LM5045: Can we use LM5045 controller with secondary diode rectification ?

Jenny Lu69

Expert 1810 points

Part Number: LM5045

Hi,

Can we use LM5045 controller with secondary diode rectification ?

Thanks & Best Regards

0 John Griffin1 over 7 years ago

Yes you can use this part with diode rectification.

Just leave SR1,SR2 pins disconnected

Regards

John

0 Jenny Lu69 over 7 years ago in reply to John Griffin1

Expert 1810 points

Hi John,

Thanks for your direction.

We have connected two driver transformers to LM5045 outputs HO1,LO1 & HO2,LO2 to drive both high side and low side bridge MOSFETS, to protect IC in case of MOSFET failure.
Connected BST1 , BST2 to 12V Vcc directly.
Connected HS1,HS2 to ground.
Please confirm that above connection are OK?

Thank you indeed.

Regards

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