General Description

The MAX8730 highly integrated, multichemistry, battery-charger control IC simplifies construction of accurate and efficient chargers. The MAX8730 operates at high switching frequency to minimize external component size and cost. The MAX8730 uses analog inputs to control charge current and voltage, and can be programmed by a microcontroller or hardwired.

Features

♦ Small Inductor (3.5µH)

♦ Programmable Charge Current > 4.5A

♦ Automatic Power-Source Selection

♦ Analog Inputs Control Charge Current and Charge Voltage

♦ Monitor Outputs for

   AC Adapter Current

   Battery-Discharge Current

   AC Adapter Presence

♦ Independent 3.3V 20mA Linear Regulator

♦ Up to 17.6V (max) Battery Voltage

♦ +8V to +28V Input Voltage Range

♦ Reverse Adapter Protection

♦ System Short-Circuit Protection

♦ Cycle-by-Cycle Current Limit

Applications

   Notebook Computers

   Tablet PCs

   Portable Equipment with Rechargeable Batteries