TI bq76PL536A－Q1电动汽车锂电池监视和保护参考设计

TI公司的bq76PL536A-Q1是可堆栈的三--六颗锂电池组保护器和模拟前端(AFE),集成了精密的ADC,单独的电池电压和温度保护,电池平衡和给用户电路供电的精密V稳压器.电源电压从7.2 V 到 27 V,主要用在电动和混合动力汽车,电动自行车和电动滑板车,不间断电源(UPS)和大型电池系统.本文介绍了bq76PL536A-Q1主要特性,框图和简化的系统连接图以及锂电池监视和保护参考设计TIDA-00821主要特性,框图,电路图,材料清单和PCB设计图.
The bq76PL536A-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 bq76PL536A-Q1 integrates a voltage translation and precision analog-to-digital converter system to measure battery cell voltages with high accuracy and speed.
The bq76PL536A-Q1 provides full protection (secondary protection) for overvoltage, undervoltage, and overtemperature conditions. When safety thresholds are exceeded, the bq76PL536A-Q1 sets the FAULT output. No external components are needed to configure or enable the protection features.
Cell voltage and temperature protection functions are independent of the ADC system. Programmable protection thresholds and detection delay times are stored in Error Check/Correct (ECC) OTP EPROM, which increases the flexibility and reliability of the battery management system.
The bq76PL536A-Q1 is intended to be used with a host controller to maximize the functionality of the battery management system. However, the protection functions do not require a host controller.
The bq76PL536A-Q1 can be stacked vertically to monitor up to 192 cells without additional isolation components between ICs. A high-speed serial peripheral interface (SPI) bus operates between each bq76PL536A-Q1 to provide reliable communications through a high-voltage battery cell stack.
bq76PL536A-Q1主要特性:
• Three-to-six s...