AK7401 / 7405 - HIGH SPEED ROTARY ANGLE SENSOR

20. June 2018 | Planegg

Automotive qualified 12-bit angle sensor

Solutions

Features/Benefits

  • Monolithic integrated 360 degrees angle sensor IC containing hall element.
  • Easy to make a contactless rotation sensor with diametrically magnetized mono-pole magnet.
  • Interfaces:SPI(Absolute Angle), ABZ phase output(1024ppr Incremental interface)
  • 12bit angle resolution
  • Less than ±1.00deg angle accuracy at 25℃
  • Maximum tracking rate:333rps(20,000rpm)
  • Over voltage protection
  • Reverse connect protection
  • Various abnormal detection(memory data check, abnormal magnetic flux density range and so on)
  • Setting function like zero point, rotation direction, ABZ resolution/hysteresis etc. via serial interface

The non-contact angle sensors AK7401/05 have a resolution of 12-bit and are automotive-qualified. Both detect the angular position of a magnetic field parallel to the IC surface. The devices differ in signal interfaces and maximum rotational speed detection, with the AK7405 detecting speeds up to ≤20,000 rpm.

Applications:

Automotive:

  • Pedal position sensor
  • Steering angle sensor
  • Valve position
  • Wiper motor controlensor,
  • Headlamp position control
  • Seat position motor
  • Side mirror control
  • Electric power steering motor control
  • Fuel level sensor, main/sub motor control

 

Consumer:

  • Compact absolute rotary encoder
  • Compact input device (mode selector, control volume)
  • Substitute for potentiometer
  • Rotary switch

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