PRODUCT DATASHEET AAT4285 TM SmartSwitch 12V Slew Rate Controlled Load Switch General Description Features The AAT4285 SmartSwitch is a P-channel MOSFET power V Range: 3.0V to 13.2V IN switch designed for high-side load switching applications. Low R DS(ON) The MOSFET operates from a 3.0V to 13.2V input range 240m Typical 12V making it ideal for applications in single or dual cell 310m Typical at 5V Lithium-Ion battery systems. The device has a typical 100s Slew Rate Turn-on Time R of 240m at 12V, allowing a low forward voltage Fast Shutdown Load Discharge DS(ON) drop and high current handling capability. The device is a Low Quiescent Current slew rate limited turn-on load switch and is functionally Typically 25A compatible with the AAT4250 and AAT4280 products, 1A Maximum in Shutdown while offering a high operating voltage. The AAT4285 TTL/CMOS Input Logic Level features fast load switch turn-on capability of 100s and Temperature Range: -40C to +85C offers a shutdown load discharge circuit to rapidly turn off 8-pin SC70JW Package a load circuit when the switch is disabled. The quiescent supply current is very low, typically 25A. Applications The AAT4285 is available in a Pb-free, 8-pin SC70JW 2 Cell Lithium-Ion Batteries package and is specified over the -40C to +85C tem- Camcorders perature range. Handheld Test Equipment Load Switching Typical Application V IN OUT IN V OUT AAT4285 IN C C IN OUT ON/OFF ON 1F 0.1F GND 4 GND GND 4285.2009.07.1.1 www.analogictech.com 1PRODUCT DATASHEET AAT4285 TM SmartSwitch 12V Slew Rate Controlled Load Switch Pin Descriptions Pin Symbol Function 1,2 IN P-channel MOSFET source. Bypass to ground through a 1F capacitor. 3 OUT P-channel MOSFET drain connection. Bypass to ground through a 0.1F capacitor. Active high enable input. A logic low turns the switch off and the device consumes less than 1A of 4 ON/OFF current. Logic high resumes normal operation. 5, 6, 7, 8 GND Ground connection Pin Configuration SC70JW-8 (Top View) 1 8 IN GND 2 7 IN GND 3 6 OUT GND 45 ON/OFF GND 2 www.analogictech.com 4285.2009.07.1.1