LM57-Q1: LM57 Rsense1 or Rsense2 short GND

kerr chang

Genius 4075 points

Part Number: LM57-Q1
Other Parts Discussed in Thread: LM57

Hi Team

If LM57 Rsense1 or Rsense2 short to GND. What temperature will be show or What will happened

over 6 years ago

0 Kelvin Le THS over 6 years ago

TI__Expert 6595 points

Kerr,

Allow me a few days to look into this.

-Kelvin

0 SHH over 6 years ago in reply to Kelvin Le THS

TI__Mastermind 30756 points

Hi Kelvin,

Please help.

Thanks,

Scott

0 Kelvin Le THS over 6 years ago in reply to SHH

TI__Expert 6595 points

Hi Scott,

My understanding is that it will saturate to 150C trip point and the gain will be J5 (-12.924 mV/°C). One of my colleagues is testing it in the lab. I will check with him again.

-Kelvin

0 Kelvin Le THS over 6 years ago in reply to Kelvin Le THS

TI__Expert 6595 points

Scott,

Grounding the Rsense1 or Rsense2 will set the trip point to 150C and the gain will be J5 (-12.924 mV/°C).

-Kelvin

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LM57-Q1: LM57 Rsense1 or Rsense2 short GND