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TPS92513HV PDIM脚输入PWM调光信号时,启动过程中,输出电流有严重过冲!

Other Parts Discussed in Thread: TPS92513EVM-001

TPS92513HV做个DC-DC LED驱动时,在设计过程中发现的问题。

此IC,在PDIM脚上输入占空比为非100%的PWM调光信号时,启动时,输出电流有严重过冲现象!

下图是PWM调光信号占空比为20%时,启动时,输出电流的波形图。

      请问有用过此IC的大神或TI相关的FAE,上述问题,能通过调整IC外围解决吗