A4988 Ver la hoja de datos (PDF) - Allegro MicroSystems

Número de pieza

componentes Descripción

Lista de partido

A4988

DMOS Microstepping Driver with Translator and Overcurrent Protection / 28-contact QFN

Allegro MicroSystems 

A4988

DMOS Microstepping Driver with Translator

And Overcurrent Protection

Functional Block Diagram

VREG

0.22 µF

ROSC

0.1 µF

CP1

CP2

VDD

Current

Regulator

OSC

Charge

Pump

VCP

REF

DAC

STEP

DIR

RESET

MS1

MS2

MS3

ENABLE

SLEEP

Translator

DAC

PWM Latch

Blanking

Mixed Decay

Control

Logic

PWM Latch

Blanking

Mixed Decay

DMOS Full Bridge

OCP

Gate

Drive

DMOS Full Bridge

OCP

VBB1

OUT1A

OUT1B

SENSE1

VBB2

OUT2A

OUT2B

SENSE2

VREF

0.1 µF

RS1

RS2

Allegro MicroSystems, LLC

3

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Share Link: