A1143ELHLT Allegro Microsystems Inc, A1143ELHLT Datasheet - Page 2

• Manufacturer Part Number: A1143ELHLT
• Description: IC SWITCH HALL EFFECT UNI SOT-23
• Manufacturer: Allegro Microsystems Inc
• Type: Unipolar Switchr

Specifications of A1143ELHLT

• Sensing Range: 110G Trip, 45G Release
• Voltage - Supply: 3.5 V ~ 24 V
• Current - Supply: 6.9mA
• Output Type: Digital, Open Drain
• Features: Regulated Voltage
• Operating Temperature: -40°C ~ 85°C
• Package / Case: SOT-23W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output (max): -

A1140, A1142, and
A1143
Description (continued)
transient protection and a Zener clamp to protect against overvoltage
conditions on the supply line.
The output currents of the A1143 switch HIGH in the presence of a
south (+) polarity magnetic field of sufficient strength, and switch
LOW otherwise, as in the presence of a weak field or a north (–)
polarity field. The other two devices in the family (A1140 and
A1142) have an opposite output: the currents switch LOW in the
presence of a south-polarity magnetic field of sufficient strength,
Absolute Maximum Ratings
Supply Voltage
Reverse Supply Voltage
Magnetic Flux Density
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
1. VCC
2. No connection
3. GND
Characteristic
Package LH, 3-pin SOT
1
3
NC
2
Symbol
T
J
V
V
(max)
T
RCC
T
B
stg
CC
A
Range E
Range L
Sensitive Two-Wire Chopper-Stabilized
and switch HIGH otherwise. The other differences in the switches
are their defined low current levels and magnetic switchpoints.
All versions are offered in two package styles. The LH is a SOT-
23W, miniature low-profile package for surface-mount applications.
The UA is a three-lead ultramini SIP for through-hole mounting.
Each package is available in a lead (Pb) free version (suffix, –T)
with 100% matte tin plated leadframe. Field-programmable versions
also available: A1180, A1182, and A1183.
Notes
Unipolar Hall Effect Switches
1. VCC
2. GND
3. GND
Package UA, 3-pin SIP
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
1
–40 to 150
–65 to 170
Unlimited
–40 to 85
2
Rating
–18
165
28
3
Units
ºC
ºC
ºC
ºC
G
V
V
2