Texas Instruments

Category: Magnetic Sensors

The DRV5055-Q1 device 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 3.3-V or 5-V power supplies. When no magnetic field is present, the analog output drives half of V_CC. The output changes linearly with the applied magnetic flux density, and four sensitivity options enable maximal output voltage swing based on the needed sensing range. North and south magnetic poles produce unique voltages.

The device senses magnetic flux that is perpendicular to the top of the package, and the two package options provide different sensing directions.

The device uses a ratiometric architecture that can eliminate error from V_CC tolerance when the external analog-to-digital converter (ADC) uses the same V_CC 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.

Features:

• Ratiometric Linear Hall Effect Magnetic Sensor
• Operates From 3.3-V and 5-V Power Supplies
• Analog Output With V_CC / 2 Quiescent Offset
• Magnetic Sensitivity Options (At V_CC = 5 V):
  • A1: 100 mV/mT, ±21-mT Range
  • A2: 50 mV/mT, ±42-mT Range
  • A3: 25 mV/mT, ±85-mT Range
  • A4: 12.5 mV/mT, ±169-mT Range
• Fast 20-kHz Sensing Bandwidth
• Low-Noise Output With ±1-mA Drive
• Compensation For Magnet Temperature Drift
• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 0: –40°C to 150°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level 2
  • Device CDM ESD Classification Level C4B
• Standard Industry Packages:
  • Surface-Mount SOT-23
  • Through-Hole TO-92

$1.95