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US5881LUA-AAA-000-BU

US5881LUA-AAA-000-BU

Melexis Technologies NV
Digital Switch Unipolar Switch Open Drain Hall Effect TO-92-3
Active7,649 in stock
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Overview

The Melexis US5881LUA-AAA-000-BU is a unipolar Hall effect switch designed for robust magnetic sensing applications. It features an open-drain output, south pole activation, and operates over a wide voltage range. Its chopper-stabilized amplifier stage provides stable performance across its operating temperature range.

Why Choose This Part

This Hall effect switch offers a wide operating voltage range of 3.5V to 24V and a broad operating temperature range from -40degC to 150degC, making it suitable for harsh environments. Its chopper-stabilized amplifier enhances sensitivity and temperature stability. The open-drain output allows for flexible interfacing with various microcontrollers or logic circuits.

Applications

Automotive Position Sensing
Ideal for detecting the position of components in automotive systems, such as seatbelt buckles, gear selectors, or window lifters, due to its high operating temperature range and robust design.
Industrial Limit Switches
Suitable for non-contact limit sensing in industrial machinery, providing reliable on/off switching based on the presence of a magnetic field.
Motor Commutation
Can be used in brushless DC (BLDC) motor commutation for sensing rotor position, offering a simple and effective solution for motor control feedback.
Door and Lid Closure Detection
Effective for detecting the open or closed state of doors, lids, or covers in appliances and security systems by sensing a nearby magnet.
Flow Metering
Can be integrated into flow meters to detect the rotation of a turbine or impeller, providing pulses for flow rate measurement.

Key Specifications

Function Unipolar Switch
Technology Hall Effect
Output Type Open Drain
Polarization South Pole
Mounting Type Through Hole
Sensing Range 30mT Trip, 30mT Release
Package / Case TO-226-3, TO-92-3 Short Body
Test Condition 25degC
Voltage - Supply 3.5V ~ 24V
Operating Temperature -40degC ~ 150degC (TA)
Current - Output (Max) 50mA
Current - Supply (Max) 5mA
Supplier Device Package TO-92-3

Getting Started

To get started with the US5881LUA-AAA-000-BU, connect its VDD pin to a 3.5V to 24V supply, GND to ground, and the output pin to a pull-up resistor (typically 1k Ohm to 10k Ohm) connected to VDD. Apply a south pole magnetic field of 30mT or greater to trigger the switch. Test with a permanent magnet to observe the output transition.

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