A1221LLHLX-T Allicdata Electronics
Allicdata Part #:

A1221LLHLX-T-ND

Manufacturer Part#:

A1221LLHLX-T

Price: $ 0.00
Product Category:

Sensors, Transducers

Manufacturer: Allegro MicroSystems, LLC
Short Description: MAGNETIC SWITCH LATCH SOT23W
More Detail: Digital Switch Latch Open Drain Hall Effect SOT-23...
DataSheet: A1221LLHLX-T datasheetA1221LLHLX-T Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: Automotive, AEC-Q100
Packaging: Tape & Reel (TR) 
Part Status: Active
Function: Latch
Technology: Hall Effect
Polarization: South Pole
Sensing Range: 9mT Trip, -9mT Release
Test Condition: -40°C ~ 150°C
Voltage - Supply: 3 V ~ 24 V
Current - Supply (Max): 4mA
Current - Output (Max): 25mA
Output Type: Open Drain
Features: --
Operating Temperature: -40°C ~ 150°C (TA)
Package / Case: SOT-23W
Supplier Device Package: SOT-23W
Description

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The A1221LLHLX-T magnetic sensor/switch is a Solid State switch that is developed specifically for detecting the presence of a magnetic field. It is a type of magneto-resistive sensor that works based on the Hall Voltage effect, which is the production of a voltage whenever a currently flowing in a conductor is subjected to the effects of an external magnetic field perpendicular to the current flow. This Hall Voltage is biased by the current flow within the device, making it an extremely sensitive and reliable way to determine the presence of a magnetic field. This device is designed and manufactured to have a high tolerance to environmental variations and is certified to comply with tough industry standards.

The A1221LLHLX-T has a wide range of applications where the presence of a magnetic field needs to be detected. Some of the applications the A1221LLHLX-T are suited for include rotational speed sensing, flow sensing, and end-of-track sensing. Its sensitive circuitry can detect fields as weakened as 0.25 Teslas for great results, meaning that any relatively low intensity changes in the environment can be readily sensitively detected.

The core element of the A1221LLHLX-T is its Hall element, which utilizes the Hall Voltage effect to detect the presence of external magnetic fields. When exposed to an external magnetic field, the Hall element will be sensitively adjusted, and the information is processed through the integrated circuit of the device, producing the output signal as relative resistance changes. This output signal is then further processed by external components as needed, so that it can trigger an intended action when the external magnetic field increases or decreases beyond certain predefined intensity.

The A1221LLHLX-T is a versatile magnetic sensor/switch, developed for a range of applications with its robust design and low power requirement, while also being certified to meet international standards of toughness. It features a low power consumption and has a wide range of operating temperatures ranging from -40°C to 85°C. It also has a wide voltage range input and offers two types of outputs (digital/analog) to meet different design requirements. In addition, it combined the design of a monolithic chip with an exclusive Hall element, which makes it highly reliable and an ideal choice for many sensing applications.

The A1221LLHLX-T also features a low trigger threshold and a fast short-shake response time, meaning that it can detect relatively weaker external magnetic fields and fast changes in the environment. This allows it to detect even the smallest changes in the environment efficiently and accurately, making it ideal for applications where fast responses are needed. It also comes with a large current capacity and a high temperature range so that it can sustain even unstable or harsh environmental conditions.

In conclusion, the A1221LLHLX-T is a highly reliable magnetic sensor/switch ideal for many different kinds of sensing applications. It has a robust design and low power requirement, allowing it to detect even the weakest changes in the environment accurately and quickly. Its wide range of operating temperatures, large current capacity, and wide voltage range make it into an optimal choice for harsh environments.

The specific data is subject to PDF, and the above content is for reference

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