NE57600

INTEGRATED CIRCUITS NE57600 One-cell Lithium-ion battery protection with over/undercharge and overcurrent protection Product data File under Integrated Circuits, Standard Analog 2001 Oct 03 Philips Semiconductors Philips Semiconductors Product data One-cell Lithium-ion battery protection with over/undercharge and overcurrent protection NE57600 GENERAL DESCRIPTION The NE57600 series is a family of small, high-precision lithium-ion battery protection devices that provide protection against the damaging effects of overcharging, overdischarging, short circuit, and excessive current consumption such as happens if the consumer uses the battery for an apparatus it was not meant to power. The NE57600 is a single-cell Li-ion protection IC. The NE57600 over and under voltage accuracy is trimmed to within ±25 mV (5%) and is available to match the requirements of all lithium-ion cells manufactured in the market today. FEATURES Trimmed overvoltage trip point to within ±25 mV Programmable overvoltage trip time delay Trimmed undervoltage trip point to within ±25 mV Very Low undervoltage sleep quiescent current 0.05 mA Discharge overcurrent cutoff Low operating current (10 mA) Very small SOT-26A package SIMPLIFIED SYSTEM DIAGRAM APPLICATIONS palmtop devices Protecting one-cell Li-ion battery packs for mobile phones or V+ + VCC 2 CDLY Li-ION CELL 3 NE57600 1 VM CHARGER OR LOADER GND 5 DF 6 CF 4 – V– DISCHARGE FET CHARGE FET SL01548 Figure 1. Simplified ...