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DRV603: maximum current limiting

Derrick Kickel
Prodigy 230 points
Part Number: DRV603

Hi team,

I have a few questions regarding DRV603 output loading. The datasheet states maximum output current is 20mA (typ) - is this peak current? Or continuous DC?

What is the minimum resistance value required on the output of DRV603 for reliable operation if the output were shorted indefinitely and input signal drove full output?

Basically, can DRV603 continuously sink current into a current limiting resistor and what would be the minimum resistance to ensure the device does not fail, overheat and get damaged (or trip internal short circuit protection).

Thanks for the support in advance!

  • 0
    TI__Guru* 88325 points
    Hi Derrick,

    20mA is maximum output current. The output can be providing 20mA continuously but if this happens the output will be most likely clipping continuously as well.
    Minimum resistance will depend on output range you're working with. Eg, if output is 4-V maximum then you should use loads higher than 200-Ohm to stay within the current limit.
    You must stay within the spec limits to prevent the device to get damaged.

    Best regards,
    -Ivan Salazar
    Audio Applications Engineer - Low Power Audio & Actuators