Looking for a motor driver board with short-circuit protection to use with DCC
mcu_nerd wrote 03/15/2021 at 13:01 • 3 pointsI've been using an L298N board that works fine, but it will likely go bang if the rails ever get shorted. Would be nice if the motor driver board is equipped with screw terminals for the motor and input power leads.
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Are you driving step motors or DC motors?
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Normal, brushed DC motors. It doesn't actually directly drive the motors though. The motor driver's purpose is to put out a signal to both provide power and data to the decoders onboard the locomotives. The decoders have their own motor driver circuitry.
Here's the DCC signal electrical specifications:
https://www.nmra.org/sites/default/files/standards/sandrp/pdf/s-9.1_electrical_standards_2020.pdf
Are you sure? yes | no
You might look at the TI DRV8412 or DRV8432 chips. I know they support overcurrent shutdown for short circuits. I think they support shutdown for detecting shorts to ground or the VMotor supply too, but it has been a while since I used them.
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Thanks, I'll take a look at those.
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