3961 データシートの表示（PDF） - Allegro MicroSystems

部品番号

コンポーネント説明

一致するリスト

3961

DUAL FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems 

3961

DUAL FULL-BRIDGE

PWM MOTOR DRIVER

5

RθJT = 6.0°C/W

4

3

SUFFIX 'B', R θJA = 40°C/W

2

1

SUFFIX 'LB', R θJA = 55°C/W

TRUTH TABLE

ENABLE

H

PHASE

X

L

H

L

L

X = Irrelevant

OUTA

Off

H

L

0

25

50

75

100

125

150

TEMPERATURE IN °C

Dwg. GP-049A

FUNCTIONAL BLOCK DIAGRAM AND TYPICAL

BIPOLAR STEPPER MOTOR APPLICATION

MOTOR SUPPLY 1

LOGIC SUPPLY

MOTOR SUPPLY 2

CBB

Ccc

V BB1

V cc

GND

V BB2

C BB2

OUTB

Off

L

H

OUT 1A

OUT 1B

OUT2A

OUT 2B

ENABLE 1

PHASE 1

RC1

CONTROL LOGIC

AND LEVEL SHIFT

BLANKING

TIME AND

+

SOURCE

_

DRIVER T OFF

CONTROL

UVLO

AND

TSD

VOLTAGE

REFERENCE

CONTROL LOGIC

AND LEVEL SHIFT

BLANKING

+

TIME AND

SOURCE

_

DRIVER T OFF

CONTROL

ENABLE 2

PHASE 2

RC 2

SENSE 1

E1 IFULL/PD REFOUT

REFIN E 2

SENSE 2

RT1

CT1

E2

RS1

R1

R2

RS2

CT2

RT2

115 Northeast Cutoff, Box 15036

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

Copyright ©1995, 1996, Allegro MicroSystems, Inc.

Share Link: