Texas Instruments DRV5011 3.8mT 5.5V Hall Effect Latches

Texas Instruments DRV5011 3.8mT 5.5V Hall Effect Latch has an efficient low-voltage architecture and is designed for motors and other rotary systems. More compact systems are enabled by the output being a push-pull driver that requires no pull-up resistor. The device drives a low voltage when a south magnetic pole is near the top of the package, and the BOP threshold is exceeded. The output stays low until a north pole is applied and the BRP threshold is crossed. This causes the output to drive a high voltage. The DRV5011 provides robust switching with the integrated Hysteresis separating BOP and BRP. Then alternating north and south poles are required to toggle the output. The device operates consistently across a wide ambient temperature range of –40°C to +135°C.

Features

  • Ultra-small X2SON or SOT-23 package
  • ±2mT (Typical) high magnetic sensitivity
  • 4mT (Typical) robust Hysteresis
  • Fast 30kHz sensing bandwidth
  • 2.5V to 5.5V Operating VCC range
  • Push-pull CMOS output
    • Capable of 5mA sourcing, 20mA sinking
  • –40°C to +135°C Operating temperature range

Applications

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

Typical Schematic

Schematic - Texas Instruments DRV5011 3.8mT 5.5V Hall Effect Latches
Publicado: 2018-11-15 | Actualizado: 2023-10-30