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Ratiometric Linear Hall Effect Sensor
for High-Temperature Operation
A1321, A1322,
and A1323
10
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Package LH, 3-Pin; (SOT-23W)
Terminal List
Symbol
Number
Description
Package LH Package UA
VCC 1 1 Connects power supply to chip
VOUT 2 3 Output from circuit
GND 3 2 Ground
Package LH
Package UA
Pin-out Drawings
231
21
3
B
B
B
0.95
2.975
0.180
1.91
0.40
0.05
1.00
0.25
1.49
0.96
0.38
2.90
4º
10º
10º
Gauge Plane
Seating Plane
2
1
3
All dimensions nominal, not for tooling use
Dimensions in millimeters
A
B
Active Area Depth
Hall element, not to scale
A
0.28