DESCRIPTION
The DS2441 1-Cell Li-Ion Battery Manager provides all essential functions for monitoring, protecting and managing one-cell lithium-ion battery packs. The DS2441 constantly measures cell voltage, current, and temperature, and automatically takes action to disable charging and/or discharging of the cell to protect it when undesirable conditions arise.

FEATURES
■ Provides all identification, information, instrumentation and protection functions needed in a lithium-ion battery pack
■ Supports one-cell battery packs
■ Protects cell from:
    – overvoltage (overcharge)
    – undervoltage (overdischarge)
    – overcurrent (charging and discharging)
    – high temperatures (thermal runaway)
■ Current accumulator tracks remaining battery capacity in 0.5% increments
■ Voltage measurement with 10 mV accuracy
■ Temperature measurement with ±2°C accuracy eliminates need for thermistor
■ 32-byte user memory stores battery data
■ 64-bit ROM ID uniquely identifies each battery pack
■ 1-Wire™ interface carries all commands and data via a single wire
■ Programmable alarm warns when cell is nearly discharged
■ Programmable I/O pin supports LEDs, vibration motors and other features
■ Operating temperature range: -40°C to +85°C
■ 10kV ESD rating