Mobile Device Power Monitor Manual - GitHub Pages

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Figure 7: Vout LED indicator
If the power-up is successful, the green Vout LED indicator in Figure 7 above will power-up.
This LED is connected directly to Vout, so the light will dim slightly if the voltage is lowered.
If this LED does not power-up, then Vout did not power-up properly, so there are other
problems.
Over-Current Error from the Main Power Supply
Sometimes an over-current error occurs when powering-up. When an over-current error
occurs, the power LED displays as amber.
An over-current error can happen when the:
• Device is attached backwards.
• Device is attached incorrectly.
• Device has a lot of capacitance, a very high in-rush current.
• Device has an unusually high run current.
Figure 8: Amber LED indicator for over-current
Note Be sure to check for a backwards connection before overriding the over-current
limits.