TPA6404-Q1: Battery short to OUTM and OUTP protection

Amelie Zheng

Part Number: TPA6404-Q1

When using in 24V system, if the 24V battery connect to OUTP and OUTM pin accidentally. Does TPA6404 have protection to avoid damaging the TPA6404?

Besides the above question, do we have more detailed internal block diagram? Customer said it is too simple in datasheet as following:

0 Yanming Gong over 3 years ago

Hi Amelie,

Firstly, TPA6404 has DC diag, it can detect short load error.

Second, there will be OC fault report if short load happen when play.

Which detail information customer want to know?

Regards,

Derek

0 Amelie Zheng over 3 years ago in reply to Yanming Gong

Hi Derek,

In customer's test, when they connect 24V to OUTP or OUTM, the chip was damaged at once.

It seems that no protection inside the chip when output shorted to battery.

May I ask when output shorted to battery, could TPA6404 provide some time for customer to shunt down the chip in order to protect?

Thanks!

0 Yanming Gong over 3 years ago in reply to Amelie Zheng

Hi Amelie,

Let me send to your e-mail for more detail information discussion.

We can also have a telephone call.

Regards,

Derek

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