Current Limited Load Switch
Typical Characteristics
Unless otherwise noted, V
IN
= 5V, T
A
= 25°C.
AAT4618
Turn-On
(R
L
= 20Ω; C
L
= 0.47µF)
6
5
6
5
Turn-Off
(R
L
= 20Ω; C
L
= 0.47µF)
Voltage (V)
4
4
3
2
1
0
-1
Voltage (V)
3
2
1
0
-1
-0.5
ON
OUT
ON
OUT
0.0
0.5
1.0
1.5
2.0
-10
0
10
20
30
40
50
Time (µs)
Time (µs)
Short Circuit Through 0.3Ω
Input and Output Voltage (V)
6
5
4
3
2
1
0
-1
0
1
2
3
4
5
Thermal Shutdown Response
12
Input Voltage
Output Current
Output Voltage
Output Current (A)
10
8
6
4
2
0
Output Voltage (5V/div)
Output Current (1A/div)
Time (µs)
Time (50ms/div)
Fault Delay from Short Circuit
2.4
ON (ON) Threshold vs. Input Voltage
ON (ON) Threshold (V)
Output Voltage (5V/div)
Output Current (1A/div)
FAULT (5V/div)
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
2
2.5
3
3.5
4
4.5
5
5.5
V
ON(H)
V
ON(L)
Time (1ms/div)
Input Voltage (V)
6
4618.2006.05.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
