TAS5822MEVM: EVM had overload issue.

Kevin Huang8

Genius 4736 points

Part Number: TAS5822MEVM
Other Parts Discussed in Thread: TAS5822M

Hi Team,

When using the power supply to test the EVM, the power supply will be over-current protection,

Measure the impedance of J9(PVDD) and J10(GND) with a multimeter, it is close to high impedance,

board is damaged. Or how to connect the EVM?

0 Wei Qiu over 2 years ago

Hi Kevin.

You can first follow the steps in the user guide of below link:

If still have questions, maybe you should change another board.

BR.

Wei Qiu.

0 Jack lin over 2 years ago in reply to Wei Qiu

HI Wei Qiu

I have tried a power supply (Maximum current limit 7A) and it can work

The EVM actual output is about 0.5A (NO SPEAK)

I have tried another power supply (Maximum current limit 3A)

The power supply is Over Load

Is it caused by

TAS5822M D.S P74

8.2.2.2.2 Inductor Selections

OCP?

0 Wei Qiu over 2 years ago in reply to Jack lin

Hi Jack.

Did the over load happened at the timing of change AMP's state from Hi-Z/Sleep to play?

If so, it may caused by startup current. Please help to provide the waveforms of output_P/N, current of inductor.

BR.

Wei Qiu.

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