Chopper-Stabilized, Two Wire

Hall-Effect Latch

A1244

2

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

NC

1

2

3

1

3

2

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Unit

Forward Supply Voltage

28

V

Reverse Supply Voltage

–18

V

Magnetic Flux Density

B

Unlimited

G

Operating Ambient Temperature

Range L

–40 to 150

ºC

Maximum Junction Temperature

165

ºC

Storage Temperature

–65 to 170

ºC

Selection Guide

Part Number

Packing*

Package

Operating Ambient

(°C)

Supply Current

(mA)

A1244LLHLX-I1-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount

–40 to 150

5 to 6.9

A1244LLHLX-I2-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount

–40 to 150

2 to 5

A1244LUA-I1-T

Bulk, 500 pieces/bag

3-pin SIP through hole

–40 to 150

5 to 6.9

A1244LUA-I2-T

Bulk, 500 pieces/bag

3-pin SIP through hole

–40 to 150

2 to 5

Pin-out Diagrams

LH Package

3-pin SOT23W

UA Package

3-pin SIP

Terminal List Table

Name

Number

Function

LH

UA

VCC

1

1

Connects power supply to chip

NC

2

–

No connection

GND

3

2,3

Ground