Vishay high power products – Vishay 112CNQ030A User Manual
Page 4
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Document Number: 93202
4
Revision: 16-Aug-08
112CNQ030A
Vishay High Power Products
Schottky Rectifier
New Generation 3 D-61
Package, 2 x 55 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics (Per Leg)
Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Note
(1)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
I
F(AV)
- Average Forward Current (A)
Allowable Case Temperature (°C)
110
120
130
140
150
0
30
60
90
10
20
40
50
70
80
See note (1)
Square wave (D = 0.50)
80 % rated V
R
applied
DC
I
F(AV)
- Average Forward Current (A)
Avera
g
e Power Loss (W)
0
10
20
30
40
50
60
80
0
10
15
30
70
25
35
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
DC
RMS limit
5
20
t
p
- Square Wave Pulse Duration (µs)
I
FSM
- Non-Repetitive Sur
g
e Current (A)
10
100
1000
10 000
100
10 000
1000
At any rated load condition and
with rated V
RRM
applied
following surge
Current
monitor
High-speed
switch
D.U.T.
R
g
= 25
Ω
+
Freewheel
diode
V
d
= 25 V
L
IRFP460
40HFL40S02