DRV632: Does DRV632 can drive 16ohm load

Hi Yang,

I would recommend to use TPA6138A2 instead, this is pin to pin compatible and it's rated for lower impedance loads.
If you need a combined operation for high and low impedance, I would suggest to evaluate both devices in order to decide which is better suitable for your application.

Best regards,
-Ivan Salazar
Applications Engineer

Hi Ivan,

Thanks for your reply. Does it mean that we are not sure whether DRV632 can be used for lower impedance load?

Best regards,

Yang

Hi Yang,

DRV632 is not rated for lower impedance loads, so performance may not meet data sheet specs.
So I suggest to evaluate the device for performance considerations.

Best regards,
-Ivan Salazar
Applications Engineer

Hi Ivan,

thanks for your confirm. We still want to know what's the minimum output amplitude under the condition of VDD=3.3V，Load=16ohm, THD=1%. Could you check it?

thanks.

Best regards,

Yang

Hi Yang,

I'll try on the EVM and report back the results as soon as possible.

Best regards,
-Ivan Salazar
Applications Engineer

Hi Yang,

Attached are the THD+N vs OutVrms numbers for 16 and 32 ohm loads:

Best regards,
-Ivan Salazar
Applications Engineer