MC4418 Datasheet, PDF (4/5 Pages) –

Freescale
AO4 4 18 / MC4 4 18
Typical Electrical Characteristics (N-Channel)
100
VGS = 0V
10
1
TA = 125^oC
0.1
25^oC
0.01
0.001
0.0001
0 0.2 0.4 0.6 0.8 1 1.2 1.4
VSD, BODY DIODE FORWARD VOLTAGE (V)
Figure 7. Transfer Characteristics
2.2
VDS = VGS
2
ID = -250mA
1.8
1.6
1.4
1.2
1
-50 -25 0 25 50 75 100 125 150 175
TA, AMBIENT TEMPERATURE (oC)
Figure 9. Vth Gate to Source Voltage Vs Temperature
0.1
ID = 7 A
0.08
0.06
0.04
TA = 25^oC
0.02
0
2
4
6
8
10
VGS, GATE TO SOURCE VOLTAGE (V)
Figure 8. On-Resistance with Gate to Source Voltage
50
SINGLE PULSE
RqJA = 125oC/W
40
TA = 25oC
30
20
10
0
0.001 0.01
0.1
1
10
100
t1, TIME (SEC)
Figure 10. Single Pulse Maximum Power Dissipation
1
D = 0.5
0.2
0.1
0.1
0.0
0.02
0.01
0.01
S INGLE P ULS E
0.001
0.0001
0.001
Normalized Thermal Transient Junction to Ambient
R qJ A(t) = r(t) + R qJ A
R qJ A = 125 癈/W
P (pk)
t1
t2
TJ - TA = P *R qJ A(t)
Duty C yc le , D = t1/ t2
0.01
0.1
1
10
100
1000
t1, TIM E (s e c )
Figure 11. Transient Thermal Response Curve
4
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