Texas Instruments DRV5015/DRV5015-Q1 Hall Effect Sensors

Texas Instruments DRV5015/DRV5015-Q1 Digital-Latch Hall Effect Sensors are low-voltage digital-latch Hall effect sensors designed for high-speed and high-temperature motor applications. Operating from a 2.5V to 5.5V power supply, the device senses magnetic flux density and presents a digital output based on predefined magnetic thresholds. Alternating north and south magnetic poles are required to toggle the output, and integrated hysteresis provides robust switching. The device has two magnetic threshold options and an inverted output option. The high magnetic sensitivity provides flexibility in low-cost magnet selection and component placement. The DRV5015-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Digital-latch hall effect sensor
  • High magnetic sensitivity
    • DRV5015A1: ±0.7mT (Typical)
    • DRV5015A2: ±1.8mT (Typical)
    • DRV5015A3: ±1.8mT (Inverted, typical)
  • Integrated Hysteresis
  • Fast 30kHz sensing bandwidth
  • 2.5V to 5.5V Operating VCC range
  • Open-drain output capable of 20mA output current
  • -40°C to +125°C Operating temperature range

Applications

  • Brushless DC motor sensors
  • E-Bikes
  • Incremental rotary encoding
    • Brushed DC motor feedback
    • Motor speed (Tachometer)
    • Mechanical travel
    • Fluid measurement
    • Knob turning
    • Wheel speed

Functional Block Diagram

Block Diagram - Texas Instruments DRV5015/DRV5015-Q1 Hall Effect Sensors
Opublikowano: 2018-08-08 | Zaktualizowano: 2023-10-30