3 or 4 Cell Li-Ion Battery Protection and Monitor IC

The X3100 is a protection and monitor IC for use in battery packs consisting of 4 series Lithium-Ion battery cells. The X3101 is designed to work in 3-cell applications. Both devices provide internal over-charge,over-discharge, and over current protection circuitry,internal EEPROM memory, an internal voltage regulator, and internal drive circuitry for external FET devices that control cell charge, discharge, and cell voltage balancing.

FEATUREs
• Software Selectable Protection Levels and Variable Protect Detection/Release Times
• Integrated FET Drive Circuitry
• Cell Voltage and Current Monitoring
• 0.5% Accurate Voltage Regulator
• Integrated 4k-bit EEPROM
• Flexible Power Management with 1µA Sleep Mode
• Cell Balancing Control
• Pb-Free Available (RoHS Compliant)

Benefit
• Optimize protection for chosen cells to allow maximum use of pack capacity
• Reduce component count and cost
• Simplify implementation of gas gauge
• Accurate voltage and current measurements
• Record battery history to optimize gas gauge, track pack failures and monitor system use
• Reduce power to extend battery life
• Increase battery capacity and improve cycle life battery life