Chopper-Stabilized, Precision

Hall-Effect Latches

A3280, A3281

and

A3283

12

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Copyright ©2002-2010, Allegro MicroSystems, Inc.

Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to per-

mit 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’s products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the

failure of that life support device or system, or to affect the safety or effectiveness of that device or system.

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.

For the latest version of this document, visit our website:

www.allegromicro.com

Package UA, 3-Pin SIP

23

1

1.27 NOM

2.16

MAX

0.51

REF

45°

C

45°

0.79 REF

B

E

E

E

2.06

1.45

Gate burr area

A

B

C

Dambar removal protrusion (6X)

A

D

E

D

Branding scale and appearance at supplier discretion

Hall element, not to scale

Active Area Depth, 0.50 mm REF

For Reference Only; not for tooling use (reference DWG-9049)

Dimensions in millimeters

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

Exact case and lead configuration at supplier discretion within limits shown

Standard Branding Reference View

= Supplier emblem

N = Last two digits of device part number

T = Temperature code

NNT

1

Mold Ejector

Pin Indent

Branded

Face

4.09 +0.08

–0.05

0.41 +0.03

–0.06

3.02 +0.08

–0.05

0.43 +0.05

–0.07

15.75 ±0.51

1.52 ±0.05