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Original question:

PMP8944: Inductor current rating

PMP8944: Operating frequency

Sarumathi R
Intellectual 480 points

Part Number: PMP8944

Hi team,

In PMP8944 reference design 200kHz is the operating frequency.

But UCC2897 has the minimum operating frequency as 225kHz.

Will it create any problem ?

Please share your comments as soon as possible 

  • 0
    TI__Expert 6080 points

    Hello Sarumathi,

    There is generally a window of 5% to 10% on the operating frequency range as mentioned in the datasheet. As you can see in the Switching frequency vs programming resistor graph (Figure9) the controller is tested to work for a whole range of frequency. It will not be a problem.

    Regards,

    Sonal