MS3989N

Ruimeng Technology
MS3989/MS3989N Function and Feature The MS3989/MS3989N is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four dc motors. Eachfull-bridge output is rated up to 1.2 A and 36 V. The MS3989/MS3989N includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be co...
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Технические характеристики

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Тип устройства
Напряжение питания
Максимальный выходной ток
Примечание Designed to operate two stepper motors ore four DC motors
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MS3989/MS3989N Function and Feature The MS3989/MS3989N is a quad DMOS full-bridge driver capable of driving up to two stepper motors or four dc motors. Eachfull-bridge output is rated up to 1.2 A and 36 V. The MS3989/MS3989N includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-to-analog converters) that allow stepper motors to be controlled in full,half, and quarter steps, and dc motors in forward, reverse, and coast modes. The PWM current regulator uses mixed decay mode for reduced audible motor noise, increased step accuracy, and reduced power dissipation. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation. Protection features include thermal shutdown with hysteresis, undervoltage lockout (UVLO) and crossover current protection.Special power up sequencing is not required. The MS3989/MS3989N is supplied in two packages QFN36，QFP48,with exposed power tabs for enhanced thermal performance. Featues and benifits： ■36 V output rating ■4 full bridges ■High current outputs ■3.3 and 5 V compatible logic supply ■Synchronous rectification ■UVLO protection ■Thermal shutdown circuitry ■Crossover-current protection MS3989N MS3989 PIN Function description： 杭州瑞盟科技有限公司 Http:www.relmon.com Version：1.2 page 1/12 2017.04.28 PDF
Документация на MS3989N 

一. 芯片介绍与特性

Дата модификации: 12.06.2022

Размер: 986.8 Кб

12 стр.

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