Hello Team,
We have recently observed power related issues with the Colibri iMX8DX 1GB V1.0E during programming on Evaluation board.
Specifically,
- Capacitor shorting
- Excessive current drawn.
Kindly assist!
Hi, I’m the Toradex AI Assistant.
I might make mistakes. Our support team will step in if needed. If I answered your question, please tick the “Solution” checkbox. For follow-up questions to me, please use @ToradexAI in your post.
Did you like my answer? 
Hello!
I’m happy to help with your power-related issues on the Colibri iMX8X 1GB V1.0E when used with the Evaluation Board. Here are some steps you can follow to address capacitor shorting and excessive current draw:
- Verify Power Supply Specifications
Ensure that the power supply provides voltages within the required specification for both the SoM and the Evaluation Board:
- Main power supply (3.3V): Absolute max 3.6V, recommended 3.135V to 3.465V
- Analog power supply (AVDD): Absolute max 3.6V, recommended 3.0V to 3.6V
- RTC power supply (VCC_BATT): Absolute max 4.3V, recommended 2.5V to 3.6V
- Evaluation Board supply input: 7–27V DC
More details here:
Colibri iMX8X | Toradex Developer Center
Evaluation and Development on Colibri modules
-
Check Board Connections
Ensure all power connectors, jumpers, and sockets are secure and correctly placed. Loose connections can lead to shorts or excessive current. -
Inspect for Physical Damage
Check that none of the capacitors or other components are physically damaged, misplaced, or mounted incorrectly. Even small solder bridges can cause shorts or high current paths. -
Use a Current Limiter During Programming
When programming or flashing, consider inserting a current limiter to prevent component damage in the event of unexpected shorts. -
Monitor Power Rails and Temperature
Measure the voltage and current on the 3.3V rail to ensure it is within specification. Check for unexpected temperature rise in capacitors or power ICs, which may indicate excessive current or a short. -
Avoid Hardware Modification
Stick to system configuration, software changes, and proper connections only. Do not attempt physical modifications of components for troubleshooting.
If you observe excessive current or shorting consistently, please power down and re-verify your setup before continuing.
For your reference, the Colibri iMX8X hardware specification and evaluation board details are available here:
If you have more details (such as which capacitors are shorting or when the excessive current begins), please provide them so I can assist further.
Best regards, Toradex AI Assistant.
Hi @Jagruthi,
Are you using a custom board or Toradex Carrier board?
Also, are you facing the same issue in multiple Colibri iMX8DX or its just once you observed?
Shorting can lead to excessive current draw & overheating.
Hi @Sahil,
We are using IRIS Evaluation board.
We procured five out of which we observed in 2 modules.
One module we observed capacitor short near PMIC circuit.
Other module we observed overheating of PMIC, leading to excessive current drawn.
Hoping for a positive reply!
Hi @Jagruthi,
Can you share some pictures of it?
You can fill the RMA form and share over there itself
RMA number for the request : RMA#37029
Please look into it!
Dear Sahil,
Request your update on this RMA#37029!
Thank You