Load Switch. AAT4285 Datasheet

AAT4285 Switch. Datasheet pdf. Equivalent

AAT4285 Datasheet
Recommendation AAT4285 Datasheet
Part AAT4285
Description 12V Slew Rate Controller Load Switch
Feature AAT4285; SmartSwitchTM General Description The AAT4285 SmartSwitch is a P-channel MOSFET power switch designe.
Manufacture Analogic Corporation
Datasheet
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Analogic Corporation AAT4285
SmartSwitchTM
General Description
The AAT4285 SmartSwitch is a P-channel MOSFET power
switch designed for high-side load switching applications.
The MOSFET operates from a 3.0V to 13.2V input range
making it ideal for applications in single or dual cell
Lithium-Ion battery systems. The device has a typical
RDS(ON) of 240mΩ at 12V, allowing a low forward voltage
drop and high current handling capability. The device is a
slew rate limited turn-on load switch and is functionally
compatible with the AAT4250 and AAT4280 products,
while offering a high operating voltage. The AAT4285
features fast load switch turn-on capability of 100μs and
offers a shutdown load discharge circuit to rapidly turn off
a load circuit when the switch is disabled. The quiescent
supply current is very low, typically 25μA.
The AAT4285 is available in a Pb-free, 8-pin SC70JW
package and is specified over the -40°C to +85°C tem-
perature range.
PRODUCT DATASHEET
AAT4285
12V Slew Rate Controlled Load Switch
Features
VIN Range: 3.0V to 13.2V
Low RDS(ON)
240mΩ Typical @ 12V
310mΩ Typical at 5V
• 100μs Slew Rate Turn-on Time
• Fast Shutdown Load Discharge
• Low Quiescent Current
Typically 25μA
1μA Maximum in Shutdown
• TTL/CMOS Input Logic Level
• Temperature Range: -40°C to +85°C
• 8-pin SC70JW Package
Applications
• 2 Cell Lithium-Ion Batteries
• Camcorders
• Handheld Test Equipment
• Load Switching
Typical Application
V IN
C IN
1µF
ON
IN OUT
IN AAT4285
ON/OFF
GND × 4
GND
V OUT
C OUT
0.1µF
GND
4285.2009.07.1.1
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Analogic Corporation AAT4285
SmartSwitchTM
PRODUCT DATASHEET
AAT4285
12V Slew Rate Controlled Load Switch
Pin Descriptions
Pin #
1,2
3
4
5, 6, 7, 8
Symbol
IN
OUT
ON/OFF
GND
Function
P-channel MOSFET source. Bypass to ground through a 1μF capacitor.
P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.
Active high enable input. A logic low turns the switch off and the device consumes less than 1μA of
current. Logic high resumes normal operation.
Ground connection
Pin Configuration
SC70JW-8
(Top View)
IN 1
IN 2
OUT 3
ON/OFF 4
8 GND
7 GND
6 GND
5 GND
2
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4285.2009.07.1.1



Analogic Corporation AAT4285
SmartSwitchTM
Absolute Maximum Ratings1
Symbol
VIN
VON
VOUT
IMAX
IDM
TJ
Description
IN to GND
ON/OFF to GND
OUT to GND
Maximum Continuous Switch Current
Maximum Pulsed Current
Operating Junction Temperature Range
Thermal Characteristics2
Symbol
θJA
PD
Description
Thermal Resistance
Maximum Power Dissipation
PRODUCT DATASHEET
AAT4285
12V Slew Rate Controlled Load Switch
Value
-0.3 to 14
-0.3 to 14
-0.3 to VIN + 0.3
1.7
3.4
-40 to 150
Units
V
V
V
A
A
°C
Value
140
714
Units
°C/W
mW
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions
specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.
2. Mounted on an FR4 board.
4285.2009.07.1.1
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