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1 Features

? Ratiometric Linear Hall Effect Magnetic Sensor

? Operates From 3.3V and 5V Power Supplies

? Analog Output With VCC / 2 Quiescent Offset

? Magnetic Sensitivity Options (At VCC = 5V):

– A1: 100mV/mT, ±21mT Range

– A2/Z2: 50 mV/mT, ±42-mT Range

– A3: 25mV/mT, ±85mT Range

– A4: 12.5mV/mT, ±169mT Range

– A5: –100mV/mT, ±21mT Range

? Fast 20kHz Sensing Bandwidth

? Low-Noise Output With ±1mA Drive

? Compensation for magnet temperature drift for A

versions and none for Z versions

? AEC-Q100 Qualified for Automotive Applications:

– Temperature Grade 0: –40°C to 150°C

? Standard Industry Packages:

– Surface-Mount SOT-23

– Through-Hole TO-92

2 Applications

? Automotive Position Sensing

? Brake, Acceleration, Clutch Pedals

? Torque Sensors

? Gear Shifters

? Throttle Position

? Height Leveling

? Powertrain and Transmission Components

? Absolute Angle Encoding

? Current Sensing

3 Description

The DRV5055-Q1 is a linear Hall effect sensor that

responds proportionally to magnetic flux density. The

device can be used for accurate position sensing in a

wide range of applications.

The device operates from 3.3V or 5V power supplies.

When no magnetic field is present, the analog output

drives half of VCC. The output changes linearly

with the applied magnetic flux density, and various

sensitivity options enable maximal output voltage

swing based on the required sensing range. North

and south magnetic poles produce unique voltages.

Magnetic flux perpendicular to the top of the package

is sensed, and the two package options provide

different sensing directions.

The device uses a ratiometric architecture that can

eliminate error from VCC tolerance when the external

analog-to-digital converter (ADC) uses the same VCC

for its reference. Additionally, the device features

magnet temperature compensation to counteract how

magnets drift for linear performance across a wide –

40°C to +150°C temperature range.