Asking for the recommendation to replace PAC1934

SHH

Other Parts Discussed in Thread: INA4181, INA4180, INA3221, INA233

Hi Team,

Customer is looking to replace PAC1934 qual current sense solution. (http://ww1.microchip.com/downloads/en/DeviceDoc/PAC1931-Family-Data-Sheet-DS20005850E.pdf)

Would you please recommend the proper solution for this?

BR,

SHH

over 6 years ago

0 Gerald Steele over 6 years ago

Prodigy 210 points

Oh yes, this is the Microchip device that makes the incorrect claim that no input filtering is needed.

Filtering will often be unavoidable: https://www.planetanalog.com/current-shunt-resistor-inductance-it-matters/

0 Ian Williams over 6 years ago

TI__Mastermind 27715 points

Hello SHH,

As the PAC1934 is a quad digital power monitor, our cross options are pretty limited. Our only multi-channel device of this type is the 3-channel INA3221. Unfortunately the INA3221 does not offer the power accumulator function of the PAC1934, to get that feature you would need the INA233 which is single-channel. Otherwise, you are looking at a more discrete solution with our quad-channel, analog-out INA4180 or INA4181 plus an ADC.

Best regards,

Ian Williams
Applications Manager
Current Sensing

Amplifiers

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Asking for the recommendation to replace PAC1934