[原创] ST STSPIN820高速高分辨率马达驱动解决方案

ST公司的STSPIN820是高速高分辨率步进马达驱动器,集成了控制逻辑和低RDSon功率级,集成的控制器实现了有固定OFF时间PWM电流控制和高达1/256步的微步距分辨率,并提供了完整的保护特性包括过流,超温和短路保护.工作电压7-45V,最大输出电流1.5Arms,主要用在3D打印机,医疗设备,工业2D打印机,缝纫机,CCTV,安全和球型摄像机,ATM和现钞处理机,办公和家庭自动化设备,POS和机器人.本文介绍了STSPIN820主要特性,框图和STSPIN820主要特性,电路图,以及基于STSPIN820步进马达扩展板X-NUCLEO-IHM14A1主要特性,电路图,材料清单.

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.

STSPIN820主要特性:

 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..

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