4-Channel Current Limited Load Switch
Absolute Maximum Ratings
1
T
A
= 25°C, unless otherwise noted.
Symbol
V
IN
V
OUT
I
OUT
T
J
V
ESD
T
LEAD
AAT4644
Description
IN to GND
OUT to GND
Output Current
Operating Junction Temperature Range
ESD Rating
2
—HBM
Maximum Soldering Temperature (at Leads)
Value
-0.3 to 6
-0.3 to 6
Internally Limited
-40 to 85
4000
300
Units
V
V
A
°C
V
°C
Thermal Characteristics
3
Symbol
Θ
JA
P
D
Description
Maximum Thermal Resistance
Maximum Power Dissipation
Value
100
1.25
Units
°C/W
W
Electrical Characteristics
V
IN
= 5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C;
bold
values desig-
nate full temperature range.
Symbol
V
IN
I
Q
V
UVLO
V
UVLO(HYS)
R
DS(ON)
I
LIM
t
RESP
T
SD
Description
Operation Voltage
Quiescent Current
Under-Voltage Lockout
Under-Voltage Lockout Hysteresis
On Resistance
Current Limit
Current Loop Response
Over-Temperature Threshold
Conditions
V
IN
= 5V, I
OUT
= 0
Rising Edge
V
IN
= 5.0V, T
A
= 25°C
Each Output OUT < IN to 1V
V
IN
= 5V
Min
2.7
Typ
20
1.75
0.3
100
1.0
1
125
Max
5.5
40
Units
V
µA
V
V
mΩ
A
µs
°C
0.6
125
1.5
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at condi-
tions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
3. Mounted on a demo board.
4644.2006.05.1.2
3