DATA SHEET AAT4626 USB Dual-Channel Power Switch General Description Features The AAT4626 SmartSwitch is part of Skyworks Application 2.7V to 5.5V Input Voltage Range Specific Power MOSFET (ASPM) product family. It is a Compliant with USB 1.1 and 2.0 Specifications dual-channel 500mA current-limited P-channel MOSFET 500mA Minimum Continuous Current per Channel power switch designed for high-side load switching appli- 1.25A Maximum Current Limit per Channel cations. This switch operates with inputs ranging from 90mW Typical R DS(ON) 2.7V to 5.5V, making it ideal for both Low Quiescent Current: Typically 20A 3V and 5V systems. An integrated current-limiting circuit 1A Maximum with Switch Off protects the input supply against large changes in load Thermal Shutdown current which may cause the supply to fall out of regula- Slew Rate Limited Turn On tion. The AAT4626 is also protected from thermal over- Fault Flag with 10ms Blanking load which limits power dissipation and junction tem- Under-Voltage Lockout (UVLO) peratures. The current limit threshold is factory pro- Temperature Range: -40C to +85C grammed at 1.0A, with a maximum of 1.5A. The quies- UL Approved - File No. E217765 cent supply current is typically a low 20A. In shutdown 8-Pin SOP or MSOP Package mode, the supply current decreases to less than 1A. The AAT4626 is available in a Pb-free, 8-pin SOP pack- Applications age and is specified over the -40C to +85C tempera- ture range. General-Purpose Power Switching Hot Swap Supplies The AAT4600 series is a family of adjustable and fixed Notebook Computers SmartSwitch products with a range of current handling USB Ports and Peripherals capabilities. Single versions are available with adjustable current limit (AAT4601) or fixed current limit (AAT4626), as well as dual versions with fixed current limit (AAT4626). UL Recognized Component Typical Application 100k 100k V 5.0V CC 7 2 FLGA IN 3 AAT4626 ENA FLGB ENA 1 (ENA) (ENA) OUTA 8 OUTA ENB ENB 4 OUTB 5 (ENB) OUTB (ENB) 0.1F 6 47F 47F GND GND Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 201946A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. July 20, 2012 1 2 DATA SHEET AAT4626 USB Dual-Channel Power Switch Pin Descriptions Pin Symbol Function EN(A/B) Enable inputs: logic-compatible enable input. Active high or active low option available 1, 4 (EN(A/B)) see Ordering Information for details. Fault flag outputs: active-low, open-drain output. Indicates over-current, UVLO, and thermal 2, 3 FLG(A/B) shutdown. 5, 8 OUT(A/B) Switch outputs: these pins are the P-channel MOSFET drain connection. 6 GND Ground connection. Supply input: this pin is the source connection for the P-channel MOSFETs. Also supplies the ICs 7 IN internal circuitry. Pin Configuration SOP-8 (Top View) 1 8 ENA(ENA) OUTA 2 7 IN FLGA 3 6 FLGB GND 4 5 ENB(ENB) OUTB Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 201946A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. July 20, 2012