LP-AM243: PWR ERR Led

RodneyFarrow

Part Number: LP-AM243
Other Parts Discussed in Thread: TUSB320

Hi Guys

Following quick start guide for LP-AM243, at power on stage instructions say you should see LD6, LD7 LD8 illuminate, i am getting PWR ERR?

Thanks

Rodney

over 4 years ago

0 Sahin Okur over 4 years ago

TI__Mastermind 27355 points

Hi Rodney,

You will need to use a 5V/3.0A power supply, a regular USB-C cable may not supply enough current.

We recommend a power supply like this one: https://www.digikey.com/en/products/detail/raspberry-pi/RPI-USB-C-power-supply-Black-US/10258759

Regards,
Sahin

0 JingQuan Li over 4 years ago in reply to Sahin Okur

Prodigy 10 points

I used the same power supply, but it did not work properly, still PWR ERR.

I found by checking the schematic, seems to be controlled by tusb320, which requires the upstream adapter needs to PD?

0 RodneyFarrow over 4 years ago in reply to JingQuan Li

TI__Expert 5230 points

I purchased the Raspberry Pi 4 Model B Official PSU, USB-C, 5.1V, 3A, EU Plug - Black and it did work.

I do find that you need to apply fair pressure when inserting the connector into the LP till you feel a positive click, the first time inserted the connector the red led still came on until I push a bit harder and felt the positive click and then the 3 green LEDS come on.

Thanks

Rodney

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LP-AM243: PWR ERR Led