Linear Hall-Effect Sensor ICs with Analog Output

Available in a Miniature, Low Profile Surface Mount Package

A1388 and

A1389

10

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Package LH, 3-Pin (SOT-23W)

0.55 REF

Gauge Plane

Seating Plane

0.25 BSC

0.95 BSC

0.95

1.00

0.70

2.40

2

1

B

C

C

B

Reference land pattern layout

All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary

to meet application process requirements and PCB layout tolerances

Branding scale and appearance at supplier discretion

A

PCB Layout Reference View

Branding Reference View

Branded Face

2.90 +0.10

–0.20

4°±4°

8X 10° REF

0.180+0.020

–0.053

0.05 +0.10

–0.05

0.25 MIN

1.91 +0.19

–0.06

2.98 +0.12

–0.08

1.00 ±0.13

1

389

1

89R

0.40 ±0.10

For Reference Only; not for tooling use (reference DWG-2840)

Dimensions in millimeters

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

Exact case and lead configuration at supplier discretion within limits shown

D

Hall element, not to scale

A1389LLHLX-9-T

A1388LLHLX-2-T

A1389LLHLX-RP9-T

D

D

D

1.49

0.96

3