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  • Resolved

TPA3244: Unused channels

Expert 6245 points
Jared Becker

Part Number: TPA3244

Hi Team,

If I am configuring the TPA3244, what should i do with inputs and output that are not used? If I am driving one speaker or transducer with a single-ended output, should I ground the unused inputs and outputs, or leave them floating?

Any guidance you can provide would be greatly appreciated.

Thank you!

Jared

Expert 6245 points
Jared Becker
  • Mastermind 23235 points
    Shawn Zheng
    Hi Jared,
    If only one channel is used, you could set the amp in PBTL mode - Figure 25 and Figure 26 in the datasheet show this kind of application. If you still want to use the device in BTL mode(Figure 23), you could remove the output circuit on the unused channel but keep the bootstrap caps.
    Best regards,
    Shawn Zheng

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