A3962 Ver la hoja de datos (PDF) - Allegro MicroSystems

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componentes Descripción

Fabricante

A3962

DUAL FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems 

3962

DUAL FULL-BRIDGE

PWM MOTOR DRIVER

2.5

2.0

1.5

1.0

RθJA = 60°C/W

0.5

RθJT = 6°C/W

TRUTH TABLE

ENABLE

H

L

L

PHASE

X

H

L

X = Irrelevant

OUTA

Off

H

L

OUTB

Off

L

H

0

25

50

75

100

125

150

TEMPERATURE in °C

Dwg. GP-019-1

FUNCTIONAL BLOCK DIAGRAM AND TYPICAL

BIPOLAR STEPPER MOTOR APPLICATION

MOTOR SUPPLY

CBB

V BB

LOGIC SUPPLY

V CC

C CC

OUT 1A

OUT 1B

OUT 2A

OUT 2B

ENABLE 1

PHASE 1

CONTROL LOGIC

AND LEVEL SHIFT

BLANKING

TIME AND

+

SOURCE

_

DRIVER T OFF

CONTROL

UVLO

AND

TSD

VOLTAGE

REFERENCE

CONTROL LOGIC

AND LEVEL SHIFT

ENABLE 2

PHASE 2

BLANKING

+

TIME AND

SOURCE

_

DRIVER T OFF

CONTROL

RC1

RT1

SENSE 1

C T1

GND

RS1

REFOUT

R1

REF IN SENSE 2

R2

RS2 CT2

RC 2

RT2

115 Northeast Cutoff, Box 15036

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

Copyright © 1995 Allegro MicroSystems, Inc.

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