我用TPS65640做了一个LED驱动,其他正电压输出正常,可以控制,唯独VGL负电压配置寄存器后没有输出电压,请问下各个专家是怎么回事呢?电路图如下所示
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我用TPS65640做了一个LED驱动,其他正电压输出正常,可以控制,唯独VGL负电压配置寄存器后没有输出电压,请问下各个专家是怎么回事呢?电路图如下所示