Description:

The STSPIN820 is a stepper motor driver whichintegrates, in a small QFN 4 x 4 mm package,both control logic and a low RDSon power stage.The integrated controller implements a PWMcurrent control with fixed OFF time and amicrostepping resolution up to 1/256th of the step.The device can be forced into a low consumptionstate.The device offers a complete set of protectionfeatures including overcurrent, overtemperatureand short-circuit protection.

Features:

 Operating voltage from 7 to 45 V

 Maximum output current 1.5 Arms

 RDSon HS + LS = 1 Ω typ.

 Microstepping up to 1/256th of step

 Current control with programmable OFF time

 Current sensing based on external shuntresistor

 Full protection set

 Non-dissipative overcurrent protection

 Short-circuit protection

 Undervoltage lockout

 Thermal shutdown

 Standby low consumption

Applications:

 3D printers

 Medical equipment

 Industrial 2D printers

 Textile and sewing machines

 CCTV, security and dome cameras

 ATM and cash handling machines

 Office and home automation

 POS

 Robotics