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UCC21520: Phase-shift Full Bridge Topology Noise Help

Part Number: UCC21520
Other Parts Discussed in Thread: UCC28951,

Hey Team,

I have a customer that is using several TI chips, but is having noise troubles with the UCC28951 and UCC21520. It seems that the UCC21520 is not able to pull the low-side transistor fast enough, which is causing shoot-though when the high-side transistor is turning on. 

Could we have some assistance with the phase-shift full bridge topology? Thank you.

Best,
Dajon McGill