Power supply for Orin AGX Dev kit

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

Hi,

I want to power the Jetson AGX dev kit with a industrial SMPS i use for my on field tests/POCs. something like Mean Well LRS-150-15 SMPS (15V 10A) via the barrel jack.

I have 2 questions regarding this:

  1. Previously while using the Xavier AGX dev kit I faced stability issues while powering it by such means (I had used 12v 10A smps for this via barrel jack). The power supplies could not handle sudden serge/fluctuations in the power requirements. The forum at that time suggested to use 19.5V adaptors as the fluctuation in the current requirement wont be as drastic due to higher voltage. This solved my stability issue at that time but industrial power supplies aren’t easily available at 19.5v. So are there any such known issues with the Orin devkits for power supplies of lower voltages?

  2. if the above method doesn’t work, can is use a similar industrial SMPS to power it via the usb-c port. what are its power requirements?

Edit1: will powering it this way affect functionality of other ports like the USB, eth or especially PCIe which I intend to use.

2

Hi,

If you are designing a custom base board, then it means some adaptation configurations are needed.
Otherwise, your board may not work fine.

For Orin AGX series, you could refer to below document
https://docs.nvidia.com/jetson/archives/r36.3/DeveloperGuide/HR/JetsonModuleAdaptationAndBringUp/JetsonAgxOrinSeries.html?highlight=universal%20serial%20bus#jetson-agx-orin-platform-adaptation-and-bring-up
(please be aware that above link is for rel-36.3/jetpack6.0)

This document includes below configuration

  1. pinmux change & GPIO configuration
  2. EEPROM change as most custom boards do not have an EEPROM on it.
  3. Kernel porting
  4. PCIe configuration
  5. USB configuration
  6. MGBE configuration
  7. RGMII configuration

Thanks!

3

Hi, thanks for the prompt response.

I currently do not intend to develop my own carrier board. I will use the dev kit until my POCs are successful. will then move to other off the shelf carrier boards from other reputed OEMs.

This question is in regards to the Devkit as is.

5

A stable power supply is necessary. For Orin devkit, the power supply should be in the range of 7 ~ 20v. There is no “higher voltage level for stability” on Orin devkit anymore.

6

Okay. thanks for the inputs. Will test with this power supply and update this chain for the benefit of others.

8

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