This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

急!BQ500211A实现不了FOD功能?!

Other Parts Discussed in Thread: BQ500211A, BQ500211

  

               设计了一个移动电源+无线充电产品,做了WPC 1.0.3和1.1标准.BQ500211时工作正常,BQ500211A时不能调通FOD功能,其他功能正常.

       具体描述:跟正常的WPC1.1产品比较后发现,PWM一直是持续工作的,接触到金属后不能停止无线发射.

               外部电路已经详细查过,PIN43接的是200K oHM 电阻!  请帮忙分析下....

              附件是原理设计.