©2002 Fairchild Semiconductor Corporation RHRP8120 Rev. B
RHRP8120
8A, 1200V Hyperfast Diode
The RHRP8120 is a hyperfast diodes with soft recovery
characteristics (t
rr
< 55ns). It has half the recovery time of
ultrafast diodes and is of 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 switching power supplies
and other power switching applications. Its low stored charge
and hyperfast soft recovery minimize ringing and electrical
noise in many power switching circuits, thus reducing power
loss in the switching transistors.
Formerly developmental type TA49096.
Symbol
Features
• Hyperfast with Soft Recovery. . . . . . . . . . . . . . . . . . <55ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . . . . 175
o
C
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Packaging
JEDEC TO-220AC
Ordering Information
PART NUMBER PACKAGE BRAND
RHRP8120 TO-220AC RHRP8120
NOTE: When ordering, use the entire part number.
K
A
CATHODE
ANODE
CATHODE
(FLANGE)
Absolute Maximum Ratings
T
C
= 25
o
C, Unless Otherwise Specified
RHRP8120 UNITS
Peak Repetitive Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RRM
1200 V
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RWM
1200 V
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
R
1200 V
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I
F(AV)
(T
C
= 140
o
C)
8A
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FRM
(Square Wave, 20kHz)
16 A
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FSM
(Halfwave, 1 Phase, 60Hz)
100 A
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
D
75 W
Avalanche Energy (See Figures 10 and 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
AVL
20 mJ
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
STG
, T
J
-65 to 175
o
C
Data Sheet January 2002
©2002 Fairchild Semiconductor Corporation RHRP8120 Rev. B
Electrical Specifications
T
C
= 25
o
C, Unless Otherwise Specified
SYMBOL TEST CONDITION MIN TYP MAX UNITS
V
F
I
F
= 8A - - 3.2 V
I
F
= 8A, T
C
= 150
o
C - - 2.6 V
I
R
V
R
= 1200V - - 100
µ
A
V
R
= 1200V, T
C
= 150
o
C - - 500
µ
A
t
rr
I
F
= 1A, dI
F
/dt = 200A/
µ
s--55ns
I
F
= 8A, dI
F
/dt = 200A/
µ
s--70ns
t
a
I
F
= 8A, dI
F
/dt = 200A/
µ
s - 30 - ns
t
b
I
F
= 8A, dI
F
/dt = 200A/
µ
s - 20 - ns
Q
RR
I
F
= 8A, dI
F
/dt = 200A/
µ
s - 165 - nC
C
J
V
R
= 10V, I
F
= 0A - 25 - pF
R
θ
JC
--2
o
C/W
DEFINITIONS
V
F
= Instantaneous forward voltage (pw = 300
µ
s, D = 2%).
I
R
= Instantaneous reverse current.
t
rr
= Reverse recovery time (See Figure 9), summation of t
a
+ t
b
.
t
a
= Time to reach peak reverse current (See Figure 9).
t
b
= Time from peak I
RM
to projected zero crossing of I
RM
based on a straight line from peak I
RM
through 25% of I
RM
(See Figure 9).
Q
RR
= Reverse Recovery Charge.
C
J
= Junction Capacitance.
R
θ
JC
= Thermal resistance junction to case.
pw = Pulse Width.
D = Duty Cycle.
Typical Performance Curves
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
VF, FORWARD VOLTAGE (V)
IF,
FORWARD CURRENT (A)
1
40
0.5
10
0123 54
25oC
100oC
175oC
VR, REVERSE VOLTAGE (V)
0400 800 1200
600 1000
500
0.01
0.1
1
10
IR, REVERSE CURRENT (µA)
200
0.001
25oC
100oC
175oC
100
RHRP8120
©2002 Fairchild Semiconductor Corporation RHRP8120 Rev. B
FIGURE 3. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT FIGURE 4. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT
FIGURE 5. t
rr
, t
a
AND t
b
CURVES vs FORWARD CURRENT FIGURE 6. CURRENT DERATING CURVE
FIGURE 7. JUNCTION CAPACITANCE vs REVERSE VOLTAGE
Typical Performance Curves
(Continued)
IF, FORWARD CURRENT (A)
0.5
0
40
10
81
20
30
t, RECOVERY TIMES (ns)
4
tb
50
trr
ta
60
TC = 25oC, dIF/dt = 200A/µs
20
40
60
t, RECOVERY TIMES (ns)
IF, FORWARD CURRENT (A)
0.5
0814
80
ta
trr
100
tb
TC = 100oC, dIF/dt = 200A/µs
100
80
60
t, RECOVERY TIMES (ns)
IF, FORWARD CURRENT (A)
0.5
0
814
ta
40
120
trr
tb
20
TC = 175oC, dIF/dt = 200A/µs
10
2
0
100 115 145 175160
4
6
8
130
DC
SQ. WAVE
IF(AV), AVERAGE FORWARD CURRENT (A)
TC, CASE TEMPERATURE (oC)
VR, REVERSE VOLTAGE (V)
20
100
0
40
0 50 100 150 200
80
60
CJ, JUNCTION CAPACITANCE (pF)
RHRP8120
©2002 Fairchild Semiconductor Corporation RHRP8120 Rev. B
Test Circuits and Waveforms
FIGURE 8. t
rr
TEST CIRCUIT FIGURE 9. t
rr
WAVEFORMS AND DEFINITIONS
FIGURE 10. AVALANCHE ENERGY TEST CIRCUIT FIGURE 11. AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
RG
L
VDD
IGBT
CURRENT
SENSE
DUT
VGE
t1
t2
VGE AMPLITUDE AND
t1 AND t2 CONTROL IF
RG CONTROL dIF/dt
+
-
dt
dIF
IF
trr
tatb
0
IRM
0.25 IRM
DUT
CURRENT
SENSE
+
LR
VDD
R < 0.1Ω
EAVL = 1/2LI2 [VR(AVL) /(VR(AVL) - VDD)]
Q1 = IGBT (BVCES > DUT VR(AVL))
-
VDD
Q1
IMAX = 1A
L = 40mH
IV
t0t1t2
IL
VAVL
t
IL
RHRP8120
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
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The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
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, or (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 significant injury to the
user.
2. A critical component is 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.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Formative or
In Design
First Production
Full Production
Not In Production
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STAR*POWER is used under license
VCX™
