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LM5022 Flyback design

Other Parts Discussed in Thread: LM5022

Hi Team,

Considering using LM5022 in a Flyback design, Vin 6-36V, Vout 15V @ 3A.

Can we expect trouble if we try and generate RT/SYNC in an FPGA powered by the PSU’s next stage +3V3 buck. We’ll make the FPGA tristate until its power and configure is good, and we can stop it gracefully after a falling clock edge when we power down. Basically clocking and transition over between RT/fixed resistor and FPGA sync during FPGA power up/down.

 

Light load operation and if there is a mini load requirement for LM5022 to perform.

 

Any tips on compensation loop design if needed to switch between CCM and DCM.

 

Magnetics tips/recommendation for high switching operation close to 1Mhz.

 

Thanks,

Jani