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BQ40Z50-R2: 供电引脚BAT与CDRN的问题

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: BQ40Z50

1.BQ40Z50的芯片手册上 CDRN串阻是100R,BQ9003芯片手册上 CDRN的串阻是1K,想问下这个阻值不同有什么影响吗?

2.同时CDRN的串阻的封装有什么要求,0603还是0805,对应引脚的功率怎么计算?

3.BQ40Z50/BQ9003的BAT端串阻是10R,BQ40Z50的CDRN串阻是100R,BQ9003的CDRN串阻是1K,为啥BAT端串阻阻值比CDRN的小?

4.BAT和CDRN都是供电引脚,为啥BAT端增加二极管,CDRN不加二极管?