Isolated flyback 24V to 24V 1A: LM3481 vs. LM5022 vs. TPS40210?

Marc Schuman

Other Parts Discussed in Thread: TPS40210, LM3481, LM5022

I'm designing an 18-30 VDC input, 24V @ 1A output isolated power supply. Flyback seems like the best topology for this application. The LM3481, LM5022, and TPS40210 all seem like they might be a good fit for the controller IC. Can anyone provide opinions as to which would be best, advantages, disadvantages?

over 9 years ago

0 Peter Meaney over 9 years ago

TI__Mastermind 31580 points

Hi Marc,

The LM5022 does have a reference design that is excatly what you are looking for, www.ti.com/.../PMP10856

I am not familar with the LM3481 and TPS40210 as these parts numbers are not supported by my product line but I am sure they can also be used to implement the design for your application. The lowest risk approach would appear to be the LM5022.

Regards

Peter

0 Marc Schuman over 9 years ago in reply to Peter Meaney

Intellectual 750 points

Thanks Peter!

If anyone has experience with the LM3481 vs. the LM5022, I'd be very interested. (We already are using the LM3481 in another product, so if it would work as well as the LM5022 for this application, I'd just as soon stick with it. But if the LM5022 had some advantage, then I'd use it).

0 Peter Meaney over 9 years ago in reply to Marc Schuman

TI__Mastermind 31580 points

Hi Marc,

Can I move your post to the simple swicther forum, looking at previous e2e posts that wher most of the LM3481 questions have been answered?

Peter

0 Marc Schuman over 9 years ago in reply to Peter Meaney

Intellectual 750 points

Sure.

Power management

Power management forum

Isolated flyback 24V to 24V 1A: LM3481 vs. LM5022 vs. TPS40210?