TMP235: Tmp235 is greatly affected by PFC circuit operation

Rain Wang

Part Number: TMP235

hi TI

Tmp235 is greatly affected by PFC circuit operation，The customer uses a 3kW power supply module to measure temperature. As long as the PFC circuit works, the measured value of tmp235 is very unstable and has a large deviation. Please ask what causes this problem and whether there is a solution. Thank you.

over 1 year ago

0 Josh Wyatt over 1 year ago

TI__Guru* 91146 points

Dear Rain -

Thanks for the post - do you have a schematic to share with the TMP235? Also, how about the layout and any images of the assembly? Those would be helpful to begin to guide you through noise filtering, attenuation or avoidance on the sensor output signal line.

0 Rain Wang over 1 year ago in reply to Josh Wyatt

Expert 1380 points

Dear Josh，

Great， pls give me your emil， thanks.

0 Josh Wyatt over 1 year ago in reply to Rain Wang

TI__Guru* 91146 points

Dear Rain -

my email is: josh.wyatt@ti.com

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TMP235: Tmp235 is greatly affected by PFC circuit operation