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UCC21222-Q1: UCC21222-Q1_ Internal Resistance Tolerance value

Part Number: UCC21222-Q1

Hello,

What would be the tolerance of the Internal resistors at the pins INA, DIS & INB?

Internal resistance values:

INA   ==>  200K   ==>  tol ?

DIS   ==>  50K     ==>  tol?

INB   ==>  200K   ==>  tol?

Waiting for valuable reply. An immediate reply is always appreciated.

Regards,
Prajeesh

  • Hi, Prajeesh,

    These resistors are meant to keep the inputs in a known state if there is a problem with the driving circuitry.

    The resistance value isn’t guaranteed, but a good rule of thumb is +/-20%.

    Please pay particular attention to the DT pin. If not correctly used, you can see issues in your system. We recommend a noise filtering cap on that pin to prevent issues. Please read and follow the data sheet recommendations.

    Let us know if you have further questions. If this answered your question, please press the Green button to let us know. Thank you and have a nice day!

  • Thanks for your reply. 

    Regards,

    Prajeesh