ST L6228PD

Привод - полностью интегрированный, ступень управления и питания1.4A8 В ~ 52 В

Overview

The L6219R is a bipolar monolithic integrated circuits intended to control and drive both winding of a bipolar stepper motor or bidirectionally control two DC motors.The L6219R 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 10V and including four diodes for current recirculation.

A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction. An internal pulse-width-modulation (PWM) controls the output current to 500mA with peak start-up current up to 1A. Wide range of current control from 500mA (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 direction. A thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.

Features

Applications

• Hospitality buildings
• Smart lighting applications
• Automotive applications
• Dome
• Dash
• Footwell lighting
• Indicator
• Telltale lights
• Infotainment backlighting
• Tail lights