A3973(2007) 데이터 시트보기 (PDF) - Allegro MicroSystems

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A3973
(Rev.:2007)

Dual DMOS Full-Bridge Microstepping PWM Motor Driver

Allegro MicroSystems 

A3973

Dual DMOS Full-Bridge

Microstepping PWM Motor Driver

Selection Guide

Part Number

Package

A3973SB-T

24 pin DIP with two power tabs

A3973SLB-T

24 pin SOICW with four internally fused pins

A3973SLBTR-T

24 pin SOICW with four internally fused pins

Packing

15 pieces per tube

31 pieces per tube

1000 pieces per reel

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Units

Load Supply Voltage

Output Current*

Logic Supply Voltage

Logic Input Voltage Range

Reference Voltage

Sense Voltage (DC)

Package Power Dissipation

VBB

IOUT

VDD

VIN

VREF

VS

PD

Package B

Package LB

35

V

±1.0

A

7.0

V

–0.3 to VDD + 0.3

V

3

V

500

mV

3.1

W

2.2

W

Operating Ambient Temperature

TA

Range S

–20 to 85

ºC

Junction Temperature

TJ

150

ºC

Storage Temperature

Tstg

–55 to 150

ºC

*Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed

the specified current rating or a junction temperature of 150°C.

Allegro MicroSystems, Inc.

2

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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