AAT4285 Datasheet, PDF (1/11 Pages) Advanced Analogic Technologies – 12V Slew Rate Controlled Load Switch

AAT4285
12V Slew Rate Controlled Load Switch
General Description
Features
SmartSwitch^™
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 R_DS(ON) of 240mΩ at 12V, allow-
ing a low forward voltage drop and high current han-
dling 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 quies-
cent 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 temperature range.
• V_IN Range: 3.0V to 13.2V
• Low R_DS(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
IN
OUT
IN ^AAT4285
ON
ON/OFF
GND × 4
GND
V _OUT
C _OUT
0.1µF
GND
4285.2007.04.1.0
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