Data Sheet October 2008
RHRG75120
75A, 1200V Hyperfast Diode
The RHRG75120 is a hyperfast diode with soft recovery
characteristics (t
< 85ns). It has half the recovery time of
rr
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
switching circuits, thus reducing power loss in the switching
transistors.
Formerly developmental type TA49042.
Ordering Information
PART NUMBER PACKAGE BRAND
RHRG75120 TO-247 RHRG75120
NOTE: When ordering, use the entire part number.
Symbol
K
Features
• Hyperfast with Soft Recovery. . . . . . . . . . . . . . . . . . <85ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . . . .175
o
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Packaging
JEDEC STYLE TO-247
ANODE
CATHODE
CATHODE
(BOTTOM SIDE
METAL)
C
A
Absolute Maximum Ratings
Peak Repetitive Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(TC = 42oC)
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Halfwave, 1 Phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
Avalanche Energy (See Figures 7 and 8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
TC = 25oC
RRM
RWM
F(AV)
FRM
FSM
STG
RHRG75120 UNITS
1200 V
1200 V
1200 V
75 A
150 A
500 A
190 W
50 mJ
-65 to 175
AVL
, T
R
D
J
o
C
©2008 Fairchild Semiconductor Corporation RHRG75120 Rev. B1
RHRG75120
Electrical Specifications
TC = 25oC, Unless Otherwise Specified
SYMBOL TEST CONDITION MIN TYP MAX UNITS
V
F
I
R
t
rr
IF = 75A - - 3.2 V
IF = 75A, TC = 150
ο
C - - 2.6 V
VR = 1200V - - 250
VR = 1200V, TC = 150
ο
C- - 2mA
IF = 1A, dIF/dt = 100A/ µs- - 85ns
IF = 75A, dIF/dt = 100A/ µs - - 100 ns
t
a
t
b
R
θJC
IF = 75A, dIF/dt = 100A/ µs - 60 - ns
IF = 75A, dIF/dt = 100A/ µs - 25 - ns
- - 0.8
DEFINITIONS
VF = Instantaneous forward voltage (pw = 300 µs, D = 2%).
IR = Instantaneous reverse current.
trr = Reverse recovery time (See Figure 6), summation of ta + tb.
ta = Time to reach peak reverse current (See Figure 6).
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 6).
R
= Thermal resistance junction to case.
θJC
pw = Pulse width.
D = Duty cycle.
o
µA
C/W
Typical Performance Curves
400
100
10
, FORWARD CURRENT (A)
F
I
1
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
175oC
100oC
25oC
VF, FORWARD VOLTAGE (V)
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
1000
175oC
100
100oC
10
1
, REVERSE CURRENT (µA)
R
I
25oC
0.1
0 200 400 600 800 1000 1200
VR, REVERSE VOLTAGE (V)
©2008 Fairchild Semiconductor Corporation RHRG75120 Rev. B1
RHRG75120
Typical Performance Curves
100
80
60
40
t, TIME (ns)
20
0
11080
, FORWARD CURRENT (A)
I
F
(Continued)
TC = 25oC, dIF/dt = 100A/µs
t
rr
t
a
t
b
80
60
DC
40
20
, AVERAGE FORWARD CURRENT (A)
F(AV)
0
I
25 50 75 100 125 150 175
, CASE TEMPERATURE (oC)
T
C
SQ. WAVE
FIGURE 3. trr, ta AND tb CURVES vs FORWARD CURRENT FIGURE 4. CURRENT DERATING CURVE
Test Circuits and Waveforms
VGE AMPLITUDE AND
RG CONTROL dIF/dt
t
1 AND t2
CONTROL I
F
L
DUT
CURRENT
R
G
V
GE
t
1
t
2
IGBT
SENSE
+
V
DD
-
0
dI
F
I
F
dt
t
t
a
FIGURE 5. trr TEST CIRCUIT FIGURE 6. trr WAVEFORMS AND DEFINITIONS
I
= 1.6A
MAX
L = 40mH
R < 0.1Ω
E
AVL
= IGBT (BV
Q
1
= 1/2LI2 [V
R(AVL)
CES
/(V
> DUT V
Q
R(AVL)
R(AVL)
1
- VDD)]
)
CURRENT
DUT
SENSE
LR
V
AVL
+
V
DD
V
DD
-
IV
t
0
I
L
I
L
t
1
t
FIGURE 7. AVALANCHE ENERGY TEST CIRCUIT FIGURE 8. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
rr
t
b
0.25 I
RM
I
RM
2
t
©2008 Fairchild Semiconductor Corporation RHRG75120 Rev.B1
RHRG75120
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intended to be an exhaustive list of all such trademarks.
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EZSWITCH™ *
™
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FAST
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®
®
tm
®
®
®
®
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are trademarks of System General Corporation, used under license by Fairchild Semiconductor.
®
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THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body or (b) support or sustain life,
and (c) whose failure to perform when properly used in accordance with
instructions for use provided in the labeling, can be reasonably
expected to result in a significant injury of the user.
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PRODUCT STATUS DEFINITIONS
Definition of Terms
.
2. A critical component in any component of a life support, device, or
system whose failure to perform can be reasonably expected to cause
the failure of the life support device or system, or to affect its safety or
effectiveness.
Datasheet Identification Product Status Definition
Advance Information Formative / In Design
Preliminary First Production
No Identification Needed Full Production
Obsolete Not In Production
©2008 Fairchild Semiconductor Corporation RHRG75120 Rev.B1
Datasheet contains the design specifications for product development. Specifications
may change in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later
date. Fairchild Semiconductor reserves the right to make changes at any time without
notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to
make changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild
Semiconductor. The datasheet is for reference information only.
Rev. I37
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