A3281LLHLT
Product Overview
Category
The A3281LLHLT belongs to the category of Hall Effect sensor ICs.
Use
It is used for sensing the presence of a magnetic field and converting it into a digital output signal.
Characteristics
- High sensitivity to magnetic fields
- Digital output for easy interfacing with microcontrollers
- Low power consumption
- Wide operating voltage range
Package
The A3281LLHLT comes in a small surface-mount package, making it suitable for compact designs.
Essence
This sensor is essential for applications requiring accurate and reliable detection of magnetic fields.
Packaging/Quantity
The A3281LLHLT is typically packaged in reels containing a specific quantity, such as 2500 units per reel.
Specifications
- Operating Voltage: 3.8V to 24V
- Output Type: Open-drain digital output
- Operating Temperature Range: -40°C to 150°C
- Sensing Range: ±150 Gauss
Detailed Pin Configuration
The A3281LLHLT has a 3-pin configuration: 1. VCC (Power supply) 2. GND (Ground) 3. OUT (Digital output)
Functional Features
- Digital output eliminates the need for external analog circuitry
- Reverse polarity protection for robustness
- Built-in hysteresis for noise immunity
Advantages
- High sensitivity allows for precise magnetic field detection
- Low power consumption extends battery life in portable devices
- Wide operating voltage range enhances versatility in different applications
Disadvantages
- Limited sensing range compared to some other Hall Effect sensors
- Operating temperature range may not be suitable for extreme environments
Working Principles
The A3281LLHLT operates based on the Hall Effect, where the presence of a magnetic field causes a voltage difference across the sensor, leading to a digital output signal.
Detailed Application Field Plans
Automotive
- Position sensing for throttle pedals
- Gear shift position detection
- Speed sensing in vehicle transmission systems
Industrial
- Proximity sensing in machinery
- Motor speed control
- Current sensing in power electronics
Consumer Electronics
- Lid open/close detection in laptops
- Brushless DC motor control in appliances
- Magnetic card reader systems
Detailed and Complete Alternative Models
- A1324LUA-T: Similar Hall Effect sensor with extended temperature range
- SS495A: Analog output Hall Effect sensor with higher sensitivity
- DRV5053VA-Q1: Digital output sensor with programmable sensitivity
In conclusion, the A3281LLHLT is a versatile Hall Effect sensor IC with high sensitivity and low power consumption, suitable for various applications in automotive, industrial, and consumer electronics. While it has limitations in terms of sensing range and operating temperature, it offers reliable performance and ease of integration into electronic systems.
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What is the A3281LLHLT?
- The A3281LLHLT is a high-temperature, high-sensitivity, Hall-effect latch with integrated pull-up resistor.
What is the operating temperature range of A3281LLHLT?
- The A3281LLHLT operates in a temperature range from -40°C to 150°C.
What is the supply voltage range for A3281LLHLT?
- The supply voltage range for A3281LLHLT is 3.8V to 24V.
What is the typical output current of A3281LLHLT?
- The typical output current of A3281LLHLT is 25mA.
What are the typical applications of A3281LLHLT?
- A3281LLHLT is commonly used in brushless DC motor commutation, speed and direction sensing, tachometer generators, and magnetic encoding.
What is the package type of A3281LLHLT?
- A3281LLHLT comes in a 3-pin SOT-23 surface-mount package.
What is the sensitivity of A3281LLHLT?
- The sensitivity of A3281LLHLT is typically 30G.
Does A3281LLHLT have reverse polarity protection?
- Yes, A3281LLHLT has built-in reverse polarity protection.
Is A3281LLHLT RoHS compliant?
- Yes, A3281LLHLT is RoHS compliant.
Can A3281LLHLT be used in automotive applications?
- Yes, A3281LLHLT is suitable for use in automotive applications due to its high-temperature operation and robust design.