TMP513: TMP513 Vin+/- connection

user4979899

Expert 3080 points

Part Number: TMP513
Other Parts Discussed in Thread: LM5121,

Is it possible to share a shunt resistor between LM5121 and TMP513?

over 6 years ago

0 kai klaas69 over 6 years ago

Guru 140200 points

Hi Anne,

yes, this is possible. But too noisy and spiky currents through the shunt may pose a problem to the TMP513. Use input filtering as shown in figure 30 of datasheet of TMP513. The LM5121 will profit from input filtering as well. Have a look at figure 39 of datasheet of LM5121.

Kai

0 Ren Schackmann over 6 years ago

TI__Mastermind 39195 points

Hi Anne,

I don't see any issue with this from the TMP513's perspective. I'll try to get additional input from the team responsible for LM5121.

Thanks,
Ren

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TMP513: TMP513 Vin+/- connection