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A1120LLHLT-T: Features, Specs & More

2025-09-08 15:13:38Mr.Ming
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A1120LLHLT-T: Features, Specs & More

The Allegro MicroSystems A1120LLHLT-T is a high-performance unipolar Hall Effect sensor designed for automotive and industrial applications. It offers reliable magnetic sensing in a compact 3-pin SOT-23W package. Its versatility in operating voltages ranging from 3.3V to 18V makes it suitable for a wide array of projects. In this comprehensive article, we'll delve into the intricacies of the A1120LLHLT-T, uncovering its definition, key features, specifications, applications, and a closer look at its manufacturer.

 

Catalog

A1120LLHLT-T's Overview

Key Features

Specifications

Applications

A1120LLHLT-T's Manufacturer

Conclusion

 

A1120LLHLT-T's Overview

The A1120LLHLT-T is a unipolar Hall Effect sensor integrated circuit (IC) that detects magnetic fields. It converts magnetic flux density into an electrical output signal. The sensor is optimized for automotive use and provides a stable output over a wide temperature range. It is engineered for surface-mount PCB applications, making it convenient for compact electronics.

 

Key Features

Let's delve into the standout features that make the A1120LLHLT-T a standout in the world of electronics:

· The sensor operates on a voltage range from 3.3V to 18V.

· It has a maximum output current of 25mA.

· The sensor supports a maximum supply voltage of 24V.

· It offers a typical output fall time of just 0.1 microseconds.

· Its magnetic operating point ranges between 5 to 50 Gauss.

· It is available in a compact 3-pin SOT-23W surface mount package.

· The sensor is rated for temperatures from -40°C to 150°C.

· It is fully automotive AEC-Q100 compliant.

· The device comes in a tape and reel packaging, optimized for high-volume manufacturing.

· The lead shape is gull-wing, supporting easy PCB assembly.

 

Specifications

Now, let's take a closer look at the technical specifications that define the capabilities of the A1120LLHLT-T:

Type

Parameter

PPAP

Unknown

Magnetic Type

Unipolar

Module/IC Classification

IC

Minimum Magnetic Sensor Release Point (Gs)

5

Typical Magnetic Sensor Hysteresis (Gs)

10

Maximum Magnetic Sensor Operating Point (Gs)

50

Typical Output Fall Time (us)

0.1

Maximum Output Current (mA)

25

Minimum Operating Supply Voltage (V)

3

Typical Operating Supply Voltage (V)

3.3|5|9|12|15|18

Maximum Operating Supply Voltage (V)

24

Maximum Supply Current (uA)

4000

Minimum Operating Temperature (°C)

-40

Maximum Operating Temperature (°C)

150

Supplier Temperature Grade

Automotive

Packaging

Tape and Reel

Mounting

Surface Mount

Package Height

0.95

Package Width

1.91

Package Length

2.98

PCB changed

3

Standard Package Name

SOT

Supplier Package

SOT-23W

Pin Count

3

Lead Shape

Gull-wing

 * A1120LLHLT-T's Datasheet

 

Applications

The A1120LLHLT-T is versatile and suitable for a range of applications:

· Automotive speed and position sensing.

· Proximity detection in industrial machinery.

· Brushless DC motor control.

· Current sensing in electronic circuits.

· Robotics and automation systems.

· Security and access control devices.

 

A1120LLHLT-T's Manufacturer

Allegro MicroSystems is a global semiconductor leader in sensor and power integrated circuits (ICs) and photonics. With more than 30 years of experience developing advanced semiconductor technology and application-specific algorithms, Allegro designs, develops, manufactures, and markets analog and mixed-signal semiconductors. The Company offers magnetic sensor integrated circuits (ICs), dual element switches, micropower switches, single output drivers, and LED drivers.

 

Conclusion

The Allegro MicroSystems A1120LLHLT-T is more than just a Hall Effect sensor; it is a high-performance, automotive-grade component that delivers accurate magnetic sensing across diverse applications. Whether you are designing automotive electronics, industrial machinery, or advanced robotics, this sensor provides reliability, precision, and efficiency. Its robust specifications, combined with Allegro's manufacturing excellence, make it a go-to choice for engineers worldwide.

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