[原创] TI bq76200高压电池组前端充放电驱动方案

TI公司的bq76200是低功耗高边N沟道系统,可防止系统的接地引脚断开连接,同时允许电池组与主机系统之间进行持续通信,具有独立的数字使能充/放电控制,支持通用和独立的充/放电路径配置,最高耐压为 100V,主要用在电动自行车(eBike),动踏板车 (eScooter 和电动摩托车 (eMotorcycles),储能系统和不间断电源(UPS),便携式医疗系统,无线基站电池系统,铅酸 (PbA) 备用电池和12V 至 48V电池组.本文介绍了bq76200主要特性,框图,几种典型应用电路以及评估板bq76200EVM-606主要特性,电路图,材料清单和PCB元件布局图.

The bq76200 device is a low-power, high-side, N-Channel system. A high-side protection avoids ground disconnection in the system and also allows continuous communication between the battery pack and host system. The device has additional P-Channel FET control to allow low-current pre-charge to a deeply depleted battery, and a PACK+ voltage monitor control for the host to sense the PACK+ voltage.

The independent enable inputs allow CHG and DSG FETs to be turned on and off separately, offering great implementation flexibility in battery systems.

The bq76200 device can be used with a companion Analog Front End device such as the bq76920/30/40 family, a 3-series to 15-series Cell Analog Front End Monitoring, and a host microcontroller or dedicated state-of-charge (SOC) tracking gas gauge device.

bq76200主要特性:
..

查看全文