Chopper Stabilized Precision Hall Effect Switches
A1120, A1121, A1122,
A1123, and A1125
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating    Units
Forward Supply Voltage
V
CC
26.5
V
Reverse Supply Voltage
V
RCC
30
V
Output Off Voltage
V
OUT
26
V
Continuous Output Current
I
OUT
25
mA
Reverse Output Current
I
ROUT
50
mA
Operating Ambient Temperature
T
A
Range E
40 to 85
Range L
40 to 150    篊
Maximum Junction Temperature
T
J
(max)
165
Storage Temperature
T
stg
65 to 170    篊
Pin-out Diagrams
Terminal List
Name
Description
Number
Package LH Package UA
VCC    Connects power supply to chip
1
1
VOUT   Output from circuit
2
3
GND    Ground
3
2
2
Package UA
Package LH
3
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