TPA1517: Output capacitor spec

Yen Ting Chu

Part Number: TPA1517

Dear Team,

May I know what is the spec for TPA1517 output capacitor (COR)? What is the minimum capacitance and withstand voltage for the capacitor? Is it possible to use capacitor with smaller capacitance and withstand voltage? Thanks.

Best regards,

Andy Chu

over 7 years ago

0 kai klaas69 over 7 years ago

Guru 140200 points

Hi Yen,

its wise to make the output caps withstand the full supply voltage in the event of a damage of output stage.

The output cap and the speaker load resistance form a high pass filter. If you decrease the output capacitance, then you will get a higher corner frequency of high pass filter. So, the lower frequencies of music are reproduced worse.

Kai

0 Shawn Zheng over 7 years ago

TI__Mastermind 24835 points

Hi Andy,
Kai's answer is perfect. Please follow the datasheet recommendation as much as possible.
Best regards,
Shawn Zheng

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TPA1517: Output capacitor spec