georges80
Flashlight Enthusiast
I decided to make a video of my tiny Hall sensor board to give an idea of how sensitive a hall effect device can be. In the video you can see the sensor easily working through various thicknesses of Aluminium. Obviously it won't work through a magnetic material like iron since the magnetic field will be 'absorbed' before reaching the hall sensor above/below it.
Anyhow, it's pretty neat to see the board switching several amps all with no contact.
Basic specs of the tiny board:
* Solid State Hall Sensor input.
* Operates from 3V to 25V.
* Can switch (low side n-chan power FET) up to 15A.
* Can be used as a momentary action switch (SW output pad).
* Very low on resistance (typically 6 milliohms).
* Very low quiescent current (typically 60uA, less than 0.05 amp.hour per month drain).
* Compact size (0.55 x 0.425).
* Can be mounted with supplied thermal adhesive tape to the side of a metal housing (non-magnetic).
* Protected against reverse polarity connection
cheers,
george.
Anyhow, it's pretty neat to see the board switching several amps all with no contact.
Basic specs of the tiny board:
* Solid State Hall Sensor input.
* Operates from 3V to 25V.
* Can switch (low side n-chan power FET) up to 15A.
* Can be used as a momentary action switch (SW output pad).
* Very low on resistance (typically 6 milliohms).
* Very low quiescent current (typically 60uA, less than 0.05 amp.hour per month drain).
* Compact size (0.55 x 0.425).
* Can be mounted with supplied thermal adhesive tape to the side of a metal housing (non-magnetic).
* Protected against reverse polarity connection
cheers,
george.
