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TPA3100D2: Can I use this device to drive a 1 to 2 Ohm load at 1kHz?

Part Number: TPA3100D2


I was wondering if it was possible to drive a 1 to 2 Ohm load at 1kHz since your datasheet doesn't specify anything lower than 4 Ohm loads?

If this is the case, what is the lowest and highest voltage range I can drive such a load? 

Will there be any problems I should be concerned about seeing when doing this?

Thank you,


  • Hi Louie,
    As you mentioned, TPA3100D2 can support as low as 4Ohm in BTL mode according to the datasheet description. But you can use as low as 2Ohm load for PBTL mode. If a less than 2 Ohm load is used, the power efficiency could be low. In addition, the output current can be very high for the very low resistance load, so it's easy to trigger OC protection for the high output power application. Please follow the datasheet recommendation as much possible.
    Best regards,
    Shawn Zheng