TPA3100D2: PWM Frequency?

Alice57

Intellectual 1730 points

Part Number: TPA3100D2

Hi Support Team,

Could I know the PWM frequency of the TPA3100D2?

Best regards.

over 7 years ago

0 Jeff Kohnle over 7 years ago

TI__Expert 6985 points

Thank you for your message! Shawn can help you with your question. Also, are looking for the recommended switching frequency (200 kHz to 300 kHz) which is configuration dependent and how to configure? Thanks, Jeff

0 Alice57 over 7 years ago in reply to Jeff Kohnle

TI__Intellectual 1730 points

Hi Jeff,

Thank you for the reply, all problem solved!

Thanks.

0 Shawn Zheng over 7 years ago in reply to Alice57

TI__Mastermind 24835 points

Hi Alice,

The resistor connected to the ROSC terminal controls the class-D output switching frequency using the following equation:

F=1/(2*ROSC*COSC)

COSC is an internal capacitor that is nominally equal to 20 pF. Variation over process and temperature can result in a ±15% change in this capacitor value.

Best reagards,

Shawn Zheng

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TPA3100D2: PWM Frequency?