VF526DT Honeywell

Description

SS520 Series Dual Hall-effect Digital Position Sensor with speed and direction outputs; SOT-89B surface mount package; available in 1,000/tape and reel

Tech Specs

Series Description

The Speed & Direction Hall effect sensor has two distinct Hall sensing elements precisely located 1.4 mm apart on a single integrated circuit chip, which is then encapsulated in a thermoset molding material. Two active Hall latches provide indication of the speed and direction of a magnetic gradient across the face of the package, such as the gradient from a rotating ring magnet. The small, 4-pin SOT89 style package surface mounts on PC boards and flexible circuits.

Built-in temperature compensation is optimized to match the temperature coefficient of low cost magnets and track their performance over temperature. Latching magnetics are standard for reliable operation.

A unique regulator circuit provides extremely stable operation with supply voltages as low as 3.4 Vdc and as high as 24 Vdc. A typical room temperature current consumption of 7.5 mA helps conserve power in battery operation. SS520 series sensors can use existing power supply sources in most applications, and can be directly interfaced with many electronic components without buffering or compensation circuitry.

CAUTION: WAVE SOLDER DAMAGE do not wave solder this product. Wave soldering may negatively affect the sensor performance and reliability. Subjecting the sensor to wave soldering will void Honeywell's warranty. Failure to comply with these instructions may result in product damage.

NOTE: Interruption of power to a latching device may cause the output to change state when power is restored. If a magnetic field of sufficient strength is present, the sensor output will be in the condition dictated by the magnetic field.

Features

• Single miniature plastic package includes two separate Hall sensors
• Frequency signal for speed output
• Logic level (High or Low) signal for direction output
• Temperature compensated magnetics
• Functionality of two discrete Hall sensors and logic circuitry outputs
• Symmetry of operate/release points about zero gauss (bipolar/latching)
• Low current consumption
• Wide operating voltage range

Typical Applications

• Anti-pinch electric motor control systems for power windows, power seats (headrest), power sliding doors, sunroofs, garage door openers.
• Magnetic encoding for electronic steering systems
• Motion control sytems for pulleys & belts
• Position and velocity detection
• Fan control
• Rotating shaft monitoring
• Linear displacement sensing (using a magnetic strip of alternating poles)

About

The Honeywell part VF526DT is distributed by Electrol. The product that you are looking to replace may be brand labeled Microswitch, Hobbs, Honeywell, Data Instruments, Pepperl-Fuchs, Sensym, Senasys, Sensotec or Honeywell-Yamatake, all of which are trade names or previous joint ventures between Honeywell and other partners. The Micro Switch brand is a trade name of Honeywell Sensing & Control headquartered in Freeport Illinois and with manufacturing facilities worldwide including the USA, Mexico, France, Germany, the UK, China and Korea. Electrol has been a distributor of Micro Switch products since 1970.

Honeywell Sensing & Control is a world leader in electro-mechanical switching devices for industry, aerospace, medical and defense. The product line up now also includes sensors for pressure, force, humidity and temperature. Electrol stocks a broad range of Honeywell products for immediate shipment including switching devices for hazardous locations, hermetically sealed switches, pressure transducers and wide range of limit switches for virtually every application.