A3280LLHLT Allegro Microsystems Inc, A3280LLHLT Datasheet - Page 10

• Manufacturer Part Number: A3280LLHLT
• Description: IC SWITCH HALL EFFECT SOT-23W
• Manufacturer: Allegro Microsystems Inc
• Type: Bipolar Latchr

Specifications of A3280LLHLT

• Sensing Range: 40G Trip, -40G Release
• Voltage - Supply: 4.2 V ~ 24 V
• Current - Supply: 8mA
• Current - Output (max): 25mA
• Output Type: Digital, Open Collector
• Features: Regulated Voltage
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-23W
• Magnetic Type: Latch
• Operating Supply Voltage (min): 4.2V
• Operating Supply Voltage (typ): 5/9/12/15/18V
• Operating Supply Voltage (max): 24V
• Output Current: 25mA
• Mag Sensor Operate Point (g): 40Gs
• Mag Sensor Release Point (g): -40Gs
• Mag Sensor Hysteresis(g): 45Gs
• Package Type: SOT-23W
• Pin Count: 3
• Mounting: Surface Mount
• Operating Temp Range: -40C to 150C
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A3280, A3281
and
be con nect ed (in close proximity to the Hall element) between the
supply and ground of the device to reduce both external noise and
noise generated by the chopper-sta bi li za tion tech nique.
a ring magnet. Oth er meth ods of operation, such as linear mag-
nets, are possible.
available in:
• Hall-Effect IC Applications Guide, Application Note 27701;
• Guidelines for Designing Subassemblies Using Hall-Effect De-
The sim plest form of magnet that will op er ate these devices is
Extensive applications information for Hall-effect devices is
A3283
X
APPLICATIONS INFORMATION
vices, Application Note 27703.1
More detailed descriptions of the chopper-stabilized circuit opera-
tion can be found in:
• Monolithic Magnetic Hall Sensing Using Dynamic Quadrature
Offset Cancelation, Technical Paper STP 97-10; and
• Chopper-Stabilized Amplifi ers With A Track-and-Hold Signal
Demodulator, Technical Paper STP 99-1.
All are provided at
Chopper-Stabilized, Precision
0.1 F
SUPPLY
www.allegromicro.com
Dwg. EH-013
OUTPUT
Hall-Effect Latches
SUPPLY
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
9