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UCC2813-0: About frequency

ryota.sugihara
Prodigy 10 points
Part Number: UCC2813-0

When determining the frequency using "UCC2813PWTR-0", there is a statement in the RC section of the delivery specifications to use the calculation formula below, but I do not know how much variation will occur from this calculation formula.

F=1.5/R・C

The Oscillator Frequency is stated as 46kHz±6kHz, but is it correct to assume that it will vary by this percentage (approximately ±13%)?

I would appreciate it if you could tell me about the variations in frequency.

  • +1
    TI__Guru 51235 points

    Hi,

    There is no characterization at for this formula on the tolerance except at 46kHz. The tolerance in design is expected to be larger than 13% for the whole frequency range, you need to consider ±15% for UCC2813-0 when you design using this device.