原标题：TI bq76PL536-Q1 3-6组汽车锂离子电池监视解决方案

　　TI 公司的bq76pl536-Q1是 3-6组锂离子电池监视器和二级保护集成电路，器件集成了高精度ADC，精度达±1 mV，14位分辨率，6us转换时间，具有热插入和高速SPI数据通信，主要用于电动汽车和混合动力汽车，电动自行车，UPS和大容量电池系统。本文介绍了bq76PL536-Q1主要特性，方框图，参考应用电路以及bq76PL536-3评估模块特性，单电源和三个电源连接图与bq76PL536系统应用框图。

　　3 to 6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for EV and HEV Applications

　　The bq76PL536-Q1 is a stackable three to six series cell lithium-ion battery pack protector and analog front end (AFE) that incorporates a precision analog-to-digital converter (ADC); independent cell voltage and temperature protection; cell balancing, and a precision 5-V regulator to power user circuitry.

　　The bq76PL536-Q1 integrates a voltage translation and precision analog-to-digital converter system to measure battery cell voltages with high accuracy and speed.

　　The bq76PL536-Q1 provides full protection (secondary protection) for overvoltage, undervoltage, and overtemperature conditions. When safety thresholds are exceeded, the bq76PL536-Q1 sets the FAULT output. No external components are needed to configure or enable the protection features.

　　bq76PL536-Q1主要特性：

　　3 to 6 Series Cell Support, All Chemistries

　　Hot-Pluggable

　　High-Speed SPI for Data Communications

　　Stackable Vertical Interface

　　No Isolation Components Required Between ICs

　　Qualified for Automotive Applications

　　Temperature Range –40℃ to 105℃

　　High-Accuracy Analog-to-Digital Converter (ADC):

　　±1 mV Typical Accuracy

　　14-Bit Resolution, 6-µs Conversion Time

　　Nine ADC Inputs: 6 Cell Voltages, 1 Six-Cell Brick Voltage,

　　2 Temperatures, 1 General-Purpose Input

　　Dedicated Pins for Synchronizing Measurements

　　Configuration Data Stored in ECC-OTP Registers

　　Built-In Comparators (Secondary Protector) for:

　　Over- and Undervoltage Protection

　　Overtemperature Protection

　　Programmable Thresholds and Delay Times

　　Dedicated Fault Output Signals

　　Cell Balancing Control Outputs With Safety Timeout

　　Balance Current Set by External Components

　　bq76PL536-Q1应用：

　　Electric and Hybrid Electric Vehicles

　　E-Bike and E-Scooter

　　Uninterruptible Power Systems (UPS)

　　Large-Format Battery Systems

　　图1。bq76PL536-Q1 方框图

　　图2。bq76PL536-Q1 简化系统连接框图

　　图3。bq76PL536-Q1 参考应用电路(1)

　　图4。bq76PL536-Q1 参考应用电路(2)

　　图5。bq76PL536-Q1 参考应用电路(3)

　　图6。bq76PL536-Q1 参考应用电路(4)

　　bq76PL536-3评估模块

　　Evaluation Module for BQ76PL536 Lithium-Ion Battery Monitor and Secondary Protection IC

　　The User’s Guide for bq76PL536EVM-3 covers the initial connection and installation of the Texas Instruments bq76PL536 Evaluation Module (EVM), supplied in kit form including the EVM board, the USB-SPI adapter, and connectors to make cells-to-EVM connection. It is not meant as a comprehensive guide to using the ‘536 integrated circuit and its’ features.

　　图7。bq76PL536-3评估模块外形图

　　图8。bq76PL536-3评估模块三个~20V电源连接图

　　图9。bq76PL536-3评估模块单个54V电源连接图

　　图10。bq76PL536系统应用框图