A3212ELHLT-T

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A3212ELHLT-T

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MAGNETIC SWITCH OMNIPOLAR SOT23W

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Attribut Wert
Package / Case Tape & Reel (TR),Cut Tape (CT),Bulk
Part Status Active
Function Omnipolar Switch
Technology Hall Effect
Polarization North Pole, South Pole
Sensing Range ±5.5mT Trip, ±1mT Release
Test Condition -40°C ~ 85°C
Voltage - Supply 2.5V ~ 3.5V
Current - Supply (Max) 2mA
Current - Output (Max) 1mA
Output Type Open Drain
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Supplier Device Package SOT-23W

Übersicht

Description

The A3212ELHLT-T is a type of Hall-effect sensor manufactured by Allegro MicroSystems. It is specifically designed for applications that require a small, energy-efficient sensor with reliable performance. This device operates as a unipolar switch, which means it responds to one magnetic pole only, typically used to detect the presence of a magnetic field for position and speed sensing applications.
Key features of the A3212ELHLT-T include its low power consumption, making it suitable for battery-operated devices, and its capability to operate in a wide range of temperatures, enhancing its versatility in different environmental conditions. The sensor is housed in a compact SOT-23W package, making it easy to integrate into various electronic systems.
Overall, the A3212ELHLT-T is ideal for use in consumer electronics, automotive applications, and industrial equipment, where space, power efficiency, and reliable magnetic sensing are critical.

Equivalent

The A3212ELHLT-T is a Hall-effect sensor IC. Equivalent products include the Allegro A3212ELHLX-T, Micronas HAL series, Melexis MLX90248, and Honeywell SS49E. When selecting an equivalent, ensure that the specifications such as voltage ranges, sensitivity, and package type match your requirements. Always consult datasheets for precise compatibility.

Features

The A3212ELHLT-T is a Hall-effect latch sensor designed for precise magnetic field detection. Key features include:
1. Bipolar Latching: It responds to both north and south magnetic poles, providing a binary output state change.
2. Temperature Range: Operates effectively across a wide temperature range, typically -40°C to +85°C.
3. Low Power Consumption: Designed for efficient energy use, suitable for battery-operated devices.
4. Small Package: Available in a compact SOT-23W package, facilitating integration into space-constrained applications.
5. Sensitivity and Stability: Offers reliable performance with stable magnetic sensing thresholds.
6. Latch Type: Once activated by a magnetic field, it maintains its state until an opposite field deactivates it.
7. Applications: Ideal for use in speed sensing, position sensing, and current sensing applications in automotive, consumer electronics, and industrial sectors.
These features make the A3212ELHLT-T a versatile component for various magnetic sensing applications.

Pinout

The A3212ELHLT-T is a Hall-effect sensor IC with a 3-pin configuration. Its primary function is to detect magnetic fields and provide a digital output signal accordingly. The pin configuration is typically as follows:
1. Pin 1 (VCC): Power supply pin. It provides the necessary operating voltage to the IC.
2. Pin 2 (GND): Ground pin. It serves as the reference point for the circuit and is connected to the ground of the power supply.
3. Pin 3 (OUT): Output pin. This pin provides the digital output signal, which changes state based on the presence or absence of a magnetic field. When a magnetic field of sufficient strength is detected, the output switches from high to low or vice versa, depending on the orientation of the magnetic field.
The A3212ELHLT-T is commonly used in various applications, including proximity sensing, position sensing, and speed detection, due to its small size and reliable performance.

Manufacturer

The A3212ELHLT-T is manufactured by Allegro MicroSystems. Allegro MicroSystems is a company that specializes in developing and manufacturing high-performance power and sensing semiconductor solutions. They focus on integrated circuits for motion control, energy-efficient systems, and automotive applications. Allegro is known for its expertise in sensor ICs, including magnetic sensors and power ICs used in a variety of applications, such as automotive, industrial, and consumer segments.

Application

The A3212ELHLT-T is a Hall-effect sensor IC primarily used for precise position and speed sensing applications. Its application areas include:
1. Automotive: Used in speedometers, anti-lock braking systems, and engine management systems.
2. Consumer Electronics: Employed in devices like smartphones and tablets for orientation detection.
3. Industrial Automation: Utilized in machinery for position and speed monitoring.
4. Home Appliances: Incorporated in washing machines and refrigerators for door position detection.
5. Medical Devices: Utilized in equipment requiring precise motion detection.
These applications benefit from the sensor's high sensitivity and low power consumption.

Package

The A3212ELHLT-T is a Hall-effect sensor IC from Allegro MicroSystems, typically packaged in a small surface-mount package, such as the SOT-23W, which is a variation of the standard SOT-23 package designed for a wider range of operating conditions.

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