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7V to 45V Microstepping ST820 Stepper Motor Driver + Heatsink for 3D Printer RAMPS
Description: ST820 is a compact and easy to use evaluation board for the STSPIN820, the world's smallest 45V microstepping motor driver. Features: Supply voltage from 7V to 45V Output current up to 1.5A rms for each motor phase Maximum current up to 2.5 A per phase Integrated low RDS(ON) power stages (HS + LS = 1 typ.) It helps customers to really exploit the benefits of working at high microstepping resolution. The microstepping resolution can be easily set to one of eight available values through M1, M2 and M3 inputs: full-step, 1/2, 1/4, 1/8, 1/16, 1/32, 1/128 and 1/256 of step. Can adjustable current control through a potentiometer to set the ref. voltages Embedded PWM current control with selectable decay mode (fast or slow) The hardware is fully compatible to be used together with RAMPS or other similar FFF 3D printing platforms, representing a very fast drop-in replacement of similar solutions. It provides a very compact solution to evaluate the performance of the STSPIN820 stepper motor driver with a minimum set of additional equipment and without the need for additional devices. The STSPIN820 features a full set of protections: Stepper motor driving with a microstepping resolution up to 1/256th of step Overcurrent, short-circuit and overtemperature protection