SEMICONDUCTOR
Copyright © Harris Corporation 1995
7-51
RHRG75120
75A, 1200V Hyperfast Diode
Features
• Hyperfast with Soft Recovery. . . . . . . . . . . . . . . .<85ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . .+175oC
• Reverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . .1200V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Description
The RHRG75120 (TA49042) is a hyperfast diode with soft
recovery characteristics (tRR < 85ns). It has half the recovery
time of ultrafast diodes and is silicon nitride passivated ion-
implanted epitaxial planar construction.
This device is intended for use as a freewheeling/clamping
diode and rectifier in a variety of high frequency switching
power supplies and other power switching applications. Its
low stored charge and hyperfast soft recovery characteristic
minimize ringing and electrical noise in many power switch-
ing circuits reducing power loss in the switching transistors.
PACKAGING AVAILABILITY
PART NUMBER PACKAGE BRAND
RHRG75120 TO-247 RHRG75120
NOTE: When ordering, use the entire part number.
April 1995
Package
JEDEC STYLE TO-247
Symbol
CATHODE CATHODE
ANODE
METAL)
(BOTTOM SIDE
K
A
Absolute Maximum Ratings TC = +25oC
RHRG75120 UNITS
Peak Repetitive Reverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VRRM 1200 V
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VRWM 1200 V
DC Blocking Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .VR1200 V
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IF(AV) 75 A
(TC = +41.3oC)
Repetitive Peak Surge Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IFSM 150 A
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IFSM 500 A
(Halfwave, 1 Phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PD190 W
Avalanche Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EAVL 50 mj
(L = 40mH)
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSTG, TJ-65 to +175 oC
File Number 3414.2
7-52
Specifications RHRG75120
Electrical Specifications TC = +25oC, Unless Otherwise Specified
SYMBOL TEST CONDITION
LIMITS
UNITSMIN TYP MAX
VFIF = 75A - - 3.2 V
VFIF = 75A TC = +150οC - - 2.6 V
IRVR = 1200V - - 500 µA
IRVR = 1200V TC = +150οC--2mA
t
RR IF = 1A, dIF/dt = 100A/µs--85ns
t
RR IF = 75A, dIF/dt = 100A/µs - - 100 ns
tAIF = 75A, dIF/dt = 100A/µs - 60 - ns
tBIF = 75A, dIF/dt = 100A/µs - 25 - ns
RθJC - - 0.8 oC/W
DEFINITIONS
VF = Instantaneous forward voltage (pw = 300µs, D = 2%).
IR = Instantaneous reverse current.
tRR = Reverse recovery time (See Figure 2), summation of tA + tB.
tA = Time to reach peak reverse current (See Figure 2).
tB = Time from peak IRM to projected zero crossing of IRM based on a straight line from peak IRM through 25% of IRM (See Figure 2).
RθJC = Thermal resistance junction to case.
EAVL = Controlled avalanche energy (See Figures 7 and 8).
pw = pulse width.
D = duty cycle.
FIGURE 1. tRR TEST CIRCUIT FIGURE 2. tRR WAVEFORMS AND DEFINITIONS
C1
LLOOP
DUT
Q3
R3
Q4
Q2
R1
R2
-V4
Q1
-V2
0
0
+V1
t1
t2
t3
R4
+V3
V1 AMPLITUDE CONTROLS I F
V2 AMPLITUDE CONTROLS dI F/dt
L1 = SELF INDUCTANCE OF t1≥ 5tA(MAX)
t2 > tRR
t3 > 0
L1
R4
tA(MIN)
10
≤
R4+ LLOOP
dt
dIF
IFtRR
tAtB
0
IRM
0.25 IRM
VR
VRM
7-53
RHRG75120
Typical Performance Curves
FIGURE 3. TYPICAL FORWARD CURRENT vs FORWARD
VOLTAGE DROP FIGURE 4. TYPICAL REVERSE CURRENT vs VOLTAGE
FIGURE 5. TYPICAL tRR, tA AND tB CURVES vs FORWARD
CURRENT FIGURE 6. CURRENT DERATING CURVE FOR ALL TYPES
FIGURE 7. AVALANCHE ENERGY TEST CIRCUIT FIGURE 8. AVALANCHE CURRENT AND VOLTAGE WAVE-
FORMS
12V
Q2
Q1
12V
130Ω
DUT
CURRENT
SENSE
+
LR
1MΩ
VDD
130Ω
IMAX = 1A
L = 40mH
R < 0.1Ω
EAVL = 1/2LI2 [VAVL/(VAVL - VDD)]
Q1 AND Q2 ARE 1000V MOSFETs
-
VDD
IV
t
0t
1t
2
I
L
V
AVL
t
IL
