STM32G071CBT7 overcurrent

[SJKwon]

Hello, I am an engineer developing a board using STM32G071.

Currently, I am using all pins of the MCU, SPI, I2C, and GPIO, but one of the products is overheating and overcurrent is occurring.

The existing consumption is 30mA, but the problematic product consumes 110mA. I would like to inquire about which pin of the MCU can cause overcurrent to flow.

Or, if you tell me a case where overcurrent can occur in the STM32G071, I will check it out.

[LCE]

Have you checked the package pins for any shorts?

Same with any external loads? E.g. pull-ups / downs, power, filter caps, ...

[SJKwon]

This issue does not occur on all boards that utilize MCU.

This is an issue that occurred during a restart while in use.

[Andrew Neil]

If it only happens on one board, that suggests there is a fault on that board.

So carefully inspect that board for:

• Shorts or solder bridges
• Incorrect components fitted
• Misaligned or incorrectly oriented components (including the MCU itself)
• etc, etc, ...