TI中文支持网
TI专业的中文技术问题搜集分享网站

BQ76952: BQ76952的LD引脚电压低

Part Number:BQ76952Other Parts Discussed in Thread: BQSTUDIO

您好,BQ76952做的16串管理系统,LD引脚电压正常情况应该是与BAT+一致大约(50V),实际上万用表量到的电压是15V,bqstudio采集的电压显示是20V,请问如何解决呢?

Star Xu:

您好,请参考下面的内容

From what I can see from reading the datasheet and technical reference manual (TRM). This voltage is from a current-source in the LD pin activated after OCD/SCD protections are triggered. If a load with low impedance is connected, the pin will generally be held low below the 4-V line. If a load is disconnected the LD pin will tend to pull high, and recovering from the protections. See Section 5.2.18 Load Detect Functionality of the TRM and Section 11.6 Load Detect Functionality of the datasheet.

赞(0)
未经允许不得转载:TI中文支持网 » BQ76952: BQ76952的LD引脚电压低
分享到: 更多 (0)

© 2024 TI中文支持网   网站地图 鲁ICP备2022002796号-1