TAS5630PHD Ioc(Rocp)

Dear Junho, I have attached a graph showing Iocp vs. Rocp, which you can use for this calculation.  Please note that the minimum value of Rocp is the following.

- For cycle-by-cycle current limiting (continuous limiting without shutdown), 24k.

- For latching current limiting (shutdown immediately with overcurrent), 47k.

Best regards,

Steve.

Junho, it is possible that the preamplifier is driving TAS5630 inputs outside their maximum range (-0.3 to 5 V) when external input is plugged or unplugged.  This can damage the device.  We recommend the following startup sequence to avoid trouble.

1) Connect the audio source to the inputs with the audio source stopped or turned off.

2) Apply VDD, GVDD and PVDD.

3) Bring /RESET high.

4) Apply audio to the inputs when READY is high.

Bullet (4) does not include plugging or unplugging and input, because this can cause transients that drive TAS5630 inputs outside their Absolute Maximum range.  Instead, stop the audio source, bring /RESET low, unplug the audio source and then follow the startup procedure above.

Best regards,

Steve.