Other Parts Discussed in Thread: SN6505A
Hi team,
My customer use our SN6505A transformer driver. They found there is high inrush current from VCC during power-up. Please refer to the below waveforms. I also find there is a voltage overshoot in secondary voltage. But this device has soft-start feature to prevent this problem. Could you please help to analyze the causes? Thanks.
BlUE: VCC VOLTAGE 4.65V
GREEN: SECONDARY VOLTAGE 15V
RED: VCC CURRENT
YELLOW: D2 VOLTAGE