手册里面没有说明芯片输出的最低电压,我现在驱动一个LED,输出电压3.3V
LED无法工作,请问一下LM3409能不能输出3V的电压
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我需要以下波形以及输入/输出要求和开关频率:
Inductor current
Switch node voltage
Input voltage
Output voltage
any other wave forms that provide me information on the issue that is occurring
你的波形应该与我下面发布的波形相似。这是TPS92682EVM的波形
绿色是Coff引脚电平,黄色是Pgate引脚电平,驱动PMOS得电平没有保持住,
原理图这样得,现在EN引脚直接接的VCC
你能把我要求的信息发过来吗?我真的需要它来帮助你。..
我会说,看起来你的转换器退出了,但老实说,我无法知道
我需要以下波形以及输入/输出要求和开关频率:
Inductor current
Switch node voltage
Input voltage
Output voltage
any other wave forms that provide me information on the issue that is occurring
你发过来的波形应该与我下面发布的波形相似。