©2002 Fairchild Semiconductor Corporation HUFA76645P3, HUFA76645S3S Rev. B
FIGURE 11. NORMALIZED GATE THRESHOLD VOLTAGE vs
JUNCTION TEMPERATURE
FIGURE 12. NORMALIZED DRAIN TO SOURCE BREAKDOWN
VOLTAGE vs JUNCTION TEMPERATURE
FIGURE 13. CAPACITANCE vs DRAIN TO SOURCE VOLTAGE
NOTE: Refer to Fairchild Application Notes AN7254 and AN7260.
FIGURE 14. GATE CHARGE WAVEFORMS FOR CONSTANT
GATE CURRENT
FIGURE 15. SWITCHING TIME vs GATE RESISTANCE FIGURE 16. SWITCHING TIME vs GATE RESISTANCE
Typical Performance Curves
(Continued)
0.6
0.8
1.0
1.2
-80 -40 0 40 80 120 160 200
0.4
NORMALIZED GATE
T
J
, JUNCTION TEMPERATURE (
o
C)
V
GS
= V
DS
, I
D
= 250µA
THRESHOLD VOLTAGE
1.0
1.1
1.2
-80 -40 0 40 80 120 160 200
0.9
T
J
, JUNCTION TEMPERATURE (
o
C)
NORMALIZED DRAIN TO SOURCE
BREAKDOWN VOLTAGE
I
D
= 250µA
100
1000
10000
0.1 1 10 10
70
C, CAPACITANCE (pF)
V
DS
, DRAIN TO SOURCE VOLTAGE (V)
V
GS
= 0V, f = 1MHz
C
ISS
= C
GS
+ C
GD
C
OSS
≅ C
DS
+ C
GD
C
RSS
= C
GD
2
4
6
8
10
0 30 60 90 120 15
0
V
GS
, GATE TO SOURCE VOLTAGE (V)
V
DD
= 50V
Q
g
, GATE CHARGE (nC)
I
D
= 75A
I
D
= 50A
WAVEFORMS IN
DESCENDING ORDER:
I
D
= 20A
200
400
600
800
1000
1200
0 1020304050
0
SWITCHING TIME (ns)
R
GS
, GATE TO SOURCE RESISTANCE (Ω)
V
GS
= 4.5V, V
DD
= 50V, I
D
= 62A
t
r
t
f
t
d(ON)
t
d(OFF)
200
400
600
800
1000
1200
0 1020304050
0
SWITCHING TIME (ns)
R
GS
, GATE TO SOURCE RESISTANCE (Ω)
V
GS
= 10V, V
DD
= 50V, I
D
= 75A
t
d(OFF)
t
r
t
d(ON)
t
f
HUFA76645P3, HUFA76645S3S