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BQ24133 Demo Board问题

Other Parts Discussed in Thread: BQ24133

之前用BQ24133的DEMO 板实验验证是OK 的,后来再次使用的时候发现led D1 指示灯不亮在插入适配器后(测试STAT 电压一直是高),测试其他相关引脚电压都是在正常范围内,然后插入电池后芯片上相关引脚都没有电压了。求指教 (JP1 INT ,JP2 LED ON ,JP3 TTC HIGH ,JP4 CE ,JP5 3CELL)