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BU52061NVX-TR

BU52061NVX-TR

Rohm Semiconductor
Digital Switch Omnipolar Switch Push-Pull Hall Effect SSON004X1216
NRND17,055 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The BU52061NVX-TR is an ultra-low power omnipolar Hall effect switch designed for battery-operated devices that require high-sensitivity magnetic detection. It features a push-pull output stage, eliminating the need for an external pull-up resistor while maintaining a typical supply current of only 7uA. The sensor detects both North and South poles with a typical trip point of +/-4.7mT, making it ideal for lid-close detection and proximity sensing.

Why Choose This Part

This sensor offers exceptional power efficiency with a 1.65V to 3.6V supply range and a microscopic 7uA maximum current draw, significantly extending battery life. Its omnipolar detection simplifies mechanical assembly as it triggers regardless of magnet orientation, and the tiny SSON004X1216 package saves critical PCB real estate.

Applications

Lid-Close Detection
Detecting the opening and closing of laptops, flip phones, and tablet covers to trigger sleep modes.
Smart Door/Window Sensors
Monitoring the status of entry points in security systems and smart home automation.
Water and Gas Meters
Providing non-contact rotation or pulse counting for resource metering in battery-powered deployments.
Wearable Proximity Sensing
Detecting presence or docking in small form-factor devices like smartwatches or medical wearables.

Key Specifications

Function Omnipolar Switch
Technology Hall Effect
Output Type Push-Pull
Polarization North Pole, South Pole
Mounting Type Surface Mount
Sensing Range +/-4.7mT Trip, +/-1.2mT Release
Package / Case 4-UDFN Exposed Pad
Test Condition 25degC
Voltage - Supply 1.65V ~ 3.6V
Operating Temperature -40degC ~ 85degC (TA)
Current - Output (Max) 500uA
Current - Supply (Max) 7uA
Supplier Device Package SSON004X1216

Getting Started

To evaluate this part, provide a stable 1.8V or 3.3V supply and place a bypass capacitor close to the VDD pin. Since it features a push-pull output, the signal can be connected directly to a microcontroller GPIO without an external pull-up resistor. Ensure the magnetic field strength at the sensor exceeds the 4.7mT trip threshold for reliable switching.

Also Consider

DRV5032FCDBZR TITexas Instruments - Offers an even lower average supply current of 0.54uA for extreme power-constrained applications.
AH1802-WG-7 DIODiodes Incorporated - A high-sensitivity omnipolar switch in a SOT-23 package for applications where easier hand-soldering is required.