I build a circuit for LED driver using TPS92513HV. The circuit is same as the typical application in datasheet, just different at output current. The input current stays at same level when I increase the input voltage. But I measured the Visense, it is 300mA and Vph is switching. When the input voltage increases, the peak of Vph increase and the duty cycle decreases. The brightness of LEDs does not change with the input voltage. Every parameters I measured are correct. I don't know why input current does not drop?
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