The Power Drop Board is a specialized solution designed to ensure the reliable operation of the Auto-reboot function on ODROID-M1 and M2 systems during momentary power interruptions.

NOTICE: DC Plug Cable Assembly (5.5mm) is available - please see "Related Products" below.

Key functions:

Rapid Capacitor Discharge: In the event of a brief power failure, this board forces the large-capacity capacitors inside the Power Supply (AC/DC adapter) to discharge rapidly.

PMIC Auto-reboot Reliability: By ensuring the input voltage drops below the PMIC’s threshold quickly, it prevents the PMIC from entering a “frozen” state and guarantees a successful auto-reboot when power is restored.

Fixes “No Power” Issues: Specifically designed to resolve instances where the M2 and M1 fails to power back on after a short brownout or power dip.

Schematics:

For the development history and technical background of this feature, please refer to the link below.

https://forum.odroid.com/viewtopic.php?f=236&t=49431