LM5122-Q1: LM5122-Q1 current sense pin leakage current when UVLO is OFF

Stephen Thomas

Part Number: LM5122-Q1

I'm considering this device for an automotive 12V application in VBAT line I'm concerned about sleep current.

In sleep case i will turn OFF UVLO pin ( i.e. short to GND in my case ). At this time also whether there will be any leakage current on the current sense pins . .ie. CSN and CSP According to datasheet some 11uA/12uA figure is mentioned . Please confirm.

Regards
Stephen

over 3 years ago

0 Brigitte over 3 years ago

TI__Guru 58215 points

Hello Stephen,

This is the bias current during operation. Let me clarify the leakage current during shutdown.

0 Richard Fu22 over 3 years ago in reply to Brigitte

TI__Genius 17560 points

Hi Stephen,

We currently do not have the data on hand regarding CSP/CSN pin leakage current during shutdown. If you need to calculate current draw during sleep, you can use the 11uA/12uA as a worst case approximation.

Thanks,

Richard

0 Stephen Thomas over 3 years ago in reply to Richard Fu22

Intellectual 710 points

Hi Richard,

Thank you for the confirmation. 11uA/12uA may be little more for my application. I will check.

Thanks & Regards,

Stephen

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LM5122-Q1: LM5122-Q1 current sense pin leakage current when UVLO is OFF