Unipolar Hall Effect Switch Ics CYD421, Power Supply: 3.8-40V, supply current: 40mA, Operating Temperature: -40 ~+125°C

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CYD421, unipolar Hall effect switch, designed with Bipolar technology, is south sensitive... more
Unipolar Hall Effect Switch Ics CYD421, Power Supply: 3.8-40V, supply current: 40mA, Operating Temperature: -40 ~+125°C

CYD421, unipolar Hall effect switch, designed with Bipolar technology, is south sensitive unipolar Hall Effect switch and includes on-chip Hall element voltage generator, a voltage regulator for operation with supply voltages of 3.8 to 40V, reverse voltage protection, temperature compensation circuitry, smallsignal amplifier, Schmitt trigger and an open-collector output.

The sensor is designed to respond to South poles. While the magnetic flux density(B) is larger than operate point Bop, the output will be turned on with low output level. Then the output is held until the magnetic flux (B) is lower than release point Brp. The output will be turned off with high output level.

Applications

  • Automotive brake pedal position detection
  • Proximity detection
  • Speed measurement
  • Weak magnetic field applications
  • Solid state switches 

Features

  •  3.8V to 40V operation voltage
  • Overvoltage protection capability up to 40 V
  • High accuracy unipolar switch
  • Built-in dynamic offset cancellation
  • Open drain output
  • Low thermal drift of magnetic sensing
  • Qualified according to AEC-Q100 test standard
Operating Temperature: -40°C ~ +125°C
Power Supply: 3.8V ~ 40V
Package/Size: TO92S/4.1x3.18x1.58mm, SOT23-3L/ 2.92 x 1.60 x 1.15 mm
Operation Point: 3.0mT ~ 8.0mT
Release Point: 1.0mT ~ 6.0mT
Hysteresis: 1.0mT ~ 4.0mT
Max. Supply current/voltage: 40mA/60V
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