A3969 데이터 시트보기 (PDF) - Allegro MicroSystems

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A3969

Dual Full-Bridge PWM Motor Driver

Allegro MicroSystems 

A3969

Dual Full-Bridge PWM Motor Driver

Package ET, 28 pin QFN

All dimensions reference only, not for tooling use.

(reference JEDEC MO-220VHHD)

Dimensions in millimeters

U.S. Customary dimensions (in.) in brackets, for reference only

Dimensions exclusive of mold flash, gate burrs, and dambar protrusions

Exact case and lead configuration at supplier discretion within limits shown

A Terminal #1 mark area

B Exposed thermal pad (terminal #1 identifier appearance

at supplier discretion)

C Reference land pattern layout (reference IPC7351

QFN50P500X500X80-29W3M); adjust as necessary to

meet application process requirements and PCB layout

tolerances; when mounting on a multilayer PCB, thermal

vias at the exposed thermal pad land can improve thermal

dissipation (reference EIA/JEDEC Standard JESD51-5)

0.30 .012

NOM

0.85 .033

NOM

28

24X0.20 .008

MIN

0.50 .020

NOM

1

2

C

4X0.20 .008

MIN

5.2 .203

NOM

4X0.20 .008

MIN

5.2 .203

NOM

3.15 .123

NOM

3.15 .123

NOM

5.15 .203

4.85 .191

28

1

2

A

28X

0.08 [.003] C

28X

0.30

0.18

.012

.007

0.10 [.004] M C A B

0.05 [.002] M C 0.50 .020

3.15 .124

NOM

0.65 .026

0.45 .018

2

1

R0.30 .012

REF

B

28

A

B

5.15 .203

4.85 .191

C

SEATING

PLANE

1.00 .039

0.80 .031

0.20 .008

REF

0.05 .002

0.00 .000

3.15 .124

NOM

The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Satlington® is a registered trademark of

Allegro MicroSystems, Inc. (Allegro), and Satlington devices are manufactured under U. S. Patent No. 5,684,427.

Allegro reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in

the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being

relied upon is current.

Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval.

The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its

use; nor for any infringement of patents or other rights of third parties which may result from its use.

Copyright© 2006, Allegro MicroSystems, Inc.

Allegro MicroSystems, Inc.

9

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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