Other Parts Discussed in Thread: LM5156
I designed a sepic converter using LM5156. Do you have any suggestions for setting the soft start time?
What is the gate voltage,is Vcc ?
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Hi Lin,
Thanks for using the e2e forum.
The recommended softstart time highly depends on the chosen output capacitance. All output caps should be fully charged without overcurrent spikes before the softstart is finished. For calculating softstart values, you can use our LM5156 quickstart calculation tool:
https://www.ti.com/tool/download/SNVR481
Yes, the gate voltage comes from the VCC voltage.
Best regards,
Niklas