LM5022: About soft start

Lee, Sam

Part Number: LM5022

Hi team,

In LM5022 datasheet, there is no detailed desription for soft start. Can you provide the equation of SS and min/max spec?

Thanks,

Sam Lee

0 Jing Ji over 7 years ago

Hi Sam
You can change Css to control SS time. an internal 10uA current ource charges Css to make Vout increase slowly.

0 Lee, Sam over 7 years ago in reply to Jing Ji

Hi Jing,

Thank you for your reply. A customer needs the equation for SS time. Can you please let me know the equation?

Thanks,

Sam Lee

0 Jing Ji over 7 years ago in reply to Lee, Sam

Hi Sam

the SS time is depend on working condition. the max SS time=5Css/10u; the min SS time=1.4Css/10u

It is hard to give you an accuracy equation. if you want to know the accuracy SS time, you can test in EVM to get a SS time.

Thanks

Jing

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