产品详情

代理商授权 G517AH1TP2U 致新电源开关芯片

General Description

The G517 is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications.

Several Protection features include current limiting and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. A built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. When the output voltage is higher than input voltage, the power switch is turned off by internal output reverse-voltage comparator.

FLAG is an open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period.

Features

■ 47/70mΩ High-Side MOSFET

■ Available with Current Limits with Foldback

■ Operating Range:2.7V to 5.5V

■ 1ms Typical Rise Time

■ Fast Overcurrent Response -1.5μs (TYPICAL)

■ Under voltage Lockout

■ 1μA Maximum Shutdown Supply Current

■ Logic Level Enable Pin, Available with Active-High or Active-Low Version

■ No Reverse Current when Power Off

■ Deglitched Open-Drain Over-Current Flag Output (FLAG)

■ Output Reverse-Voltage/Current Protection

■ SOT-23-5，TSOT-23-6，TDFN2x2-6,WDFN2x2-6, TSOT-23-6 FC, and MSOP-8 Packages(Halogen Free)

Applications

■ High-Side Power Protection Switch

■ USB Power Management

■ USB Host and Self-Powered Bubs

■ USB Bus-Powered Hubs

■ Hot Plug-In Power Supplies

■ Battery-Charger Circuits