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MAX1666V Datasheet Advanced Lithium-ion Battery-pack Protector

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-1465; Rev 1; 7/99 Advanced Lithium-Ion Battery-Pack Protector General.

General Description

The MAX1666 provides plete 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 pared to the programmable threshold and to the other cells in the pack.

The MAX1666 protects the battery pack in an overcurrent condition by disconnecting the pack from the load at a programmable limit.

Key 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 MAX166.

MAX1666V Distributor