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DRV5055A3QDBZR

TIDRV5055A3QDBZR

Texas Instruments
Hall Effect Sensor Single Axis SOT-23-3
Active4,160 in stock
Datasheet Digi-Key Compare Prices

Overview

The DRV5055A3QDBZR is a ratiometric linear Hall-effect sensor designed for high-precision magnetic field sensing. It converts magnetic flux density into a proportional analog voltage output, featuring a +/-85mT sensing range and internal temperature compensation to maintain accuracy across -40degC to 125degC. The device operates at either 3.3V or 5V rails, providing a quiescent output voltage at Vcc/2.

Why Choose This Part

This sensor offers a 20kHz bandwidth and a low-noise output stage capable of driving +/-1mA loads. Its ratiometric design ensures that the output sensitivity scales with the supply voltage, canceling out errors caused by Vcc fluctuations. The integrated temperature compensation specifically offsets the thermal drift of magnets, ensuring consistent system performance over a wide temperature range.

Applications

Throttle and Pedal Positioning
Utilizes the linear analog output to detect the precise position of automotive control pedals.
Current Sensing
Measures the magnetic field generated by current-carrying conductors for non-contact current monitoring.
Liquid Level Sensing
Detects the position of a floating magnet in a tank to provide continuous fluid level feedback.
Joystick and Dial Control
Provides high-resolution angular or linear position data for industrial human-machine interfaces.

Key Specifications

Axis Single
Features Temperature Compensated
Bandwidth 20kHz
Technology Hall Effect
Output Type Analog Voltage
Mounting Type Surface Mount
Sensing Range +/-85mT
Package / Case TO-236-3, SC-59, SOT-23-3
Voltage - Supply 3V ~ 3.63V, 4.5V ~ 5.5V
Operating Temperature -40degC ~ 125degC
Current - Output (Max) 1mA
Current - Supply (Max) 10mA
Supplier Device Package SOT-23-3

Getting Started

To evaluate this sensor, connect the Vcc and GND pins to a stable 3.3V or 5V supply and monitor the OUT pin using an ADC on a microcontroller like an MSP430 or STM32. Ensure a 0.1uF ceramic bypass capacitor is placed close to the Vcc pin to minimize noise. For rapid prototyping, the DRV5055-EVM evaluation module provides a pre-populated circuit with test points for signal analysis.

DRV5055 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Sensing Range Package Voltage Temp Range Stock
DRV5055A3QDBZR (this part) +/-85mT 3-236 3V -40degC ~ 125degC 4,160
DRV5055A1QDBZR +/-21mT 3-236 3V -40degC ~ 125degC 17,349
DRV5055A1EDBZRQ1 +/-21mT 3-236 3V -40degC ~ 150degC 1,440
DRV5055A2QDBZR +/-42mT 3-236 3V -40degC ~ 125degC 5,665
DRV5055A1QLPGM +/-21mT, +/-22mT 3-226 3V -40degC ~ 125degC 49,909
DRV5055-ANGLE-EVM — — 5V — 2

Also Consider

DRV5053RAQDBZR TITexas Instruments - Alternative linear Hall sensor with different sensitivity levels and a non-ratiometric output option if fixed voltage scaling is required.
A1324LLHLT-T Allegro MicroSystems - A comparable linear Hall-effect sensor in a SOT-23W package with high sensitivity for low-field applications.