按规格书的原理图设计的电路,RIADJ为3.3KΩ,精度为1%,DIM设置的频率为72KHz,设置最大占空比为80%,开关频率为1M,但做出来的板子,输出电流差异很大,最大能达到40mA,这是什么问题造成的呢?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
按规格书的原理图设计的电路,RIADJ为3.3KΩ,精度为1%,DIM设置的频率为72KHz,设置最大占空比为80%,开关频率为1M,但做出来的板子,输出电流差异很大,最大能达到40mA,这是什么问题造成的呢?