A1421 View Datasheet(PDF) - Allegro MicroSystems

Part Name

Description

MFG CO.

A1421

High Precision Hall Effect AC-Coupled Differential Sensor IC with Integrated Filter Capacitor

Allegro MicroSystems 

Prev 11 12 13 14 15

A1421, A1422,

and A1423

High Precision Hall Effect AC-Coupled Differential

Sensor IC with Integrated Filter Capacitor

Package K, 4-pin SIP

45°

3.43

+0.08

–0.05

E1

2.16

MAX

5.21

+0.08

–0.05

B

E

E

2.20 1.50

D

1.29 E

E2

Branded

Face

A

14.73 ±0.51

1234

0.41

+0.07

–0.05

1.55 ±0.05

Mold Ejector

Pin Indent

NNNN

YYWW

45°

0.84 REF

1

D Standard Branding Reference View

N = Device part number

Y = Last two digits of year of manufacture

W = Week of manufacture

For Reference Only; not for tooling use (reference DWG-9010)

Dimensions in millimeters

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

Exact case and lead configuration at supplier discretion within limits shown

0.38

+0.06

–0.03

A Dambar removal protrusion (8X)

B Gate and tie bar burr area

C Branding scale and appearance at supplier discretion

D Active Area Depth, .0.42 mm

E Hall elements (E1 and E2); not to scale

1.27 NOM

Copyright ©2004-2009, Allegro MicroSystems, Inc.

The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889;

5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending.

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

Allegro MicroSystems, Inc.

15

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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