Analog Devices Inc.

Microprocessor-Controlled Battery Management System Features: Fast Charge Nickel-Cadmium, Nickel-Metal-Hydride, Lithium Ion or Lead-Acid Batteries under µP Control Flexible Current Regulation: Programmable 111kHz PWM Current Regulator with Built-In PFET Driver PFET Current Gating Discharge Mode Measures Battery Voltage, Battery Temperature and Ambient Temperature with Internal 10-Bit ADC Battery Voltage, Temperature and Charge Time Fault Protection Built-In Voltage Regulator and Programmable Battery Attenuator Easy-to-Use 3- or 4-Wire Serial µP Interface Accurate Gas Gauge Function Wide Supply Range: VDD = 4.5V to 16V Can Charge Batteries with Voltages Greater Than VDD Can Charge Batteries from Charging Supplies Greater Than VDD Digital Input Pins Are High Impedance in Shutdown Mode

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