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BQ24172充电芯片在12.28V输入,接1节3.7V锂电池时,ACDRV电压始终是低电平,不充电!

Other Parts Discussed in Thread: BQ24172

参考BQ24172规格书的10.2典型应用图,

设定参数请参阅附件.

现在测试点电压情况如下

1>VREF=3.3V;

2>REGN=5.9V

3>OVPSET=1.29V

4>ISET=0.400V

5>ACSET=0.600V

6>STAT=High,LED熄灭.

7>AVCC=12.00V

8>+VBAT=4.14V

9>ACDRV=4.17V

10>CMSRC=3.147V.

我后续的VSYS负载电路得不到电,无法开展后续的工作,真是愁死人了.

CHG.pdf