TDE1707BFP
INTELLIGENT POWER SWITCH
PRODUCT PREVIEW
0.5A OUTPU T CURRENT
LOW SIDE OR HIGH SIDE SWITCH CON-
FIGURATION
6V TO 48V SUPPLY VOLTA G E RANG E
OVERLOAD AND SHORT CIRCUIT PROTEC-
TIONS
INT ER NAL VO LT AG E CL A MPING
SUPPLY AND OUTPUT REVERSAL PRO-
TECTION
THERMA L SHUTDOW N
GND AND VS OP EN WIRE PROTECTION
AD JUSTABLE DELAY A T SWITCH O N
INDICATOR STA T US LED DRIVER
+5V REGULA TED A UX. VOLTAGE
HIGH BURST IM MU N ITY
DESCRIPTION
The TDE1707BFP is a 0.5A Integrated Power
Switch with up to 48V Power supply capabilit y.
Two output configurations are possible:
- Load to Gnd. (High Side Mode)
- Load to VS (Low side Mode)
Especially dedicated to proximity detectors, its in-
ternal +5V supply can be used t o supply external
circuits (See also AN495/0692). A signal is inter-
nally generated to block the In signal, and prevent
activation of the output switch, as long as an ab-
normal condition is detected. The power-on tran-
sition, as well as the chip overtemperature and
the output overcurrent, concurr to the generation
of such signal. A minimum delay of 25µs (Typ.
value) is added to the trailing edge of such signal
to ensure that a stable normal situation is present
when the signal disappears. The delay (of the dis-
apperance of the block signal; no delay at its on
set) can be further increased connecting a ca-
pacitor between pin3 and ground. It can drive re-
sistive or inductive loads.
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
September 2003
®
SO8
ORDERING NUMBER: TDE1707BFP
BLOCK DIAGRAM
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PIN C ONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VS Supply Voltage 50 V
VSr Supply Reverse Voltage 50 V
IO Output Current internally limited A
Vreg Regulated Voltage Pin 0 to 7 V
Vdelay Delay Cap. Surce Pin 0 to 5 V
VOOutput Diff. Voltage 55 V
ViInput Voltage -10 to 50 V
Top Operating Temperature Range -25 to +85 °C
Tstg Storage Temperature -55 to 150 °C
Ptot Power Dissipation internally limited W
ElEnergy Induct. Load 150 mJ
THERMAL DATA
Symbol Description Value Unit
Rth j-amb Thermal Resistance Junction-ambient Max. 150 °C/W
TDE1707BFP
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ELECTRICA L CHARACTERI STICS (V S = 24V; Tj = –25 to +85°C, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
Vs 7 Supply Voltage 6 48 V
Isr 7 Supply Reverse Current VSR = –48V 1.5 mA
Iq 7 Quiescent Current Ireg = Iled = 0; Vi < 2V;
VS = 6 to 48V 1.5 mA
Io 8/2 Output Current Vs = 6V to 32V 500 mA
Io 8/2 Output Current Vs = 32V to 48V 300 mA
Vsat 8/2 Output Voltage Drop V8-2 Io = 500mA 1.1 1.6 V
Vsat 8/2 Output Voltage Drop V8-2 Io = 300mA 1.5 V
Isc 8/2 Short Circuit Current 0.7 1.5 A
Vcl 8/2 Internal Voltage Clamp ICL = 10mA 55 70 V
Iolk 8/2 Output Leakage 0 (Pin 2)
Vi < 2V; Vo = 0 to Vs (Pin 8) 100 300
100 µA
µA
Vith 5 Input Voltage Threshold 2 3 V
Vihis 5 Input Threshold Hysteresis 300 mV
Ilk 5 Input Current Vi = 5V 2 5 µA
Vreg 6 Regulated Output Voltage Ireg < 5mA 4.5 5 5.5 V
Iscr 6 Short Ci rcuit Regulated 6 30 5 0 mA
Ireg 6 Ouput Regulator Current Vs = 35V
Vs = 48V 6
4mA
mA
Iold 1 Current Surce Sink Led Driver Output ON (±) 234mA
V
old 1 Voltage Drop Led Driver Ios = 2mA (±)1.21.6V
Oldlk 1 Lead Driver (off) Leak. Vi < 2V; RL < 1KΩ10 µA
Idch 3 Del. Cap. Charge Current TJ = 25°C 246µA
V
dth 3 Delay Voltage Trigger TJ = 25°C4V
DYNAMIC CHARACTERISTICS (V S = 24V; RL = 48Ω; TJ = 25°C)
ton Propagation Turn on Time Vi = 0 to 5V 15 µs
toff Propagation Turn off Time Vi = 5 to 0V 15 µs
tdon Delayed Turn on Time / nF
Delay Capacitor 0.65 1 2 ms
td min Minimum Delayed ton
Delay Capacitor = 0 25 µs
APPLICATION INFORMATION (See Application
Circuit)
The LED driver tells the output status.
It can source or sink current (Iold typ = 3mA), ac-
cording to the output configuration c hosen.
The thresholds, represented by the output com-
parator in the Block Diagram, are set at about
1.5V - 2V.
For instance, in the High Side Load case of the
Application Circuit, when the voltage on pin 8 (the
output) differ s from VCC less than 1.5V, the output
is sensed in "OFF" state and the LED driver is
disabled.
If instead pin 8 differs from VCC more than 3V (the
output comparator threshold value plus the drop
voltage on the LED), then the output is sensed
"ON" and the driver will force the current on the
LED.
TDE1707BFP
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APPLICATION CIRCUIT Figure 1: Input Thresholds Voltage vs.
Temperature (VS = 24V)
Figure 2: Saturation Voltage vs. Tem perature
(VS = 24V; I O = 500mA) Figure 3: Quiescent Current) vs.Temperature
(VS = 24V)
TDE1707BFP
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DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
a3 0.65 0.85 0.026 0.033
b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010
C 0.25 0.5 0.010 0.020
c1 45° (typ.)
D (1) 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 3.81 0.150
F (1) 3.8 4.0 0.15 0.157
L 0.4 1.27 0.016 0.050
M 0.6 0.024
S8° (max.)
(1) D and F do not include mold flash or protrusions. Mold flash or
potrusions shall not exceed 0.15mm (.006inch).
SO8
OUTLINE AND
MECHANICAL DATA
TDE1707BFP
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TDE1707BFP
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