RT9519BGQW

RICHTEK  RT9519BGQW  芯片, 锂电池充电器, 1.2A, WQFN-20

General Description

The RT9519B is an integrated single cell Li-ion battery charger with Auto Power Path Management APPM. No

external MOSFETs are required. The RT9519B enters sleep mode when power is removed. Charging tasks are

optimized by using a control algorithm to vary the charge rate, including pre-charge mode, fast charge mode and constant voltage mode.

Features

28V Maximum Rating for VIN Power

Selectable Power Current Limit 0.1A / 0.5A / 1.5A

Integrated Power MOSFETs

Auto Power Path Management APPM

Battery Charging Current Control

Battery Regulation Voltage Control

Programmable Charging Current and Safe Charge Timer

Under Voltage Protection, Over Voltage Protection

Power Good and Charge Status Indicator

Optimized Charge Rate via Thermal Feedback

Thin 20-Lead WQFN Package

RoHS Compliant and Halogen Free

Applications

Digital Cameras

PDAs and Smart Phones

Portable Instruments