Full bridge LLC controller IC

I am confused by your post. The title reads Full bridge LLC controller IC, while the post itself talks about LM5122 and multi phase. What do you want? a multi phase boost controller, or something else? For dual phase boost controller for higher power, you may consider the LM5170-Q1. It is a bidirectional controller but you can use it for boost only, with accurate power sharing between two phases. And it is stackable for more phases.

Dear Mr. Xi,

Sorry to confuse you for the question. I originally ask Ti support about using LM5122 for multiple phase controller applied to multiple phase DC/DC. TI support told me I may changes topic to ask full bridge LLC control from some TI technical support.

My application is for solar panel converter from one level DC to standard DC voltage (200V/400V). Due to using multiple phase of full bridge, I need a controller to complete this target. I have checked TPS40090. But it is used for buck regulation. My application is close to Sepic application which sometime is boost and some time is buck.

Thank you for your looking to this case.

Johnson

What is your power level?

500W

Thanks,

TI,

What is your suggestion??

Johnson

TI,

You can not leave a case as open like this! I have replied the question you need and if you have further questions, you can continue to ask but you cannot keep no answer to it.

Johnson

Hi Johnson,

Sorry for the delay: somehow your previous posts did not show up on my radar.  For your 200V to 400V, 500W application, the LM5122 is not a right choice.  The LM5122 is rated for up to 100V application, and it is designed for sync boost converter.  The suggestion of using a full bridge converter is a good one.  You may consider to use UCC28950 in a full bridge controller.

Please submit a post with UCC28950 and the right engineer will be happy to support you.

Best Regards,

Youhao

Thank you very much! Youhao Xi,

I will

Best regards,

Johnson