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如何判断BQ40z80是否为工作还是故障状态?

Other Parts Discussed in Thread: BQ40Z80

最近学习使用BQ40Z80芯片,打了pcb板, 自己在网上(淘宝)买了两个bq40z80芯片贴上,接电池后无任何反应,用ev2300通信也一直通信不上。想请问如何判断这两个芯片是正常还是有问题的?正常的芯片激活流程是怎样?能不能量某个管脚来判定芯片是不是好的?