Freescale
Typical Electrical Characteristics
10
VGS-Gate-to-Source Voltage (V)
V
DS
= 15V
I
D
= 14.8A
8
2
RDS(on) - On-Resistance(Ω)
(Normalized)
AO4494L/ MC4494L
1.5
6
4
1
2
0
0
10
20
30
40
Qg - Total Gate Charge (nC)
0.5
-50
-25
0
25
50
75
100
125
150
TJ -JunctionTemperature(°C)
7. Gate Charge
1000
10 uS
100 uS
1 mS
8. Normalized On-Resistance Vs
Junction Temperature
150
PEAK TRANSIENT POWER (W)
100
ID Current (A)
120
10
10 mS
100 mS
1 SEC
90
1
10 SEC
100 SEC
60
0.1
1
0.1
1
10
100
DC
Idm limit
Limited by
RDS
30
0.01
1000
VDS Drain to Source Voltage (V)
0
0.001
0.01
0.1
1
10
100
1000
t1 TIME (SEC)
9. Safe Operating Area
1
D = 0.5
0.2
0.1
0.1
0.05
0.02
0.01
Single Pulse
10. Single Pulse Maximum Power Dissipation
R
θJA
(t) = r(t) + R
θJA
R
θJA
= 80
°C
/W
P(pk)
t
1
t
2
T
J
- T
A
= P * R
θJA
(t)
Duty Cycle, D = t
1
/ t
2
0.01
0.1
t1 TIME (sec)
1
10
100
1000
0.001
0.0001
0.001
11. Normalized Thermal Transient Junction to Ambient
4
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