LMG3522R030-Q1: Series stack of GaN FETs

Rookie.Soybean

Prodigy 80 points

Part Number: LMG3522R030-Q1

Is anybody knows how this "Utilize series stack of GaN FETs on secondary side of CLLLC DC/DC Converter" works?

over 1 year ago

0 Don Dapkus over 1 year ago

TI__Guru**** 189399 points

Hello,

Our office is closed Monday for the US Martin Luther King, Jr holiday. We will get back with you on your question early next week.

Best regards, Don

0 Travis Williams over 1 year ago

TI__Expert 8960 points

Hello,

The output capacitors divide the output voltage so that no fet sees more than half the output voltage. This allows for 650V FETs to be used in an 800V application.

This design uses a half bridge output rectifier, and the current flow looks like this when sending power to DC side:

Thanks,

Travis

0 Rookie.Soybean over 1 year ago in reply to Don Dapkus

Prodigy 80 points

Thanks for your support.

0 Rookie.Soybean over 1 year ago in reply to Travis Williams

Prodigy 80 points

Hallo, Travis, thanks for your explanation.

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LMG3522R030-Q1: Series stack of GaN FETs