General Description

The RT9502 is a fully integrated low cost single-cell LiIon battery charger IC ideal for portable applications. The RT9502 is capable of being powered up from AC adapter and USB (Universal Serial Bus) port inputs. The RT9502 can automatically detect and select the AC adapter and the USB port as the power source for the charger. The RT9502 enters sleep mode when both supplies are removed.

Features

Automatic Input Supplies Selection

18V Maximum Rating for AC Adapter

Integrated Selectable 100mA and 500mA USB Charge Current

Internal Integrated P-MOSFETs

AC Adapter Power Good Status Indicator

Charge Status Indicator

Under Voltage Protection

Over Voltage Protection

Automatic Recharge Feature

Battery Temperature Monitoring

Small 10-Lead WDFN Package

Thermal Feedback Optimizing Charge Rate

RoHS Compliant and 100% Lead (Pb)-Free