LM5022: LM5022 for wide-input question

Micky Shih

Part Number: LM5022
Other Parts Discussed in Thread: LM5020

Hi all,

There is currently an application of a wide input range isolate DC-DC converter
Vin is -30V ~ -100V
Vo is 12V
Po is 100W

I want to use Flyback Converter. It is currently believed that IC LM5022 can be used.

Are there any suggested circuits or other ICs for reference? Thanks.

Input OVP and output OVP is latch.

thanks

Micky

0 Yinsong Cai1 over 4 years ago

Hi Micky,

Thank you for your interest in LM5022. You may want to consider LM5020. LM5022 only supports up to 60V input voltage.

Thanks,

Yinsong

0 Micky Shih over 4 years ago in reply to Yinsong Cai1

Hi Yinsong,

Except for Vin, what is the difference in performance between the two ICs?
Is there any LM5020 related design for reference?

Thanks,

Micky

0 Yinsong Cai1 over 4 years ago in reply to Micky Shih

Hi Micky,

Here are some major differences. Please check the datasheet for the details.

I don't think we have LM5020 reference designs close to the spec. You can post another thread on LM5020 for further support.

Thanks,

Yinsong

0 Micky Shih over 4 years ago in reply to Yinsong Cai1

OK! thanks!

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