描述 Description

The LV8741V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which is capable of micro-step drive and supports Quarter-step excitation, and two channels of a brushed motor driver, which supports forward, reverse, brake, and standby of a motor. It is ideally suited for driving brushed DC motors and stepper motors used in office equipment and amusement applications.

特性 Features

? On resistance (upper side : 0.5Ω ; lower side : 0.5Ω ; total of upper and lower : 1.0Ω ; Ta = 25°C, IO = 1.5A)
? High Efficiency
? Excitation mode can be set to Full-step, Half-step full torque, Half-step or Quarter-step
? Various Step Adjustment Available
? Motor current selectable in four steps
? Low Consumption
? Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
? Safety Design
? Thermal shutdown circuit and power supply monitor circuit incorporated
? Thermal protection, Low voltage detection
? CLK-IN Input
? Easy Control for Micro-step Drive
? Single-channel PWM current control stepper motor driver (selectable with DC motor driver channel 2) incorporated.
? BiCDMOS process IC
? Excitation step proceeds only by step signal input
? IO max = 1.5A
? No control supply required VCC = 3.3V
? Unusual Condition Warning Output Pin

應(yīng)用 Application

? Stepper/Brush DC Motors
? Computing & Peripherals
? Industrial
? Printers
? Flatbed Scanner
? Inkjet Printer
? Multi-Function Printer
? Document Scanner
? Slot Machine
? Vending Machine
? Cash Machine

簡介

LV8741V屬于集成電路（IC）的電機(jī)驅(qū)動器控制器。由制造生產(chǎn)的LV8741V電機(jī)驅(qū)動器，控制器產(chǎn)品屬于電機(jī)驅(qū)動器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機(jī)或相關(guān)機(jī)電執(zhí)行器的電源。所實現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機(jī)的簡單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級閉環(huán)運動控制。