TI bq77910 10个锂电池精密保护和平衡解决方案

TI公司的bq77910是4-10个锂电池组的精密保护和平衡解决方案,采用内部的FET可对单个电池进行监视和平衡,直接驱动NMOS功率FET,和1毫欧姆或5欧姆检测电阻兼容,低静态电流,主要应用在无绳电动工具,无绳割草机,电动自行车,UPS,医疗设备和小型电动汽车(LEV).本文介绍了bq77910主要特性和优势,方框图,多种应用配置图以及bq77910EVM-001评估模块主要特性,电路图和材料清单.

The bq77910 precision protector is an integrated battery-protection and cell-balancing solution for Li-Ion battery packs. A single device can be configured to manage 4 to 10 cell battery packs. Two devices can be stacked to provide a solution for packs up to 20 cells in series.

This protection IC monitors individual cell voltages and can directly drive N-channel power MOSFETs to interrupt current flow during fault conditions. Fault detection and recovery criteria are fully programmable in non-volatile memory to suit all types of Li-Ion systems.Automatic cell balancing is provided using internal FETs. A robust balancing algorithm ensures optimum performance over the entire operating life of the pack.

bq77910主要特性:

4 ~ 10 series cell protection capability

Individual cell monitoring and balancing with internal FETs

NMOS power FET direct drive capability with flexible FET configuration

Compatible with 1 or 5 milliohm sense resistor..

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