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关于理想二极管电路

Other Parts Discussed in Thread: BQ24133

这是BQ24133 datasheet上的电路,Q1、Q2可以实现防反接,请问这个电路的功耗怎样??

TI又没有单独用来实现理想二极管的芯片,LM5050测试过,在1A的时候都有0.3V的电压,这个电压太大了,如果再大,功耗更大