MAX1666S - Maxim

MAX1666S Advanced Lithium-Ion Battery-Pack Protector

The MAX1666 provides complete protection against overvoltage, undervoltage, overcharge current, overdischarge current, and cell mismatch for 2-cell to 4-cell Lithium-Ion battery packs. The voltage of each cell in the battery pack is checked and compared to the programmable threshold and to the other cells in the pack. The MAX1666 protects the battery pack in.

Features

o Overvoltage Protection Programmable Limits from +4.0V to +4.4V Accurate to ±0.5% o Undervoltage Protection Programmable Limits from +2.0V to +3.0V Accurate to ±2.5% o Cell Mismatch Protection Programmable Limits from 0 to 500mV Accurate to ±10% o Overcharge Current Protection o Overdischarge Current Protection o Low Operating Supply Current: 30µA typ o Low Standby Current: 1µA max o +28V max Input Voltage o Available in Small 16-Pin QSOP (MAX1666S) and 20-Pin QSOP (MAX1666V/X) Packages MAX1666S/V/X Applications 2/3/4-Cell Lithium-Ion Battery Pack Selector Guide PART MAX1666S MAX1666V MAX1.