Analog Power
AM4542C
Typical Electrical Characteristics (P-Channel)
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
Id=10A
100
10
TA = 125oC
1
25oC
0.1
0.01
0.001
0.0001
0
0.2
0.4
0.6
0.8
1
1.2
0
2
4
6
8
10
V
SD - Source-to-Drain Voltage (V)
VGS Gate to Source Voltage(V)
Source-Drain Diode Forward Voltage
On-Resistance with Gate to Source Voltage
50
SINGLE PULSE
RqJA = 125C/W
TA = 25C
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
40
30
20
10
0
ID = -250
A
µ
1
-50
-25
0
25
50
75
100
125
150
0.001
0.01
0.1
1
10
100
1000
TJ - Temperature (oC)
t1, TIME (sec)
Threshold Voltage
Figure 10. Single Pulse Maximum Power Dissipation
Normalized Thermal Transient Junction to Ambient
1
0.1
D=0.5
0.2
RqJA(t) = r(t) + RqJA
RqJA = 125oC/W
0.1
0.05
P (pk)
0.02
0.01
t 1
t2
0.01
TJ - TA = P *RqJA(t)
Duty Cycle, D = t1 / t2
S INGLEP ULS E
0.001
0.001
0.0001
0.01
0.1
1
10
100
1000
t1, TIME (sec)
Figure 11. Transient Thermal Response Curve
6
Publication Order Number:
DS-AM4542_D
PRELIMINARY
ANALOGPOWER [ ANALOG POWER ]
