Part Number: LM5171
你好,我用LM5171设计一个BOOST电路,我外围按照DEMO的原理图设计,EN=3.3V,dir-0V,VCC VDD VREF的电压正常,LO有PWM波输出,HO和SW之间永远为0V,没有PWM输出,这是怎么回事
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Part Number: LM5171
你好,我用LM5171设计一个BOOST电路,我外围按照DEMO的原理图设计,EN=3.3V,dir-0V,VCC VDD VREF的电压正常,LO有PWM波输出,HO和SW之间永远为0V,没有PWM输出,这是怎么回事