A4776中文資料創(chuàng)瑞科技數據手冊PDF規(guī)格書

DESCRIPTION

The A4776 is Adjustable USB Load Current Switch Current Limited designed for high-side load switching applications. The internal current-limiting circuit protects the input supply against large output short circuit current which may cause the supply to fall out of regulation.

The current limit threshold is programmed with an external resistor from ISET Pin to ground. The quiescent supply current is typically 150μA, making the device ideal for portable battery-operated equipment. In shutdown mode, the supply current decreases to less than 0.1μA.

Additional features include thermal shutdown and constant current output characteristics if current exceed its current limit.

The A4776 is available in SOT-25 package.

FEATURES

? 2.5 to 5.5V input voltage range

? Controlled turn on

? 0.15 1. 3 A adjustable current limit

? 6 current limit accuracy

? 0.25 o hm on resistance

? Fast current limit response time

? Logic Control Shutdown (I Q <1uA)

? Thermal shutdown and UVLO

? Reverse c urrent blocking

? Available in SOT-25 Package

APPLICATION

? Portable Devices

? MID, MP4…

? Set top boxes

? Notebook and PC mother board

? USB supplied Devices