AEK-MOT-SM81M1 – L99SM81V Stepper Motor Driver Evaluation Board

The AEK-MOT-SM81M1 evaluation board is designed to drive a bipolar stepper motor in micro-stepping mode, with coil voltage monitoring for stall detection.
Key features

Board functionality based on L99SM81V programmable stepper motor driver for automotive applications:

with micro-stepping and hold functions
BEMF monitoring for stall detection
programmable configuration via SPI
5 V internal linear voltage regulator (output available on board connector)

Board reverse battery protection with STD95N4F3 MOSFET, which can be substituted with two optionally mounted diodes and a jumper
Input operating voltage range from 6 V to 28 V
Output current up to 1.35 A
Board size: 65 mm length x 81 mm width x 11 mm maximum component height
WEEE and RoHS compliant
All ST components are qualified Automotive grade
Part of the AutoDevKit initiative
Applications: automotive bipolar stepper motor

Resources
Datasheet