Anyone using a low-voltage motor controller?

[NeverDie]

Some H-bridge controllers seem to assume a minimum voltage of 4.5v or greater (e.g. https://www.pololu.com/category/10/brushed-dc-motor-controllers). However, I may run motors at a much lower voltage. I found an H-bridge driver that can run motors at a very low voltage: http://www.ti.com/lit/ds/symlink/drv8838.pdf

Is there anything like that which already comes on its own breakout board at a reasonable price?

[NeverDie]

Found it here: https://www.pololu.com/product/2990

[Nca78]

@NeverDie how low is the voltage ?
L9110 can go down to 2.5V and is ultra cheap on ali, else there are also plenty of DRV8833 (min 2.7V) breakout boards it seems ?

[Nca78]

You missed those on Polulu
https://www.pololu.com/product/2990
https://www.pololu.com/product/2135

[NeverDie]

@Nca78 said in Anyone using a low-voltage motor controller?:

how low is the voltage ?

Not really sure yet, as I haven't finished selecting the motor. Sorry for the vagueness, but definitely lower than 4.5v.

[NeverDie]

@Nca78 said in Anyone using a low-voltage motor controller?:

@NeverDie how low is the voltage ?
L9110 can go down to 2.5V and is ultra cheap on ali, else there are also plenty of DRV8833 (min 2.7V) breakout boards it seems ?

Thanks! They're so cheap that I ordered both of them just to have them on hand for the future:
https://www.aliexpress.com/item/DRV8833-2Channel-DC-Motor-Driver-Module-Board-1-5A-3V-10V/32709948530.html?spm=a2g0s.9042311.0.0.9ar2Ko
and
https://www.aliexpress.com/item/10pcs-lot-L9110S-DC-Stepper-Motor-Driver-Board-H-Bridge-L9110-for-arduino-Free-Shipping-Dropshipping/32251090078.html?spm=a2g0s.9042311.0.0.9ar2Ko

Meanwhile, for expediency, I ordered two different kinds from Pololu:
https://www.pololu.com/product/2990
and
https://www.pololu.com/product/2960