A4984 데이터 시트보기 (PDF) - Allegro MicroSystems

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A4984

DMOS Microstepping Driver with Translator And Overcurrent Protection

Allegro MicroSystems 

A4984

DMOS Microstepping Driver with Translator

And Overcurrent Protection

Functional Block Diagram

VREG

0.22 MF

ROSC

0.1 MF

CP1

CP2

VDD

Current

Regulator

OSC

Charge

Pump

VCP

REF

DAC

STEP

DIR

RESET

MS1

MS2

Translator

PWM Latch

Blanking

Mixed Decay

Control

Logic

ENABLE

SLEEP

DAC

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 MF

RS1

RS2

Allegro MicroSystems, Inc.

3

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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