AAT4618
Current Limited Load Switch
Electrical Characteristics
VIN = 5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C; bold values denote full
temperature range.
Symbol Description
Conditions
Min Typ Max Units
VIN
IQ
IQ(OFF)
ISD(OFF)
VUVLO
Operation Voltage
Quiescent Current
Off Supply Current
Off Switch Current
Under-Voltage Lockout
2.4
5.5
25
1
V
VIN = 5V, ON (ON) = Active, IOUT = 0
ON (ON) = Inactive, VIN = 5.5V
ON (ON) = Inactive, VIN = 5.5V, VOUT = 0
VIN Falling
10
µA
µA
µA
V
0.1
1.9
1
VUVLO(hys) Under-Voltage Lockout
Hysteresis
0.3
V
VIN = 5.0V, TA = 25°C
VIN = 3.0V, TA = 25°C
125
155
175
225
RDS(ON)
TCRDS
On Resistance
mΩ
On Resistance Temperature
Coefficient
2800
ppm/°C
AAT4618-0.4
400 500
600
ILIM
Current Limit
VOUT = VIN to 0.5V
AAT4618-0.5
AAT4618-1.0
500 750 1000
1000 1500 2000
mA
VON(L)
VON(H)
ON (ON) Input Low Voltage
ON (ON) Input High Voltage
VIN = 2.7V to 5.5V1
VIN = 2.7V to ≤ 4.2V1
VIN = > 4.2V to 5.0V1
VON (ON) = 5.5V
0.8
V
V
V
µA
ns
µs
µs
V
2.0
2.4
ION(SINK)
tRESP
TOFF
ON (ON) Input Leakage
Current Loop Response
Turn-Off Time
0.01
400
5
1
VIN = 5V
VIN = 5V, RL = 20Ω
VIN = 5V, RL = 20Ω
ISINK = 1mA
TON
Turn-On Time
1
VFAULTLOW FAULT Logic Output Low
0.4
1
FAULT Logic Output High
Leakage Current
ISINK
VFAULT = 5.5V
0.5
µA
Tblank
TSD
Fault Blanking Time
Over-Temperature Threshold
4
125
ms
°C
VIN = 5V
1. For VIN outside this range, consult Typical ON (ON) Threshold curve.
4
4618.2006.05.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
