DRV5015 Hall Effect Latch

By Texas Instruments 334

DRV5015 Hall Effect Latch

Texas Instruments' DRV5015 is a low-voltage digital-latch Hall effect sensor designed for high-speed and high-temperature motor applications. Operating from a 2.5 V to 5.5 V 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 is offered in two magnetic threshold options and an inverted output option. The high-magnetic sensitivity provides flexibility in low-cost magnet selection and component placement.

The device performs consistently across a wide ambient temperature range of -40°C to +125°C.

Features
  • Digital-latch Hall effect sensor
  • High-magnetic sensitivity:
    • DRV5015A1: ±0.7 mT (typ.)
    • DRV5015A2: ±1.8 mT (typ.)
    • DRV5015A3: ±1.8 mT (inverted, typ.)
  • Integrated hysteresis
  • Fast 30 kHz sensing bandwidth
  • 2.5 V to 5.5 V operating VCC range
  • Open-drain output capable of 20 mA output current
  • Operating temperature range: -40°C to +125°C
Applications
  • Incremental rotary encoding:
    • Brushed DC motor feedback
    • Motor speed (tachometer)
    • Mechanical travel
    • Fluid measurement
    • Knob turning
    • Wheel speed
  • Brushless DC motor sensors
  • E-bikes

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