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Overview

SS520 Series dual Hall-effect digital position sensor IC with speed and direction outputs, SOT-89B, 1000 units/pocket tape and reel.The VF526DT Bipolar Latch, Dual Hall-effect Digital Position Sensor has two distinct Hall sensing elements precisely located 1,4 mm [0.055 in] apart on a single integrated circuit chip. The elements are encapsulated in a thermoset molding material. The two active Hall latches provide speed and direction indication of a magnetic gradient (such as a rotating ring magnet) across the face of the package. The miniature, 4-pin SOT-89B package surface mounts on PC (Printed Circuit) boards and flexible circuits. The VF526DT’s built-in temperature compensation is designed to match the temperature coefficient of low-cost magnets, allowing for a reliable, yet cost-effective, sensor-magnet combination. A unique, regulator circuit provides extremely stable operation with supply voltages from 3.4 Vdc to 24 Vdc. It can directly interface with many electronic components without buffering or compensation circuitry.

A built-in regulator provides very stable operation over 4.5 Vdc to 24 Vdc supply voltage range, and internal circuitry prevents sensor damage in case the supply voltage polarity is accidentally reversed. The SS50AT Series Low-Cost Bipolar Hall-Effect sensors are small, versatile digital Hall-effect devices that are operated by the magnetic field from a permanent magnet or an electromagnet. The open-collector sinking output voltage is easily interfaced with a wide variety of electronic circuits.

NOTE: The integrated circuitry provides excellent temperature stability and accuracy in a robust design. These digital Hall sensors have an operating temperature range of -40 °C to 125 °C [-40 °F to 257 °F], appropriate for commercial, consumer, and industrial environments.

Technical Specifications

Series Name SS520
Product Type Hall-effect digital position sensor IC
Magnetic Actuation Type Latching
Supply Voltage 3.4 Vdc to 24 Vdc
Output Voltage 0.4 Vdc max.
Supply Current 14 mA
Output Current 5 mA max. per output
Leakage Current 10 µA max.
Output Type Sinking
Operating Temperature -40°C to 150°C [-40°F to 302°F]
Storage Temperature -40°C to 165°C [-40°F to 329°F]
Operate Point 130 G typ.
Release Point -130 G typ. (25°C)
Differential 260 G typ.
Package Type SOT-89B, pocket tape and reel, 1000 units/reel
Switching Time Rise (10 % to 90 %) 1.5 µs max.
Switching Time Fall (90 % to 10 %) 1.5 µs max.
Operating Frequency 0 Hz min. to 10000 Hz max.
Availability Global

Technical Specifications

Series Name SS520
Product Type Hall-effect digital position sensor IC
Magnetic Actuation Type Latching
Supply Voltage 3.4 Vdc to 24 Vdc
Output Voltage 0.4 Vdc max.
Supply Current 14 mA
Output Current 5 mA max. per output
Leakage Current 10 µA max.
Output Type Sinking
Operating Temperature -40°C to 150°C [-40°F to 302°F]
Storage Temperature -40°C to 165°C [-40°F to 329°F]
Operate Point 130 G typ.
Release Point -130 G typ. (25°C)
Differential 260 G typ.
Package Type SOT-89B, pocket tape and reel, 1000 units/reel
Switching Time Rise (10 % to 90 %) 1.5 µs max.
Switching Time Fall (90 % to 10 %) 1.5 µs max.
Operating Frequency 0 Hz min. to 10000 Hz max.
Availability Global

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
VF526DT Latching Dual Hall-Effect Digital Postion Sensor IC with Speed and Direction Outputs Datasheet English 241KB
VF526DT Bipolar Latch, Dual Hall-Effect Sensors with Speed and Direction Outputs Installation Instructions English 227KB
SOT-89B highres photo Photo -- 336KB
SOT-89B lowres photo Photo -- 55KB
Magnetic Sensor IC SOT-89B CAD Model CAD Model -- 175KB
Speed Sensors Range Guide Product Range Guide English 767KB
Position Sensors Range Guide Product Range Guide English 1MB
Magnetic Sensors Product Line Guide English 377KB
Magnetic Sensor IC Selection Chart Line Card/Selection Chart English 140KB
Magnetic Sensor IC Product Line Card Line Card/Selection Chart English 218KB
MG Series Magnets Datasheet English 464KB
Sensors and Switches for Potential Medical Applications Product Range Guide English 2MB
Sensors and Switches for Potential Medical Applications Application Note English 883KB

Product Features

  • Miniature construction: SOT-89B plastic package, on tape and reel for automated assembly
  • Power comsumption of only 5 mA max at 4.5 Vdc for energy efficiency
  • Digital current sinking output
  • Bipolar magnetics for ring magnet applications
  • High output current capability (20 mA)
  • High speed—Operates from 0 kHz to over 100 kHz
  • Broad temperature range of -40 °C to 125 °C [-40 °F to 257 °F]
  • Built-in reverse polarity protection

Applications

  • Speed and RPM sensor
  • Brushless DC motor commutation
  • Motor and fan control
  • Magnetic encoding
  • Tachometer, counter pickup
  • Disc speed, tape rotation sensing
  • Flow-rate sensing

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