Automotive, ratiometric linear Hall-effect sensor with analog output

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.