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使用bq24170evm-610-15v评估模块出现问题(急)

Other Parts Discussed in Thread: BQ24170EVM-610-15V, BQ24170

使用bq24170evm-610-15v评估模块出现问题,不能给单节锂电池充电,过程和现象如下,请帮助分析一下,谢谢!

按照手册上(SLUU463-2010)上第6-7页描述,配置如下:

JP1:2-3

JP5:1-2(1Cell)

JP3:OPEN

JP2:ON

JP4:ON

Vin=8.02v

测量值如下:

Vref=3.29v

Vregn=5.975v

Vbat=0.846v(问题就在这里,与手册上写的4.2v不符,怎么都出不来4.2v,why?)

D1:blink

其他测试点此时电压如下:

Vovpset=0.68v

Vcmsrc=7.737v

Vttc=1.243v

Viset=0.403v

Vacset=0.46v

Vavcc=7.749v

Vts=2.8v

Vacdrv=13.62v

Vbatdrv=8.02v