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BQ24195无法正常工作的问题

Other Parts Discussed in Thread: BQ24195

BQ24195原理图和寄存器初始化配置如上图所示。现在有以下几点问题:

1.SYS脚(系统电压)的电压跟随电池电压,电池电压3.3V左右,而寄存器配置的最小系统电压为3.5V。

2.插上适配器之后充电电流只有40ma左右,而寄存器配置的充电电流为1024ma。

3.插上适配器,从寄存器里读出来的值都为0x00。拔掉适配器之后读出的值又正常。

以上问题恳请大神解答,很着急,在线等