LM5145: sinking current out of COMP pin

Keith Keller

Part Number: LM5145

Hello,

We are designing a battery charger circuit using the LM5145 and trying to pull down on the COMP pin to control current.

We're wondering how much current we need to sink in order pull COMP low?

Thank you, Keith

0 Timothy Hegarty over 5 years ago

Hi Keith,

It's in the range of 3-5mA. Recommendation is to adjust the current into FB instead of adjusting COMP, see here as an example:

Regards,

Tim

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