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NXP MC33772B移动机器人智能电池管理控制方案

NXP公司的MC33772B是SMARTMOS锂电池控制器,设计用于汽车电子应用如混合动力汽车(HEV)和电动汽车(EV)以及工业应用如能量存储系统(ESS)和不间断电源(UPS)系统.器件进行差分电池电压和电流的ADC转换以及电池库仑计数和电池温度测量.这种信息通过串行外设接口(SPI)或变压器隔离(TPL)数字发送到微控制进行处理.器件工作在5.0 V ≤ VPWR ≤ 30 V,瞬态电压40V.MC33772B能管理3到6个电池,总电池测量误差为0.8mV,隔离的2.0Mbps差分通信或4.0Mbps SPI.和库仑计数同步的电池电压/电流测量,并可对总堆栈电压测量.器件有七种GPIO/温度传感器输入,5.0V基准电源输出有5.0mA能力.自动的超压/欠压和温度检测路由到故障引脚,集成了睡眠模式超/欠压和温度监测,具有热插入功能,带诊断的板上300mA无源电池平衡,内部和外部故障如开路,短路和漏电检测,设计支持ISO 26262到 ASIL D安全系统,和AEC-Q100兼容的资质.主要用在汽车12V到高压电池组,电动自行车和电动滑板车,能量存储系统(ESS),不间断电源(UPS)和电池接线盒.本文介绍了MC33772B主要特性,简化应用框图,以及参考设计RDDRONE-BMS772主要特性,框图,电路图和材料清单.

 

The MC33772 is a SMARTMOS lithium-ion battery cell controller IC designed for automotiveapplications, such as hybrid electric (HEV) and electric vehicles (EV) along with industrialapplications, such as energy storage systems (ESS) and uninterruptible power supply(UPS) systems.

The device performs ADC conversions of the differential cell voltages and current, as well

as battery coulomb counting and battery temperature measurements. The information is

digitally transmitted through the Serial Peripheral Interface (SPI) or Transformer Isolation

(TPL) to a microcontroll

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