Jetson Orin Nano SOM Power Requirements

Issue Overview

Users are experiencing confusion regarding the power requirements for the Nvidia Jetson Orin Nano System on Module (SOM). The official datasheet specifies a requirement of 5V at 3A, totaling 15W. However, several forum discussions indicate that the voltage requirements may range from 9V to 20V. This discrepancy leads to uncertainty about whether the SOM itself requires the higher voltage or if it is solely related to the carrier board’s specifications.

The issue typically arises during setup when users are preparing to power their Jetson Orin Nano systems. Some users may be concerned that using only 5V could lead to inadequate performance or even damage to the hardware. The inconsistency in reported voltage requirements can significantly impact user experience, as incorrect power supply configurations may prevent the system from functioning correctly.

Possible Causes

• Hardware Incompatibilities: Users may be using power supplies that do not meet the required specifications, leading to operational issues.

• Software Bugs or Conflicts: If the device firmware does not properly recognize the power input, it may lead to erroneous behavior.

• Configuration Errors: Incorrect setup or connection of power supplies could result in insufficient or excessive voltage being supplied.

• Driver Issues: Outdated or incompatible drivers might not handle power management correctly, causing performance problems.

• Environmental Factors: Variations in temperature or unstable power supply could affect system stability.

• User Errors or Misconfigurations: Users might misinterpret the datasheet or fail to consult relevant documentation regarding power requirements.

Troubleshooting Steps, Solutions & Fixes

1. Verify Power Supply Specifications:

   • Ensure that you are using a power supply that provides 5V at a minimum of 3A for the Jetson Orin Nano SOM.
   • If using a carrier board, confirm that it supports input voltages between 9V and 20V.

2. Check Connections:

   • Inspect all connections between the power supply and the Jetson Orin Nano module.
   • Ensure there are no loose connections or damaged cables.

3. Use a Multimeter:

   • Measure the output voltage of your power supply with a multimeter to ensure it is within the specified range.
   • Check for voltage drops under load conditions.

4. Consult Documentation:

   • Review the official Nvidia datasheet and user manual for any updates regarding power requirements.
   • Look for any errata or notes about specific configurations needed for different setups.

5. Test with Different Power Supplies:

   • If possible, test with another compatible power supply to determine if the issue persists.
   • Note any differences in behavior when using different voltage inputs.

6. Update Firmware and Drivers:

   • Ensure that your Jetson Orin Nano is running the latest firmware and drivers.
   • Check Nvidia’s website for any updates related to power management.

7. Monitor System Behavior:

   • After confirming correct power supply and connections, monitor system behavior for stability during operation.
   • Use diagnostic tools available in Jetson Linux to check for any errors related to power management.

8. Best Practices:

   • Always use a regulated power supply that meets or exceeds specified current ratings.
   • Avoid daisy-chaining multiple devices unless they are designed to share power safely.

9. Seek Community Support:

   • If issues persist, consider posting detailed symptoms and troubleshooting steps taken on forums dedicated to Nvidia Jetson products for community assistance.

By following these steps, users can effectively diagnose and resolve issues related to the power requirements of the Nvidia Jetson Orin Nano SOM.