・All specifications are subject to change without notice.
5
PFE SERIES
■ Product Line up
Single Output AC-DC Power Module
PFE 500-12 / □
■ Model naming method
Option
None: Standard type
T: Mounting stand φ3.3
(Non-thread, Through hole)
Output voltage
Output power
Series name
This means that, in conformity with EU Directive
2002/95/EC, lead, cadmium, mercury, hexava-
lent chromium, and specific bromine-based flame
retardants, PBB and PBDE, have not been used,
except for exempted applications.
■
Conformity to RoHS Directive
Y
E
A
R
S
warranty
2
Output Voltage 300W 500W 700W
Output Current Model Output Current Model Output Current Model
12V 25A PFE300-12 33A PFE500-12 − −
28V 10.8A PFE300-28 18A PFE500-28 − −
48V 6.3A PFE300-48 10.5A PFE500-48 − −
50-57V
（Semi-regulated） − − − − 14A PFE700-48
■ Features
● PFHC and DC/DC conversion integrated into a full brick
package
● Wide input voltage range: 85-265VAC
● High power factor: 0.95, meeting PFHC standard (EN61000-
3-2)
● High e󱐰ciency: 86% max (PFE300,500), 89% max (PFE700)
● Wide operating temperature
Baseplace temperature: -40℃ to +100℃
● Stable output voltage type (PFE300,500) and high power
semi-regulated type (PFE700) in the line-up
● Parallel operation supported (PFE700 only)
● Built-in capacitor: Ceramic type only (high reliability)
■ Applications
医 療 計 測 F A 半導体 その他
ks
コンピュータ
通 信 F A 半導体
ph
pf-a
hk-a
hws
alpha
dlp
fps
フォーマット
コンピュータ
通 信 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
PFE（AC85-265Vin）
UL60950-1/ EN60950
LowVoltageDirective
CSAC22.2No.60950-1
Note) PFE300/PFE500 are of the stable output voltage type, and they are constant-voltage power supplies as they are. PFE700 is of the semi-
regulated type, and a multiple-output power supply can be congured by connecting other multiple DC/DC converters on the back of PFE700.
医 療 計 測 F A 半導体 その他
ks
コンピュータ
通 信 F A 半導体
ph
pf-a
hk-a
hws
alpha
dlp
fps
フォーマット
コンピュータ
通 信 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
コンピュータ
通 信 医 療 計 測 F A 半導体
PB
6
PFE300 Specifications
PFE300
100
80
60
40
20
0
Baseplate Temperature（℃）
-40　 -20 　 0　 20 　 40　 60 　 80　 100
Load（％）
Derating Curve
(*1) At 100VAC/200VAC and maximum output power. (Baseplate temperature = +25℃.)
(*2) For cases where conformance to various safety specs (UL, CSA, EN) are required,
input voltage range will be 100 - 240VAC (50/60Hz).
(*3) Ratings - refer to derating curve below.
(*4) Heatsink has to be chosen according to instruction manual.
(*5) External components are needed for operation. (Refer to basic connection and instruction manual.)
(*6) Refer to instruction manual.
(*7) Ambient temperature min=-40℃
ITEMS/UNITS MODEL PFE300-12 PFE300-28 PFE300-48
Input
Voltage Range (*2)(*5) V AC85 - 265
Frequency (*2) Hz 47 - 63
Power Factor (min) (*1)(*5) 0.95
Efficiency (typ) (*1) ％81 / 83 83 / 85
Current (*1) A 4.0 / 2.0
Inrush Current (typ) (*1)(*5) A 20 / 40 peak
Output
Nominal Voltage (*1)
VDC
12 28 48
Maximum Current A 25 10.8 6.3
Maximum Power W 300 302.4
Voltage Setting Accuracy ％ ±2
Maximum Line Regulation mV 48 56 96
Maximum Load Regulation mV 48 56 96
Maximum Ripple Voltage (*5)
mVp-p
120 280 480
Voltage Adjustable Range -20% / +20%
Function
Over Current Protection 105% - 140% (Automatic recovery method)
Over Voltage Protection 125% - 145% (Inverter shutdown method)
Parallel Operation -
Series Operation (*6) Possible
Environment
Operating Temperature (*3)(*7)
℃-40 to +100 (Baseplate)
Storage Temperature ℃-40 to +100
Operating Humidity
％RH
20 - 95 (No dewdrop)
Storage Humidity
％RH
10 - 95 (No dewdrop)
Vibration At no operating, 10-55Hz (sweep for 1min.)
Amplitude 0.825mm constant (maximum 49.0m/s²) X, Y, Z 1 hour each
Shock 196.1m/s²
Cooling (*4) Conduction cooled
Isolation
Withstand Voltage Input-Baseplate : 2.5kVAC, Input-Output : 3.0kVAC for 1min.
Output-Baseplate : 1.5kVDC for 1min.
Isolation Resistance Output to Baseplate 500VDC more than 100MΩ (25℃, 70%RH)
Safety Standards Approved by UL60950-1, CSA C22.2 No.60950-1, EN60950-1
Mechanical
Weight (typ) g 250
Size (W x H x D) mm 61 x 12.7 x 116.8 (Refer to outline drawing.)
7
PB
PFE500 Specifications
100
80
60
40
20
0
Baseplate Temperature（℃）
-40　 -20 　 0　 20 　 40　 60 　 80　 100
85
Load（％）
　　　　PFE500-12
　　　　PFE500-28,48
Derating Curve
PFE500
(*1) At 100VAC/200VAC and maximum output power. (Baseplate temperature = +25℃.)
(*2) For cases where conformance to various safety specs (UL, CSA, EN) are required,
input voltage range will be 100 ~ 240VAC (50/60Hz).
(*3) Ratings - refer to derating curve on the right.
(*4) Heatsink has to be chosen according to instruction manual.
(*5) External components are needed for operation. (Refer to basic connection and instruction manual.)
(*6) Refer to instruction manual.
(*7) Ambient temperature min=-40℃
ITEMS/UNITS MODEL PFE500-12 PFE500-28 PFE500-48
Input
Voltage Range (*2)(*5) V AC85 - 265
Frequency (*2) Hz 47 - 63
Power Factor (min) (*1)(*5) 0.95
Efficiency (typ) (*1) ％82 / 83 84 / 86
Current (*1) A 5.0 / 3.0 6.2 / 3.2
Inrush Current (typ) (*1)(*5) A 20 / 40 peak
Output
Nominal Voltage (*1)
VDC
12 28 48
Maximum Current A 33 18 10.5
Maximum Power W 396 504
Voltage Setting Accuracy ％ ±2
Maximum Line Regulation mV 48 56 96
Maximum Load Regulation mV 48 56 96
Maximum Ripple & Noise (*5)
mVp-p
120 280 480
Voltage Adjustable Range -20% / +20%
Function
Over Current Protection 105% - 140% (Automatic recovery method)
Over Voltage Protection 125% - 145% (Inverter shutdown method)
Parallel Operation -
Series Operation (*6) Possible
Environment
Operating Temperature (*3)(*7)
℃-40 to +85 (Baseplate) -40 to +100 (Baseplate)
Storage Temperature ℃-40 to +100
Operating Humidity
％RH
20 - 95 (No dewdrop)
Storage Humidity
％RH
10 - 95 (No dewdrop)
Vibration At no operating, 10-55Hz (sweep for 1min.)
Amplitude 0.825mm constant (maximum 49.0m/s²) X, Y, Z 1 hour each
Shock 196.1m/s²
Cooling (*4) Conduction cooled
Isolation
Withstand Voltage Input-Baseplate : 2.5kVAC, Input-Output : 3.0kVAC for 1min.
Output-Baseplate : 1.5kVDC for 1min.
Isolation Resistance Output to Baseplate 500VDC more than 100MΩ (25℃, 70%RH)
Safety Standards Approved by UL60950-1, CSA C22.2 No.60950-1, EN60950-1
Mechanical
Weight (typ) g 250
Size (W x H x D) mm 61 x 12.7 x 116.8 (Refer to outline drawing.)
PB
8
Outline Drawing
4.0 4.0 4.0
5.2
LotNo.Seal
25.3
5.7
15.015.0
tolerance:±0.3
E:Unlessotherwisespecifieddimensional
D:Input,Intermediateterminalandsignalpin:9-φ1
C:Outputterminal:2-φ2
SeenoteC
SeenoteD
SeenoteB
SeenoteA
5.0±0.5 12.7±0.5
9.0 10.0
10.0
5.2
106.7±0.5
116.8±0.5
50.8±0.5
61.0±0.5
countryofmanufactureandsafetymarking
hereinaccordancewiththespecifications.
mounting(FG).
B:M3tappedholes4forcustomerchassis
outputvoltage,Maximumoutputcurrent,
A:Modelname,inputvoltagerange,Nominal
NOTES:
(C-UL-US,BSI&CEmarking)areshown
PFE500
(unit:mm)
C212-02-01A
MODELNAME
L
C
L
C
+BC
AC-DC
BARCODE
R +BC
R
ENA
TRIM
MADEINJAPAN
-BC
-BC
6060N
E
N
E
959500
+S
-S
TRIM
ENA
-S
+S
INPUT:100-240VAC8A
OUTPUT:48V10.5A
50/60Hz
PFE500-48
AC(N)
AC(L) AC(L)
AC(N)
+V
-V
+V
-V
(unit : mm)
PFE300, 500
Basic Connection
PFE500
Measurementpointfor
Voload/lineregulation
Measurementpointforoutputripple&noise.
(JEITARC-9131Aprobe)
Bandwidthofscope:100MHz
OUTPUT
INPUT
AC(N)
BASE-
PLATE
TFR1
TRIM
ENA
F1
L=50mm
L1
C1
C2
C3
C4 C5
C6
C7
C8
C9
C10
C11
C12 C13
AC(L)
R1
L2
‒V
+V
+BCR
‒S
‒BC
+S
F1 AC250V 15A C11 12V: 25V 1000uF (Elec.)
C1 AC250V 1uF (Film) 28V: 50V 470uF (Elec.)
C2 4700pF 48V: 100V 220uF (Elec.)
C3 4700pF C12 100V 2.2uF (Ceramic)
C4 AC250V 1uF (Film) C13 12V: 25V 1000uF (Elec.)
C5 AC250V 1uF (Film) 28V: 50V 470uF (Elec.)
C6 450V 1uF (Film) 48V: 100V 220uF (Elec.)
C7 450V 1uF (Film) R1 2W 470kΩ
C8 450V 390uF x2 Parallel (Elec.) TFR1 10Ω 139℃ (Res., Thermal fuse)
C9 0.033uF L1 6mH
C10 0.033uF L2 6mH
NOTES:
A: Model name, input voltage range, nominal
output voltage, maximum output current,
country of manufacture and safety marking
(C-UL-US, BSI & CE marking) are shown
here in accordance with the specifications.
B: M3 tapped holes 4 for customer chassis
mounting (FG).
C: Output terminal : 2-Φ2
D: Input, Intermediate terminal and signal pin:
9-Φ1
E: Unless otherwise specified dimensional
tolerance : ±0.3
9
PB
ITEMS/UNITaSMODEL PFE700-48
Input
Voltage Range (*2)(*5) V AC 85 - 265
Frequency (*2) Hz 47 - 63
Power Factor (min) (*1)(*5) 0.95
Efficiency (typ) (*1) ％86 / 89
Current (*1) A 8.8 / 4.4
Inrush Current (typ) (*1)(*5) A 20 / 40 peak
Output
Nominal Voltage (*1)
VDC
51
Voltage Regulation Range (*7)
V 50 - 57
Maximum Current A 14
Maximum Power W 714
Voltage Setting Accuracy (*1) ％ ±1
Maximum Ripple & Noise (*5)
mVp-p
4
Function
Over Current Protection 105% - 140% (Automatic recovery method)
Over Voltage Protection
VDC
60.0 - 69.6 (Inverter shutdown method)
Parallel Operation (*6) Possible
Series Operation (*6) Possible
Environment
Operating Temperature (*3) ℃-40 to +100 (Baseplate), Ambient temperature min=-40℃
Storage Temperature ℃-40 to +100
Operating Humidity
％RH
20 - 95 (No dewdrop)
Storage Humidity
％RH
10 - 95 (No dewdrop)
Vibration At no operating, 10-55Hz (sweep for 1min.)
Amplitude 0.825mm constant (maximum 49.0m/s²) X, Y, Z 1 hour each
Shock 196.1m/s²
Cooling (*4) Conduction cooled
Isolation
Withstand Voltage Input-Baseplate : 2.5kVAC, Input-Output : 3.0kVAC for 1min.
Output-Baseplate : 1.5kVDC for 1min.
Isolation Resistance Output to baseplate 500VDC more than 100MΩ (25℃, 70%RH)
Standards
Safety Standards Approved by UL60950-1, CSA C22 : 2 No.60950-1, EN60950-1
Mechanical
Weight (typ) g 250
Size (W x H x D) mm 61 x 12.7 x 116.8 (Refer to outline drawing.)
(*1) At 100VAC/200VAC and maximum output power. (Baseplate temperature = +25℃.)
(*2) For cases where conformance to various safety specs (UL, CSA, EN) are required, input voltage range will be 100 ~ 240VAC (50/60Hz).
(*3) Ratings - refer to Derating Curve on the right.
(*4) Heatsink has to be chosen according to Instruction manual.
(*5) External components are needed for operation. (Refer to basic connection and instruction manual.)
(*6) Refer to Instruction manual.
(*7) For all input voltage, output load and temperature range.
PFE700
PFE700 Specifications
Derating Curve
100
80
60
40
20
0
Baseplate Temperature（℃）
-40　 -20 　 0 　 20　 40 　 60 　 80　 100
Load（％）
85℃
85%
100
80
60
40
20
0
Input Voltage（VAC）
80　 100 　 120 140 160 180 200 220 240 260
Load（％）
Tbp：85℃
Tbp：100℃
85%
70%
26585
PB
10
PFE700
Outline Drawing
(NU:Makenoexternalconnection)
(C-UL-US,BSI&CEmarking)areshown
NOTES:
A:Modelname,inputvoltagerange,Nominal
outputvoltage,Maximumoutputcurrent,
B:M3tappedholes4forcustomerchassis
mounting(FG).
hereinaccordancewiththespecifications.
countryofmanufactureandsafetymarking
AC(N) -V
AC(L) +V
C:Outputterminal:2-φ2
D:Input,Intermediateterminalandsignalpin:9-φ1
E:Unlessotherwisespecifieddimensional
tolerance:±0.3
-VM
R +BC -BC
+VM
ENA
NC
61.0±0.5
50.8±0.5
116.8±0.5
106.7±0.5
5.2
10.0
10.09.0
12.7±0.55.0±0.5
SeenoteA
SeenoteB
SeenoteD
SeenoteC
15.0 15.0
5.7
25.3
C
L
C
L
LotNo.Seal
5.2
4.04.04.0
INPUT:100-240VAC11A
OUTPUT:51V14A
50/60Hz
PFE700-48 -V
+V
ENA
NC
+VM
-VM
-BC+BC
AC(N)
AC(L)
R
MADEINJAPAN
AC-DC
BARCODE
6060N
E
N
E
959500
Basic Connection
PFE700
OUTPUT
AC(N)
BASE-
PLATE
TFR1
ENA
F1
L=50mm
L1
C1
C2
C3
C4 C5
C6
C7
C8
C9
C10
C11
C12 C13
AC(L)
R1
L2
‒V
+V
+VM
‒VM
NC
+BCR ‒BC
INPUT
Measurementpointfor
Volineregulation
Measurementpointforoutputripple&noise.
(JEITARC-9131Aprobe)
Bandwidthofscope:100MHz
F1 AC250V 15A C9 0.033uF
C1 AC250V 1uF(Film) C10 0.033uF
C2 4700pF C11 100V 220uF(
Elec.)
C3 4700pF C12 100V 2.2uF(
Ceramic
)
C4 AC250V 1uF(Film) C13 100V 220uF(
Elec.
)
C5 AC250V 1uF(Film) R1 2W 470k Ω
C6 450V 1uF(Film) TFR1
10 Ω 139℃(Res.,Thermal fuse)
C7 450V 1uF(Film) L1 6mH
C8
450V 390uF x2 Parallel(Elec.)
L2 6mH
NOTES:
A: Model name, input voltage range, Nominal out-
put voltage, Maximum output current, country of
manufacture and safety marking (C-UL-US, BSI &
CE marking) are shown here in accordance with
the specifications.
B: M3 tapped holes 4 for customer chassis mounting
(FG).
C: Output terminal : 2-Φ2
D: Input, Intermediate terminal and signal pin: 9-Φ1
(NC : Make no external connection)
E: Unless otherwise specified dimensional tolerance :
±0.3
11
PB
PFE300, 500
Sequence Time Chart
InputVoltage
(AC)
(BoostedVoltage)
OutputVoltage
H
L
H
L
OVP
Activate
385VDC(Typ)
BCTerminalVoltage
ENASignal
InputLine
Throw-in
InputLine
Cut-off
InputLine
Cut-off
InputLine
Cut-off
InputLine
Throw-in
InputLine
Throw-in
InputLine
Throw-in
OTP
Circuit
Activate
OCP
Activate
OCP
Release
Block Diagram
Switching Frequency
PFHC circuit (fixed) : 100kHz
DC/DC converter (fixed) : 230kHz (primary),460kHz (secondary)
Note : This product has no remote ON/OFF function.
PB
12
Block Diagram
Sequence Time Chart
InputVoltage
(AC)
(BoostedVoltage)
OutputVoltage
H
L
H
L
OVP
Activate
385VDC(Typ)
BCTerminalVoltage
ENASignal
InputLine
Throw-in
InputLine
Cut-off
InputLine
Cut-off
InputLine
Cut-off
InputLine
Throw-in
InputLine
Throw-in
InputLine
Throw-in
OTP
Circuit
Activate
OCP
Activate
OCP
Release
Note : This product has no remote ON/OFF function.
Switching Frequency
PFHC circuit (fixed) : 100kHz
DC/DC converter (fixed) : 180kHz (primary), 360kHz (secondary)
PFE700
PFE300, 500
13
PB
PFE300, 500 Instruction Manual
Be sure to read this instruction manual thoroughly before using
this product. Pay attention to all cautions and warnings before
using this product. Incorrect usage could lead to an electrical
shock, damage to the unit or a re hazard.
WARNING
● Do not make unauthorized changes to power supply unit, oth-
erwise you may have electric shock and void your warranty.
● Do not touch this unit and the internal components in opera-
tion or shortly after shut down. They may have high voltage
or high temperature and as the unit dissipates its heat so the
surface of the unit is hot. You may receive electric shock or
burn.
● When the unit is operating, keep your hands and face away
from it; you may be injured by an accident
● Do not use unit under unusual condition such as emission of
smoke or abnormal smell and sound etc. It might cause re
and electric shock. In such case, please contact us; do not
repair by yourself, as it is dangerous for the user.
● Do not drop or insert anything into unit. It might cause failure
and re.
● Do not operate these units under condensation condition. It
may cause re and electric shock.
CAUTION
● As a component part, compliance with the standard will be
based upon installation in the nal application. This product
must be installed in a restricted access location, accessible
to authorized competent personnel only. These AC to DC
converters have reinforced insulation between the input and
the output. The outputs of these products are energy haz-
ards. All models with an output greater than 28V model are
considered to be non-SELV. As such, the instructions for use
must refer to these energy hazardous outputs and Non-SELV
outputs in that the outputs must not be accessible to the
operator. The installer must also provide protection against
inadvertent contact by a service engineer.
● The equipment has been evaluated for use in a Pollution De-
gree 2 environment.
● This power supply is primarily designed and manufactured to
be used and enclosed in other equipment.
● Conrm connections to input/output terminals and signal ter-
minals are correct as indicated in the instruction manual.
● Attach an HBC external fuse to each module to ensure safety
operation and compliance to each safety standard approval.
The recommended input fuse rating within the instructions is
as follows: -15AHBC, 250V fast acting fuse. The breaking
capacity and voltage rating of this fuse may be subject to the
end use application.
● Input voltage, output current, output power, ambient tempera-
ture and ambient humidity should be used within specica-
tions, otherwise the unit will be damaged.
● For application equipment, which requires very high reliability
(nuclear related equipment, traffic control equipment, medi-
cal equipment, etc.), please provide fail safety function in the
equipment.
● Do not use the product in environment with strong electro-
magnetic eld, corrosive gas and conductive substance.
● Do not operate and store this unit at an environment where
condensation occurs. In such case, waterproof treatment is
necessary
● Never operate the unit under over current or shorted condi-
tions for 30 seconds or more and out of Input Voltage Range
as specication. Insulation failure, smoking, burning or other
damage may occur to the unit.
● The output voltage of this power supply unit is considered
to be a hazardous energy level. (The voltage is 2V or more
and the electric power is 240VA or more.) Prevention from
direct contact with output terminal is highly necessary. While
installing or servicing this power supply unit, avoid dropping
tools by mistake or direct contact with output terminal. This
might cause an electric shock. While repairing this power
supply unit, the AC input power must be switched o󱐯 and the
input and output voltage should be level.
● To maintain the SELV output for outputs less than 28VDC,
under fault conditions, the output must be connected to earth
in the nal application.
● The application circuits and their parameter are for reference
only. Be sure to verify effectiveness of application circuits
and their parameters before nalizing circuit design.
● Do not inject abnormal voltage to output terminal and signal
terminal from the outside. The injection of reverse voltage or
over voltage exceeding nominal output voltage to output ter-
minals might cause damage to internal components.
● This information in this document is subject to change with-
out prior notice. For actual design-in, please refer to the lat-
est publications of data sheet, etc., for the most up-to-date
date specications of the unit.
● No part of this document may be copied or reproduced in any
form without prior written consent of Densei-Lambda.
Note : CE MARKING
CE Marking, when applied to a product covered by this hand-
book, indicates compliance with the low voltage directive
(73/23/EEC) as modied by the CE Marking Directive (93/68/
EEC) which complies with EN60950.
BEFORE USING THE POWER SUPPLY UNIT
PFE300, 500
15
14
15
14
AC(N)
BASE-
PLATE
TFR1
TRIM
ENA
F1
Load
L＝50mm
L1
C1
C2
C3
C4 C5
C6
C7
C8
C9
C10
C11
C12 C13
AC(L)
R1
L2
−V
＋V
＋BCR
−S
−BC
＋S
PFE300,
PFE500
INPUTFILTER
（ForVCCI-classA）
[Input side terminals]
AC(L) : Input terminal live line
AC(N) : Input terminal neutral line
+BC : +Boosted voltage terminal
-BC : -Boosted voltage terminal
R : External inrush current limiting resistor
[Output side terminals]
+V : +Output terminal
-V : -Output terminal
+S : +Remote sensing terminal
-S : -Remote sensing terminal
TRIM : Output voltage trimming terminal
ENA : Power on signal terminal
1. Terminal Explanation
AC(N) −V
＋V
TRIM
ENA
−S
−BC
＋S
＋BCR
AC(L)
NamePlate
･Baseplate can be connected to FG through M3 mounting tapped holes.
･Consider contact resistance when connecting AC(L), AC(N), R, +BC, -BC, +V, -V.
･Note that +BC and -BC terminals is a primary voltage with high voltage (385VDC).
Do not connect load from these terminals.
Fig. 1-1 Basic Connection
2. Explanations on Specifications
1InputVoltageRange
Input voltage range is indicated below. Take care not to
apply input voltage which is out of this specied range nor
should a DC input voltage be applied as this would result
into power module damage.
Input Voltage Range: Single Phase 85 to 265VAC
Line Frequency Range: 47 to 63Hz
This manual explains based on “Fig.1-1 Basic Connection”.
Please do actual evaluation when changing circuit from Fig.1-1.
15
14
PFE300, 500
15
14
External Input Fuse
This power module has no internal fuse. Use external fuse
to acquire each safety standard and to further improve
safety. Further, Fast-Blow type fuse must be used per one
module. Also, in-rush surge current ows during line throw-
in. Be sure to check I2t rating of external switch and exter-
nal fuse.
Recommended External Fuse: 15A
Select fuse based on rated voltage, rated current and
surge current capability.
（1）Voltage Ratings
100VAC line: AC125V
200VAC line: AC250V
（2）Current Ratings
Rated current is determined by the maximum input
current based on operating conditions and can be cal-
culated by the following formula.
　　　lin(max) ＝ Pout (Arms) (Formula 1-1)
Vin x E󱐯 x PF
Iin (max): Maximum Input Current
Pout: Maximum Output Power
Vin: Minimum Input Voltage
E󱐯: E󱐰ciency
PF: Power Factor
For efficiency and power factor values, refer to separate
"Evaluation Data of each product".
C1, C4, C5: 1uF (Film Capacitor)
Ripple current ows through this capacitor. When selecting
capacitor, be sure to check the allowable maximum ripple
current rating of this capacitor. Verify the actual ripple
current owing through this capacitor by doing actual mea-
surement.
Recommended Voltage Rating: 250VAC
Note）Connect C5 as near as possible towards the input termi-
nals of this power module.
L1, L2: 6mH
Add common mode choke coil as EMI/EMS counter-mea-
sure. When using multiple modules, connect coil to each
module.
Note）Depending on the input lter used, noise might increase
or power module might malfunction due to filter reso-
nance.
C2, C3: 4,700pF (Ceramic Capacitor)
Add ceramic capacitor as EMI/EMS countermeasure. Be
sure to consider leakage current of your equipment when
adding this capacitor.
High withstand voltage are applied across this capacitor
depending on the application. Select capacitors with high
withstand voltage rating.
R1: 470kΩ
Connect bleeder resistor across AC(L) and AC(N) termi-
nals.
C6, C7: 1uF (Film Capacitor)
Ripple current ows through this capacitor. When selecting
capacitor, be sure to check the allowable maximum ripple
current rating of this capacitor. Verify the actual ripple
current owing through this capacitor by doing actual mea-
surement.
Recommended Voltage Rating : 450VDC
Note）Select Capacitor with more than 3A (rms) rating. Connect
C6, C7 as near as possible towards the output terminals
of this power module.
C8: Electrolytic Capacitor
PFE300: 470μF×1
PFE500: 390μF×2 pcs in parallel
Refer to "Selection Method of External Bulk Capacitor for
Boost Voltage" below.
Allowable External Capacitance at nominal capacitor value
is shown below.
Recommended Voltage Rating: 450VDC
Recommended Total Capacitor: 390uF to 1,200uF
Note）1. Do not connect capacitors with more than the above
capacitance value as this would result into power
module damage.
2. When using module below -20℃ ambient temperature,
AC ripple of boost voltage, output ripple voltage and
stand up characteristics might be affected by ESR
characteristics of the bulk capacitor.
Therefore, be sure to verify characteristics by actual
evaluation.
C9, C10: 0.033uF
Connect ceramic or lm capacitor as EMI/EMS counter-
measure and to reduce spike noise.
Note）High Voltage is applied across this capacitor during
withstand voltage test depending on the application.
Connect C9, C10 as near as possible towards the output
terminals of this power module.
C11: Refer to Table 1-1
To reduce output ripple noise voltage, connect electrolytic
capacitors across +V and -V.
Note）Connect C11 as near as possible to the +V and -V out-
put terminals of this power module.
Vout C11
12V 25V 1,000uF
28V 50V 470uF
48V 100V 220uF
Table 1-1 C11 : Recommended external capacitance
C12: 2.2uF
Connect chip ceramic capacitor within 50mm from the
output terminals +V and -V of the power module to reduce
output spike noise.
Also, note that output spike voltage may vary depending on
the wiring pattern of the printed circuit board.
PFE300, 500
17
16
17
16
C13 : Refer to Table 1-2
Connect C13 within 50mm from the output terminals +V
and -V of the power module to stabilize operation.
Note that the output ripple and line turn o󱐯 characteristics
of the power module might be affected by the ESR and
ESL of the electrolytic capacitor.
Also, note that output ripple voltage may vary depending
on the wiring pattern of the printed circuit board.
Sudden change in output voltage due to sudden load
change or sudden input voltage change can be reduced by
increasing external output capacitor value.
Vout C13
12V 25V 1,000uF
28V 50V 470uF
48V 100V 220uF
Table 1-2 C13 : Recommended external capacitance
Note）1. Use low-impedance electrolytic capacitors with excel-
lent temperature characteristics.
(Nihon Chemi-con LXY Series or equivalent)
(Nichicon PM Series or equivalent)
2. For module operation at ambient temperature -20℃ or
less, output ripple voltage might be a󱐯ected by ESR
characteristics of the electrolytic capacitors. Increase
the capacitor values shown in Table 1-1 and 1-2 ac-
cording to the table below.
Vout C11，C13
12V 25V 1,000uF x 2parallel
28V 50V 470uF x 2parallel
48V 100V 220uF x 2parallel
Table 1-3 C11, C13 : Recommended external
capacitance
(Ambient Temperature < -20 deg C)
3. Take note of the maximum allowable ripple current of
the electrolytic capacitor used. Especially, for sudden
load current changes, verify actual ripple current and
make sure that allowable maximum ripple current is
not be exceeded.
● Selection Method of External Bulk Capacitor for
Boost Voltage
Boost voltage bulk capacitor is determined by boost volt-
age ripple voltage, ripple current and hold-up time.
Select capacitor value such that boost voltage ripple volt-
age does not exceed 15Vp-p.
Note）When ambient temperature is -20℃ or less,
Boost voltage might increase due to ESR characteristics.
Therefore, verify above characteristics by actual evalua-
tion.
For output hold-up time, refer to separate document "PFE
300 Series Evaluation Data" or "PFE500 Series Evalua-
tion Data" and use appropriate capacitor up to 1,200uF
maximum. (It is recommended that verification should be
done through actual evaluation).
For allowable ripple current value, refer to Fig. 1-2 and se-
lect a capacitor with higher ripple current rating.
0
500
1000
1500
2000
2500
0 20
Loadcurrent（%）
RippleCurrent（mArms）
40 60 80 100
100VAC
200VAC
Fig. 1-2 Allowable ripple current value
TFR1 : 10 to 100Ω
By connecting thermal fuse resistor across R and +BC
terminals as shown in Fig.1-1, in-rush current during line
throw-in can be suppressed. Failures due to in-rush current
such as melting of external fuse, welding of relay or switch
connecting joints or shutdown of No-Fuse Breakers (NFB)
can occur. Therefore, be sure to connect this external ther-
mal fuse resistor.
Note that this module will not operate without this external
resistor.
● Selection Method of External Resistor
（1）Calculating Resistance Value for TFR1
Resistance can be calculated by the formula below.
　　R＝ Vin (Ω) (Formula 1-2)
lrush
R: Resistance Value for External TFR1
Vin: Input Voltage converted to DC value
　　 =Input Votlage (rms) ×√￣2
Irush: Input surge current value
（2）Required Surge Current Rating
Su󱐰cient surge current withstand capability is required
for external TFR1.
Required Surge Current Rating can be selected by I2t.
(Current squared multiplied by time).
l2t＝ Co x Vin2
(A2s) (Formula 1-3)
2 x R
I2t: Current-squared multiplied by time
Co: Booster Voltage Bulk Capacitance
Vin: Input Voltage converted to DC value
　　 = Input Voltage (rms) x √￣2
R: Resistance Value for External TFR1
2
OutputVoltageAdjustmentRange
Output Voltage can be adjusted within the range below by
connecting xed and variable resistors. However, take care
not to exceed the output voltage range shown below be-
cause OVP function will activate.
Output Voltage Adjustment Range :
±20% of the typical voltage rating
When increasing output voltage, reduce output current so
as not to exceed maximum output power.
Even if the output voltage is adjusted using external circuit
shown in Fig.2-1, remote sensing can be done. For details
on remote sensing function, refer to "9. Remote Sensing".
17
16
PFE300, 500
17
16
Output Voltage Adjustment using Fixed and Variable
Resistors
External resistor (R1) and variable resistor (VR) values, as
well as, circuit connection is shown below.
For this case, remote programming of the output voltage
can be done through the remote programming resistor VR.
Be sure to connect the remote programming resistor be-
tween +S and +V terminals.
12V 28V 48V
R1 10k 47k 100k
VR 10k 20k 30k
unit: [Ω]
　　External Resistor: Tolerance ±5% or less
　　Variable Resistor: Total Tolerance ±20% or less
　　　　　　　　　　 End Resistance 1% or less
Table 2-1 External Resistor and Variable Resistor Value
(For ±20% Output Adjustment)
＋S
＋
−
＋V
+
VR
+
−S
TRIM
R1
Load
−V
Fig. 2-1 External Resistor Connection Example
3MaximumRippleandNoise
This value is measured according to the description below
in accordance with JEITA-9131A (Section 7.12 and Sec-
tion 7.13).
In the basic connection shown in Fig.1-1, additional
connection shown in Fig.3-1 is done for measurement.
Capacitor (Ceramic Capacitor: 2.2μF and Electrolytic
Capacitor: Refer to Table 1-2) must be connected within
50mm from the output terminals. Then, connect coaxial
cable with JEITA attachment across the ceramic capacitor
electrodes. Use 100MHz bandwidth oscilloscope or equiv-
alent.
Also, note that output ripple voltage and output spike noise
may vary depending on the wiring pattern of the printed
circuit board.
In general, output ripple voltage and output spike noise can
be reduced by increasing external capacitor value.
＋
−
＋V
Load
Wiresmustbeasshortaspossible
50mm
JEITA
Attachment
 R：50Ω
 C：4700pF
OscilloscopeR
C
1.5m50Ω
CoaxialCable
−V
Fig. 3-1 Output Ripple Voltage (including Spike Noise)
Measurement Method　　　　　　　
　
4MaximumLineRegulation
Maximum line regulation is dened as the maximum output
voltage change when input voltage is gradually changed
(Steady-State) within specication range.
5MaximumLoadRegulation
Maximum load regulation is dened as the maximum out-
put voltage change when output load current is gradually
changed (Steady-State) within specication range.
When using power module in dynamic load mode, audible
sound could be heard from the power module or large out-
put voltage change can occur. Make prior evaluation thor-
oughly before using this power module.
6OverCurrentProtection(OCP)
This module is equipped with OCP function.
Output will automatically recover when short circuit or
overload condition is removed. OCP value is xed and can-
not be adjusted externally.
Note that continuous short circuit or overload condition
might result in power module damage.
7OverVoltageProtection(OVP)
This module is equipped with OVP function. This value is
set between 125% to 145% of nominal output voltage.
When the OVP function activates, first cut off input line
and verify that boost voltage has dropped down to 20V or
less. Then, recover output by recycling input line.
OVP value is xed and cannot be set externally.
8
OverTemperatureProtection(OTP)
This module is equipped with OTP function. This func-
tion will activate and shutdown the output when ambient
temperature or internal temperature abnormally rises. OTP
activates at following baseplate temperature.
PFE300-12, 28, 48: 105 to 130℃
PFE500-12: 90 to 115℃
PFE500-28, 48: 105 to 130℃
When OTP function operates, output can be recovered
by cooling down the baseplate su󱐰ciently and letting the
boost voltage drop down to 20V or less before recycling
the input line.
PFE300, 500
19
18
19
18
9
RemoteSensing(+S,-STerminals)
This module has remote sensing terminals to compensate
for voltage line drop from the output terminals to the output
load. When remote sensing is not required (local sensing)
short +S to +V and -S to -V terminals respectively.
Note that line drop (voltage drop due to wiring ) compen-
sation voltage range must be such that the output voltage
is within the output voltage adjustment range and that the
voltage between -V and -S must be within 2V.
Consider power loss due to line drop and use power mod-
ule within the maximum allowable output power. Reduce
the e󱐯ect of noise to the remote sensing line by using a
shield line, a twist pair, or a parallel pattern, etc.
＋S
OutputVoltagestable
atLoadTerminal
TwistedPair
(Example)
＋V
−S
＋
−
Load
−V
Fig. 9-1 Remote Sensing is used
＋S
+ +
＋
−
＋V
−S
Load
OutputVoltagestableat
PowerModuleOutputTerminals
−V
Fig. 9-2 Remote Sensing is not used (Local Sensing)
󱫒SeriesOperation
Series operation is possible for PFE300, 500 Series.
Connections shown in Fig.10-1 and Fig.10-2 are possible.
＋S
＋
−
＋V
−S
Load
−V
＋S
＋V
−S
−V
Fig. 10-1 Series Operation for High Output Voltage
Applications　　　　　　　　
　
＋S
＋
−
＋V
−S
Load
＋
−
Load
−V
＋S
＋V
−S
−V
Fig. 10-2 ±Output Series Applications
󱫓
PowerONSignal(ENATerminal)
This signal is located at the secondary side (output side)
and is an open collector output.
(Maximum sink current is 10mA and maximum applied volt-
age is 75V.)
Return line for ENA terminal is the -V terminal.
When output voltage goes over a specied voltage level at
start up, Power ON signal is "Low level".
Output voltage threshold level is as follows.
PFE300 or PFE500-12：9V （TYP）
PFE300 or PFE500-28：21V （TYP）
PFE300 or PFE500-48：37V （TYP）
On the other hand, output voltage threshold level for Power
ON signal to turn high level at shutdown varies according
to output condition. Therefore, be sure to do actual veri-
cation.
󱫔
OperatingAmbientTemperatureRange
These products can be used in any orientation but be sure
to consider enough airflow to avoid heat accumulation
around the module. Consider surrounding components lay-
out and set the PCB mounting direction such that air can
ow through the heatsink by forced or convection cooling.
This product can operate at actual mounting condition
when baseplate temperature is maintained at or below the
following baseplate temperature:
PFE300-12, 28, 48: 100℃
PFE500-12: 85℃
PFE500-28, 48: 100℃
Verify baseplate temperature at worst case operating con-
dition at the measuring point shown in Fig. 12-1.
For Thermal Design details, refer to Application Notes
"Thermal Design" section.
Baseplate
Temperature
MeasuringPoint
Fig. 12-1 Baseplate Measuring Point
19
18
PFE300, 500
19
18
Baseplate temperature range is limited according to Fig.
12-2.
−40 −20 0
0
20
40
60
80
100
20 40 60
PFE500-12
PFE500-28,48
PFE300-12,28,48
80
85
100
BaseplateTemperature(℃)
LoadCurrent(％)
Fig. 12-2 Derating Curve
To further improve the reliability, it is recommended to use
this module with baseplate temperature derating.
󱫕OperatingAmbientHumidity
Note that dewdrop might cause power module abnormal
operation or damage.
󱫖StorageAmbientTemperature
Note that rapid temperature change causes dewdrop. caus-
ing harmful effect on soldering condition of the terminal
pins.
󱫗StorageAmbientHumidity
Storage under high temperature and high humidity causes
rust on terminal pins that causes deterioration of soldering
conditions. Take enough caution when storing this module.
󱫘CoolingMethod
For details of thermal design, refer to Application Notes
"Thermal Design" section.
󱫙WithstandVoltage
This module is designed to withstand applied voltage
2.5kVAC between input and baseplate, 3kVAC between
input and output for a duration of 1 minute. When doing
this test during incoming inspection, set the current limit of
test equipment to 20mA.
This module is designed to withstand applied voltage
1.5kVDC between output and baseplate for 1 minute.
When doing this test during incoming inspection, be sure
to apply DC voltage only. Avoid applying AC voltage dur-
ing this test because this will damage the module.
Refrain from injecting high test voltage suddenly. Be sure
to gradually increase the applied withstand voltage during
testing and gradually reduce the voltage after the test.
Especially, when using timer switch of the test equipment,
impulse voltage which is higher than the applied set volt-
age, is generated when the timer switch is cut o󱐯. This
causes damage to the power module. Connect each termi-
nal according to the circuit diagram shown below.
For basic connection shown in Fig.1-1, do the same termi-
nal connections.
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋S
TRIM
ENA
−S
PFE300,PFE500
Withstand
VoltageTester
(TopView)
2.5kVAC 1 minute (20mA)
Fig. 17-1 Input to Baseplate Withstand Voltage Test
Method　　　　　　　　　　　
　
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋S
TRIM
ENA
−S
Withstand
VoltageTester
PFE300,PFE500
(TopView)
3kVAC 1 minute (20mA)
Fig.17-2 Input to Output Withstand Voltage Test Method
PFE300,PFE500
(TopView)
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋S
TRIM
ENA
−S
Withstand
VoltageTester
1.5kVDC 1 minute
Fig.17-3 Output to Baseplate Withstand Voltage Test
Method　　　　　　　　　　　　
　
PFE300, 500
PB
20
󱫚InsulationResistance
Use DC Insulation Resistance test equipment (MAX.500V)
between output and baseplate.
Insulation Resistance must be 100MΩ or more at 500VDC.
Take caution that some types of test equipment generate
high pulse voltage when switching applied voltage. After
test, discharge this module using resistor, etc.
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋S
TRIM
ENA
−S
PFE300,PFE500
(TopView)
InsulationResistanceTester
100MΩ or more at 500VDC
Fig. 18-1 Insulation Resistance Test Method
Verify following items before concluding power module
damage.
1）No output voltage
● Is specied input voltage applied?
● During output voltage adjustment, is the xed resis-
tor or variable resistor setting correct?
● Is there no abnormality with the output load?
● Is the actual baseplate temperature within the speci-
ed operating temperature of this module?
2）Output voltage is high
● Are the remote sensing terminals (+S, -S) correctly
connected?
● Is the measurement done at the sensing points?
● During output voltage adjustment, is the xed resis-
tor or variable resistor setting correct?
3）Output voltage is low
● Is specied input voltage applied?
● Are the remote sensing terminals (+S, -S) correctly
connected?
● Is the measurement done at the sensing points?
● During output voltage adjustment, is the xed resis-
tor or variable resistor setting correct?
● Is there no abnormality with the output load?
4）Load regulation or line regulation is large
● Is specied input voltage applied?
● Are the input or output terminals rmly connected?
● Is the measurement done at the sensing points?
● Are the input and output wires too thin?
5）Large output ripple
● Is the measurement done according to methods
described Application Notes or is it an equiva lent
method?
4. Before Concluding Power Module Damage
PFE700
21
PB
PFE700 Instruction Manual
Be sure to read this instruction manual thoroughly before using
this product. Pay attention to all cautions and warnings before
using this product. Incorrect usage could lead to an electric
shock, damage to the unit or a re hazard.
WARNING
● Do not make unauthorized changes to power supply unit, oth-
erwise you may have electric shock and void your warranty.
● Do not touch this unit and the internal components in opera-
tion or shortly after shut down. They may have high voltage
or high temperature and as the unit dissipates its heat so the
surface of the unit is hot. You may receive electric shock or
burn.
● When the unit is operating, keep your hands and face away
from it; you may be injured by an accident.
● Do not use unit under unusual condition such as emission of
smoke or abnormal smell and sound etc. It might cause re
and electric shock. In such case, please contact us; do not
repair by yourself, as it is dangerous for the user.
● Do not drop or insert anything into unit. It might cause failure
and re.
● Do not operate these units under condensation condition. It
may cause re and electric shock.
CAUTION
● As a component part, compliance with the standard will be
based upon installation in the nal application. This product
must be installed in a restricted access location, acces-
sible to authorized competent personnel only. These AC to
DC converters have reinforced insulation between the input
and the output. The outputs of these products are energy
hazards. This model is considered to be non-SELV. As such,
the instructions for use must refer to these energy hazardous
outputs and Non-SELV outputs in that the outputs must not
be accessible to the operator. The installer must also provide
protection against inadvertent contact by a service engineer.
● The equipment has been evaluated for use in a Pollution De-
gree 2 environment.
● This power supply is primarily designed and manufactured to
be used and enclosed in other equipment.
● Conrm connections to input/output terminals and signal ter-
minals are correct as indicated in the instruction manual.
● Attach an HBC external fuse to each module to ensure safety
operation and compliance to each safety standard approval.
The recommended input fuse rating within the instructions is
as follows: -15AHBC, 250V fast acting fuse. The breaking
capacity and voltage rating of this fuse may be subject to the
end use application.
● Input voltage, output current, output power, ambient tempera-
ture and ambient humidity should be used within specica-
tions, otherwise the unit will be damaged.
● For application equipment, which requires very high reliability
(nuclear related equipment, traffic control equipment, medi-
cal equipment, etc.), please provide fail safety function in the
equipment.
● Do not use the product in environment with strong electromag-
netic eld, corrosive gas and conductive substance.
● Do not operate and store this unit at an environment where
condensation occurs. In such case, waterproof treatment is
necessary.
● Never operate the unit under over current or shorted condi-
tions for 30 seconds or more and out of input voltage range
as specication. Insulation failure, smoking, burning or other
damage may occur to the unit.
● The output voltage of this power supply unit is considered to
be a hazardous energy level. (The voltage is 2V or more and
the electric power is 240VA or more.) Prevention from direct
contact with output terminal is highly necessary. While install-
ing or servicing this power supply unit, avoid dropping tools
by mistake or direct contact with output terminal. This might
cause an electric shock. While repairing this power supply
unit, the AC input power must be switched o󱐯 and the input
and output voltage should be level.
● To maintain the SELV output for outputs less than 28VDC,
under fault conditions, the output must be connected to earth
in the nal application.
● The application circuits and their parameter are for reference
only. Be sure to verify effectiveness of application circuits
and their parameters before nalizing circuit design.
● Do not inject abnormal voltage to output terminal and signal
terminal from the outside. The injection of reverse voltage or
over voltage exceeding nominal output voltage to output ter-
minals might cause damage to internal components.
● This information in this document is subject to change with-
out prior notice. For actual design-in, please refer to the lat-
est publications of data sheet, etc., for the most up-to-date
specications of the unit.
● No part of this document may be copied or reproduced in any
form without prior written consent of Densei-Lambda.
Note：CE MARKING
CE Marking, when applied to a product covered by this hand-
book, indicates compliance with the low voltage directive
(73/23/EEC) as modied by the CE Marking Directive (93/68/
EEC) which complies with EN60950.
BEFORE USING THE POWER SUPPLY UNIT
PFE700
23
22
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22
［Input side terminals］
AC（L）: Input terminal live line
AC（N）: Input terminal neutral line
＋BC : ＋Boost voltage terminal
－BC : －Boost voltage terminal
R : External inrush current limiting resistor
［Output side terminals］
＋V : ＋Output terminal
－V : －Output terminal
＋VM : ＋VOutput monitor terminal
－VM : －VOutput monitor terminal
NC : Make no external connection
ENA : Power on signal terminal
1. Terminal Explanation
・ Baseplate can be connected to FG through M3 mounting tapped holes.
・ Consider contact resistance when connecting AC(L), AC(N), R, ＋BC, －BC, +V, －V.
・ Note that ＋BC and －BC terminals are primary voltage with high voltage (385VDC).
Do not connect load from these terminals.
・ Do not make external connection to NC terminal.
Fig. 1-1 Basic Connection
2. Explanations on Specifications
1 Input Voltage Range
Input voltage range is indicated below. Take care not to
apply input voltage which is out of this specied range nor
should a DC input voltage be applied as this would result
into power module damage.
Input Voltage Range: Single Phase 85 to 265VAC
Line Frequency Range : 47 to 63Hz
AC(N) –V
+V
NC
ENA
–VM
–BC
+VM
+BCR
AC(L)
Name Plate
AC(N)
BASE-
PLATE
TFR1
ENA
F1
Load
L＝50mm
L1
C1
C2
C3
C4 C5
C6
C7
C8
C9
C10
C11
C12 C13
AC(L)
R1
L2
−V
＋V
＋VM
＋BCR −BC
−VM
NC
PFE700
INPUTFILTER
（ForVCCI-classA）
This manual explains based on "Fig. 1-1 Basic Connection." Please do actual evaluation when changing circuit from Fig.1-1.
23
22
PFE700
23
22
External Input Fuse
This power module has no internal fuse. Use external fuse
to acquire each safety standard and to further improve
safety. Further, Fast-Blow type fuse must be used per one
module. Also, in-rush surge current ows during line throw-
in. Be sure to check I2t rating of external switch and exter-
nal fuse.
Recommended External Fuse：15A
Select fuse based on rated voltage, rated current and
surge current capability.
（1）Voltage Ratings
100VAC line：AC125V
200VAC line：AC250V
（2）Current Ratings
Rated current is determined by the maximum input
current based on operating conditions and can be cal-
culated by the following formula.
　　lin（max）＝ Pout
（Arms）（Formula 1-1）
Vin×E󱐯×PF
Iin（max）：Maximum Input Current
Pout： Maximum Output Power
Vin： Minimum Input Voltage
E󱐯： E󱐰ciency
PF： Power Factor
　　
For e󱐰ciency and power factor values, refer to sepa-
rate document "PFE700 Series Evaluation Data".
C1, C4, C5：1μF（Film Capacitor）
Ripple current ows through this capacitor. When selecting
capacitor, be sure to check the allowable maximum ripple
current rating of this capacitor. Verify the actual ripple
current owing through this capacitor by doing actual mea-
surement.
Recommended Voltage Rating: 250VAC
Note）Connect C5 as near as possible towards the input termi-
nals of this power module.
　
L1, L2：6mH
Add common mode choke coil as EMI/EMS counter-mea-
sure. When using multiple modules, connect coil to each
module.
Note）Depending on the input lter used, noise might increase
or power module might malfunction due to filter reso-
nance.
C2, C3: 4,700pF（Ceramic Capacitor）
Add ceramic capacitor as EMI/EMS countermeasure. Be
sure to consider leakage current of your equipment when
adding this capacitor.
High withstand voltage are applied across this capacitor
depending on the application. Select capacitors with high
withstand voltage rating.
R1：470kΩ
Connect bleeder resistor across AC(L) and AC(N) termi-
nals.
C6, C7：1μF（Film Capacitor）
Ripple current ows through this capacitor. When selecting
capacitor, be sure to check the allowable maximum ripple
current rating of this capacitor. Verify the actual ripple
current owing through this capacitor by doing actual mea-
surement.
Recommended Voltage Rating：450VDC
Note） Select Capacitor with more than 3A (rms) rating. Con-
nect C6, C7 as near as possible towards the output ter-
minals of this power module.
C8：780μF（390μF×2 pcs. in parallel）
（Electrolytic Capacitor）
Refer to "Selection Method of External Bulk Capacitor for
Boost Voltage" below.
Allowable external capacitance at nominal capacitor value
is shown below.
Recommended Voltage Rating：450VDC
Recommended Total Capacitor：390uF to 1,200uF
Note）1. Do not connect capacitors with more than the above
capacitance value as this would result into power
module damage.
2. When using module below -20 deg C ambient temper-
ature, AC ripple of boost voltage, output ripple voltage
and start up characteristics might be a󱐯ected by ESR
characteristics of the bulk capacitors. Therefore, be
sure to verify characteristics by actual evaluation.
C9, C10：0.033μF
Connect ceramic or film capacitor as EMI/EMS counter-
measure and to reduce spike noise.
Note）High voltage is applied across this capacitor during with-
stand voltage test depending on the application.
Connect C9, C10 as near as possible towards the output
terminals of this power module.
C11：220μF
To reduce output ripple noise voltage, connect electrolytic
capacitors across ＋V and −V.
Note）Connect C11 as near as possible to the ＋V and −V
output terminals of this power module.
Recommended Voltage Rating：100VDC
C12：2.2μF
Connect chip ceramic capacitor within 50mm from the out-
put terminals ＋V and −V of the power module to reduce
output spike noise.
Also, note that output spike voltage may vary depending on
the wiring pattern of the printed circuit board.
C13：220μF
Connect C13 within 50mm from the output terminals ＋V
and −V of the power module to stabilize operation.
Note that the output ripple and line turn o󱐯 characteristics
of the power module might be affected by the ESR and
ESL of the electrolytic capacitor.
Also, note that output ripple voltage may vary depending
PFE700
25
24
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24
on the wiring pattern of the printed circuit board.
Sudden change in output voltage due to sudden load
change or sudden input voltage change can be reduced by
increasing external output capacitor value.
Recommended Voltage Rating：100VDC
Note）1. Use low-impedance electrolytic capacitors with excel-
lent temperature characteristics.
（Nichicon PM Series or equivalent）
2. For module operation at ambient temperature −20
deg C or less, output ripple voltage might be a󱐯ected
by ESR characteristics of the electrolytic capacitors.
Increase the capacitor values shown below.
C11, C13: 100V 220μF x 2 parallel
（Ambient Temperature<−20 deg C）
3. Take note of the maximum allowable ripple current of
the electrolytic capacitor used. Especially, for sudden
load current changes, verify actual ripple current and
make sure that allowable maximum ripple current is
not be exceeded.
● Selection Method of External Bulk Capacitor for
Boost Voltage
Boost voltage bulk capacitor is determined by boost volt-
age ripple voltage, ripple current and hold-up time.
Select capacitor value such that boost voltage ripple volt-
age does not exceed 15Vp-p.
Note） When ambient temperature is −20 deg C or less, Boost
voltage might increase due to ESR characteristics.
Therefore, verify above characteristics by actual evalua-
tion.
For output hold-up time, refer to separate document
"PFE700 Series Evaluation Data" and use appropriate ca-
pacitor up to 1,200uF maximum. (It is recommended that
verication should be done through actual evaluation).
For allowable ripple current value, refer to Fig.1-2 and se-
lect a capacitor with higher ripple current rating.
0
500
1000
1500
2000
2500
0 20 4 0 60 80 100
100VAC
200VAC
LoadCurrent（%）
RippleCurrent（mArms）
Fig. 1-2 Allowable ripple current value
TFR1：10 to 100 ohm
By connecting thermal fuse resistor across R and ＋BC
terminals as shown in Fig.1-1, in-rush current during line
throw-in can be suppressed. Failures due to in-rush current
such as melting of external fuse, welding of relay or switch
connecting joints or shutdown of No-Fuse Breakers (NFB)
might occur. Therefore, be sure to connect this external
thermal fuse resistor.
Note that this module will not operate without this external
resistor.
● Selection Method of External Resistor
（1）Calculating Resistance Value for TFR1
　　Resistance can be calculated by the formula below.
　　R＝ Vin （Ω）（Formula 1-2）
lrush
R： Resistance Value for External TFR1
Vin： Input Voltage converted to DC value
＝ Input Voltage（rms）×√￣2
Irush：Input surge current value
（2）Required Surge Current Rating
Sufficient surge current withstand capability is re-
quired for external TFR1. Required surge current rat-
ing can be selected by l2t. (Current squared multiplied
by time)
　　l2t＝ Co×Vin2
（A2s）（Formula 1-3）
2×R
I2t： Current-squared multiplied by time
Co： Boost Voltage Bulk Capacitance
Vin： Input Voltage converted to DC value
　　 ＝ Input Voltage（rms）×√￣2
R： Resistance Value for External TFR1
2MaximumRippleandNoise
This value is measured according to the description below
in accordance with JEITA-9131A (Section 7.12 and Sec-
tion 7.13).
In the basic connection shown in Fig.1-1, additional
connection shown in Fig.2-1 is done for measurement.
Capacitor (ceramic capacitor 2.2μF and electrolytic
capacitor: 220μF) must be connected within 50mm from
the output terminals. Then, connect coaxial cable with
JEITA attachment across the ceramic capacitor electrodes.
Use 100MHz bandwidth oscilloscope or equivalent.
Also, note that output ripple voltage and output spike noise
may vary depending on the wiring pattern of the printed
circuit board.
In general, output ripple voltage and output spike noise can
be reduced by increasing external capacitor value.
＋
−
＋V
Load
Wiresmustbeasshortaspossible
50mm
JEITA
Attachment
 R：50Ω
 C：4700pF
Oscilloscope
R
C
1.5m50Ω
CoaxialCable
−V
Fig. 2-1 Output Ripple Voltage (including Spike Noise)
Measurement Method
3MaximumLineRegulation
Maximum line regulation is dened as the maximum output
voltage change when input voltage is gradually changed
(steady-state) within specication range.
4MaximumLoadRegulation
Maximum load regulation is dened as the maximum out-
put voltage change when output load current is gradually
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24
PFE700
25
24
changed (steady-state) within specication range.
When using power module in dynamic load mode, audible
sound could be heard from the power module or large out-
put voltage change can occur. Make prior evaluation thor-
oughly before using this power module.
5OverCurrentProtection(OCP)
This module is equipped with OCP function.
Output will automatically recover when short circuit or
overload condition is removed. OCP value is xed and can-
not be adjusted externally.
Note that continuous short circuit or overload condition
might result in power module damage.
6OverVoltageProtection(OVP)
This module is equipped with OVP function. This value is
set between 60.0V to 69.6V.
When the OVP function activates, first cut off input line
and verify that boost voltage has dropped down to 20V or
less. Then, recover output by recycling input line.
OVP value is xed and cannot be set externally.
7
OverTemperatureProtection(OTP)
This module is equipped with OTP function. This func-
tion will activate and shut down the output when ambient
temperature or internal temperature abnormally rises. OTP
activates at following baseplate temperature.
OTP operating temperature：105 to 130 deg C
When OTP function operates, output can be recovered
by cooling down the baseplate su󱐰ciently and letting the
boost voltage drop down to 20V or less before recycling
the input line.
8ParallelOperation
Current share parallel operation is possible for PFE700
Series by connecting the output terminal of each power
module. The maximum value of the output current that can
be drawn is 85% of the total rated output current. (70% at
three phase parallel operation)
Consult us for details when using PFE700 Series at paral-
lel operation.
9SeriesOperation
Series operation is possible for PFE700 Series.
Connections shown in Fig.9-1 and Fig.9-2 are possible.
＋
−
＋V
Load
−V
＋V
−V
Fig. 9-1 Series Operation for High Output Voltage Applications
＋
−
＋V
Load
＋
−
Load
−V
＋V
−V
Fig. 9-2 ＋/−Output Series Applications
󱫒
PowerONSignal(ENATerminal)
This signal is located at the secondary side (output side)
and is an open collector output.
(Maximum sink current is 10mA and maximum applied volt-
age is 75V.)
When output voltage goes over 46V(TYP) at start up, Pow-
er ON signal is "Low Level".
On the other hand, output voltage threshold level for Power
ON signal to turn "High Level" at shutdown varies accord-
ing to output condition.
Therefore, be sure to do actual verication.
󱫓
OperatingAmbientTemperatureRange
These products can be used in any orientation but be sure
to consider enough airflow to avoid heat accumulation
around the module. Consider surrounding components lay-
out and set the PCB mounting direction such that air can
ow through the heatsink by forced or convection cooling.
This product can operate at actual mounting condition
when baseplate temperature is maintained at or below the
100 deg C.
Verify baseplate temperature at worst case operating con-
dition at the measuring point shown in Fig.11-1.
For Thermal Design details, refer to Application Notes
"Thermal Design" section.
BaseplateTemperature
MeasuringPoint
Fig.11-1 Baseplate Measuring Point
Baseplate temperature range is limited according to Fig.
11-2.
−40 −20 0
0
20
40
60
80
100
20 40 60 80
85
85
85
70
100
Baseplatetemperature (℃)
Loadcurrent (％)
80 100 120
0
20
40
60
80
100
140 160 180
Tbp：85℃
Tbp：100℃
200
85
265
220 240 260
InputVoltage (VAC)
Loadcurrent (％)
Fig. 11-2 Derating Curve
To further improve the reliability, it is recommended to use
this module with baseplate temperature derating.
PFE700
27
26
27
26
󱫔OperatingAmbientHumidity
Note that dewdrop might cause power module abnormal
operation or damage.
󱫕StorageAmbientTemperature
Note that rapid temperature change causes dewdrop caus-
ing harmful effect on soldering condition of the terminal
pins.
󱫖StorageAmbientHumidity
Storage under high temperature and high humidity causes
rust on terminal pins that causes deterioration of soldering
conditions. Take enough caution when storing this module.
󱫗CoolingMethod
For details of thermal design, refer to Application Notes
"Thermal Design" section.
󱫘WithstandVoltage
This module is designed to withstand applied voltage
2.5kVAC between input and baseplate, 3kVAC between
input and output for a duration of 1 minute. When doing
this test during incoming inspection, set the current limit of
test equipment to 20mA.
This module is designed to withstand applied voltage
1.5kVDC between output and baseplate for 1 minute.
When doing this test during incoming inspection, be sure
to apply DC voltage only. Avoid applying AC voltage dur-
ing this test because this will damage the module.
Refrain from injecting high test voltage suddenly. Be sure
to gradually increase the applied withstand voltage during
testing and gradually reduce the voltage after the test.
Especially, when using timer switch of the test equipment,
impulse voltage which is higher than the applied set volt-
age, is generated when the timer switch is cut off. This
causes damage to the power module. Connect each termi-
nal according to the circuit diagram shown below.
For basic connection shown in Fig.1-1, do the same termi-
nal connections.
Withstand Voltage Tester
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋VM
NC
ENA
−VM
PFE700
(TopView)
2.5kVAC 1 minute (20mA)
Fig. 16-1 Input to Baseplate Withstand Voltage Test Method
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋ＶＭ
NC
ENA
ーＶＭ
PFE700
WithstandVoltegeTester
(TopView)
　3kVAC 1 minute (20mA)
Fig.16-2 Input to Output Withstand Voltage Test Method
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋ＶＭ
NC
ENA
−ＶＭ
PFE700
WithstandVoltageTester
(TopView)
1.5kVDC 1 minute
Fig.16-3 Output to Baseplate Withstand Voltage Test Method
󱫙InsulationResistance
Use DC Insulation Resistance test equipment (MAX.500V)
between output and baseplate.
Insulation Resistance must be 100Mohm or more at
500VDC. Take caution that some types of test equipment
generate high pulse voltage when switching applied volt-
age. After test, discharge this module using resistor, etc.
BASE-PLATE
AC(N)
AC(L)
R ＋BC −BC
＋V
−V
＋ＶＭ
NC
ENA
ーVM
PFE700
InsulationResistanceTester
(TopView)
100M ohm or more at 500VDC
Fig. 17-1 Insulation Resistance Test Method
27
26
PFE700
27
26
Verify following items before concluding power module
damage.
1）No output voltage
●
Is specied input voltage applied?
●
Is there no abnormality with the output load?
●
Is the actual baseplate temperature within the speci-
ed operating temperature of this module?
2）Output voltage is low
●
Is specied input voltage applied?
● Is there no abnormality with the output load?
3）Load regulation or line regulation is large
●
Is specied input voltage applied?
●
Are the input or output terminals rmly connected?
●
Are the input and output wires too thin?
4）Large output ripple
●
Is the measurement done according to methods
described Application Notes or is it an equivalent
method?
4. Before Concluding Power Module Damage
TDK Corporation
HEAD OFFICE 1-13-1Nihonbashi, Chuo-ku, Tokyo 103-8270, JAPAN
Tel: 81-3-5201-7206 Fax: 81-3-5201-7207
http://www.tdk.co.jp/
DENSEI-LAMBDA K.K.
HEAD OFFICE Denpa Bldg. 1-11-15 Higashi-Gotanda,
Shinagawa-ku, Tokyo 141-0022, JAPAN
Tel: 81-03-3447-4411 Fax: 81-03-3447-7784
http://www.densei-lambda.com/
Change of Content Specifications or designs in this catalog are subject to change due to improvements without
prior notice.
Trademarks Company names, product names, service marks and/or logos used, quoted and/or referenced in this
catalog are trademarks or registered trademarks of TDK Corporation or DENSEI-LAMBDA K.K. or any of its affiliates
in Japan and other countries. Not all trademarks or registered trademarks stated herein are followed by (R) or (TM).
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PEF-0707E
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Tel: 1-972-506-9800
Fax: 1-972-869-3353
AUSTIN Sales Office
Tel: 1-512-514-6308
FAX: 1-413-541-8329
SAN JOSE District Office
Tel: 1-408-437-9585
Fax: 1-408-437-9591
SAN DIEGO District Office
Tel: 1-858-554-0999
Fax: 1-858-554-1861
LOS ANGELES Sales Office
Tel: 1-562-596-1212
Fax: 1-562-596-4841
DENVER Sales Office
Tel: 1-303-926-4996
Fax: 1-303-926-4997
BRASIL
TDK DO BRASIL IND. E COM. LTDA.
Tel: 55-11-289-9599
Fax: 55-11-289-9940
TDK DA AMAZONIA IMP. E COM. LTDA.
Tel: 55-92-3622-1967
Fax: 55-92-3622-3270
EUROPE
GERMANY
TDK ELECTRONICS EUROPE GmbH.
Tel: 49-211-90770
Fax: 49-211-414984
STUTTGART Regional Office
Tel: 49-7152-928290
Fax: 49-7152-928295
ITALY
MILAN Branch Office
Tel: 39-02-9822271
Fax: 39-02-98240765
FRANCE
PARIS Branch Office
Tel: 33-1-40943400
Fax: 33-1-40943444
SWEDEN
STOCKHOLM Branch Office
Tel: 46-8-59099100
Fax: 46-8-59030026
U.K.
UK Branch Office
Tel: 44-1737-773-773
Fax: 44-1737-781-360
HUNGARY
HUNGARY Sales Office
Tel: 36-35-551-777
Fax: 36-35-551-899