Performance VOXL Mini 4-in-1 ESC

[floooH]

Hello There,

we buy the VOXL Mini 4-in-1 ESC for our drone and missing the information about the performance.

In the datasheet https://docs.modalai.com/voxl-mini-esc-datasheet/ no informations are given.

Can you give us the information about the performance or is it the same as the not mini version?

best regards

[Alex Kushleyev]

Hello @floooH

Sorry about that, we will update the performance section soon.

The mini ESC has been tested at 16V 15A continuous for 1 minute (15A per each channel, so 60A total). The test condition was under full air flow of 5" tri-blade propellers spinning at around 20K RPM and the temperature of ESC (measured by the MCU) was around 80 degrees C. You generally want to keep your ESC under 100C (temperature is measured by the sensor inside each MCU and reported via ESC feedback).

The maximum voltage is 4S (up to at least 18V is safe).
Maximum burst current at least 30A per channel (for few seconds)

Even though the ESC can handle pretty large currents, due to its small form factor you need to be careful and watch the ESC temperature when you are designing / testing your drone. Small PCB of the mini ESC does not have much area for heat dissipation, so good airflow is required for large current flows. So the ESC is unlikely to break from over current (within reasonable range) but it could overheat if it is not appropriately cooled.

In general we recommend the mini ESC to be used on drones < 750g, where you should not have much problem at all with heat dissipation even with minimal cooling. But for any larger drone or racing applications you will need to perform testing to ensure the ESC can stay < 100 deg C (ideally around 60-80C during the whole flight).

I hope this helps, let me know if you need more info

Alex