[原创] TI BQ76952高精度多达16个电池监视和保护解决方案

TI公司的BQ76952是高精度电池监视器和保护器,用于3个到16个锂电池(Li-Ion),锂聚合电池(Li-Polymer)和磷酸铁锂(LiFePO4)电池组.器件包括高精度监视系统,高度配置保护子系统,支持自主或主控制的电池平衡.器件集成了高边充电泵NFET器件,用于外接系统的双可编程LDO,支持400-kHz I2C, SPI和HDQ一线标准的主通信外设.多种降功耗模式:正常模式为250 μA,多个SLEEP模式选择:20 μA到 60 μA,多个深度DEEPSLEEP选择:10 μA到14 μA以及关断SHUTDOWN模式小于2 μA.48引脚TQFP封装.主要用在电池备份单元(BBU),电动自行车,智能踏板车和LEV,无绳电动工具和花园工具,非军用无人机和其它工业电池组(>=10S).本文介绍了BQ76952主要特性,功能框图,多种应用电路以及评估模块BQ76952EVM主要特性,电路图,材料清单和PCB设计图.

The Texas Instruments BQ76952 is a highlyintegrated, high accuracy battery monitor and protector for 3-series to 16-series Li-Ion, Li-Polymer,and LiFePO4 battery packs. The device includes ahigh accuracy monitoring system, a highlyconfigurable protection subsystem, and support forautonomous or host controlled cell balancing.

Integration includes high-side charge-pump NFETdrivers, dual programmable LDOs for external systemuse, and a host communication peripheral supporting400-kHz I2C, SPI, and HDQ one-wire standards. TheBQ76952 is available in a 48-pin TQFP package.
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