L6219 霍尔传感器及步进机驱动分销商，只供应原装进品产品，量大可接受订货，提供技术资料及报价

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L6219 霍尔传感器及步进机驱动分销商，只供应原装进品产品，量大可接受订货，提供技术资料及报价

发布时间：2009-04-09 浏览：5909次

【产品名称】 L6219 L6219D L6219DS
【产品类别】驱动器
【产品用途】马达步进机驱动
【产品规格】 Powerdip 20+2+2 PLCC44 SO20+2+2
【生产厂家】 ST
【技术参数】 L6219 规格书下载 DATESHEET
【运用范围】运用于汽车、电动车、跑步机等方面

The L6219 is a bipolar monolithic integrated cir-
　　cuits intended to control and drive both winding of
　　a bipolar stepper motor or bidirectionally control
　　two DC motors.
　

　The L6219 with a few external components form
　　a complete control and drive circuit for LS-TTL or
　　microprocessor controlled stepper motor system.
　　The power stage is a dual full bridge capable of
　　sustaining 46V and including four diodes for cur-
　　rent recirculation.
　　A cross conduction protection is provided to avoid
　　simultaneous cross conduction during switching
　　current direction.
　　An internal pulse-width-modulation (PWM) con-
　　trols the output current to 750mA with peak start-
　　up current up to 1A.
　　Wide range of current control from 750mA (each
　　bridge) is permitted by means of two logic inputs
　　and an external voltage reference. A phase input
　　to each bridge determines the load current direc-
　　tion.
　　A thermal protection circuitry disables the outputs
　　if the chip temperature exceeds safe operating
　　limits.