TAS3251: Could junction temp info be send over I2C?

Frank Rothoff

Part Number: TAS3251

Hi Team,

Just got request of customer.

We are currently having some issues with some subwoofers using your TAS3251 Amplifier. We would like to track the junction temperature of the chip, which is used internally for overtemperature-Warning/-Error signaling on the FAULT pin. Do you know if there is some kind of hidden register to read out the temperature via I2C? Would be very helpful.

Best regards,

Frank

over 1 year ago

0 Shadow He over 1 year ago

TI__Mastermind 31540 points

Hi Frank

I'm sorry that TAS3255 can't do that. Because this device won't send the temperature sample to ADC, so the digital part can't know the detailed temperature value. Only Analog part will use the temperature sample to trigger Warning or Fault event.

0 Frank Rothoff over 1 year ago in reply to Shadow He

TI__Expert 6040 points

Hi Shadow,

Please confirm if your referral to TAS3255 is a typo or not.

+1 Shadow He over 1 year ago in reply to Frank Rothoff

TI__Mastermind 31540 points

Hi Frank

Sorry it's a typo, there's no TAS3255 device. I was trying to say TAS3251.

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TAS3251: Could junction temp info be send over I2C?