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Home » NEWEST Products » New by Manufacturer » Honeywell Sensing & Control » Honeywell Advanced Magnetic Sensors
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Advanced Magnetic Sensors




Honeywell Sensing & Control introduces Advanced Magnetic Sensors that offer additional functionality over basic Hall-effect or MR devices, such as the reduction of total costs, application flexibility, enhanced accuracy and stability, and simplification of system design.

  • ASP00B is a miniature SMT sensor for linear, angular, or rotary displacement designed for magnetic saturating field sensing.
  • VF401 is a high performance, digital, 2-wire, MR sensor in a miniature, flat, TO-92-style plastic package with a current output, designed for sensing fine pitch ring magnets.
  • VF526DT has 2 Hall sensing elements in a thermoset molding material precisely located 1, 4mm apart on a single integrated circuit chip. 2 active Hall latches provide speed and direction indication of an alternating magnetic field across the face of the package.

APS00B - High Resolution Magnetic Displacement Sensor

Honeywell's APS00B High Resolution Magnetic Displacement Sensor is a miniature surface mount sensor for linear, angular, or rotary displacement designed for magnetic saturating field sensing.

The APS00B creates an analog output voltage that varies with the direction of the magnetic flux passing over the sensor surface. It contains dual, saturated-mode Wheatstone bridges that generate quadrature (sine and cosine) signals to provide an extended range of angular measurements up to 180º.

This APS00B sensor is a cost-effective and space-efficient solution for high-volume OEM designs. Potential applications include position sensing, rotary speed and angle detection, and non-contact precision location measurement systems.


APS00B sensors use Honeywell's Anisotropic Magnetoresistive (AMR) technology that provides advantages over Hall-effect-based magnetic sensors. They are designed to resolve better than a tenth of a degree or a tenth of a millimeter, to withstand large variations in magnet-to-sensor gaps, and to exhibit insensitivity to shocks and vibrations. Honeywell's magnetic sensors are among the most precise and reliable position sensors in the industry.

These surface mount devices are mounted directly on the electrical traces on a PC (Printed Circuit) board. They are attached by an automatic solder reflow operation which requires no hole, so it may help reduce the cost of the PC board.

APS00B Datasheet

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Features and Benefits
  • Wide, angular range allows measurements of ±90º without additional components, making this device suitable for a variety of angular sensing applications. Measurements of ±180º are possible with external components.
  • Resolution capability of less than 0.05º enhances overall system accuracy.
  • Absolute sensing means no indexing is required and the exact target position is known, which can simplify the system design.
  • Dual Wheatstone bridges provide a passive, low-noise design, enhancing system performance.
  • Small, 8-pin surface-mount package saves room on the PC board when compared to larger IC (Integrated Circuit) packages and components.
  • RoHS-compliant materials meet Directive 2002/95/EC.

  • Tape and reel configuration allows use with automated pick-and-place equipment, potentially reducing assembly costs (178mm [7in] and 330mm [13in] reels available).
  • Typical 0MHz to 5MHz frequency response with 190G minimum magnetic field applied makes this saturated mode sensor potentially suitable for high speed applications.
  • Typically requires only 5V at 4mA to operate (20mW), promoting energy efficiency.
  • The sensors measure only field direction and are virtually unaffected by shock, vibration and magnetic-source gap variations, providing a stable, reliable output.
  • Dual bridges with outputs 45º out of phase make it possible to use outputs as speed and direction signals.
  • Honeywell APS00A instrumentation amplifier is available separately for additional signal processing.
Potential Applications
Transportation
  • High accuracy angular position sensing
  • Rotary speed and angle detection
  • Non-contact precision displacement sensing
  • Speed and direction sensing

Industrial
  • High accuracy position sensing
  • Rotary speed and angle detection
  • Non-contact precision displacement sensing
  • Valve position
  • Robotics control

Medical
  • High accuracy position sensing
  • Rotary speed and angle detection
  • Non-contact precision displacement sensing

Absolute Maximum Ratings1
Characteristic Min. Max. Unit
Supply Voltage
-12 +12 V
Power dissipation
-- 200 mW
Operating temperature
-55 [-67]
150 [302]
ºC [ºF]
Magnetic flux
no limit
Gauss
1 Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings.

Specifications (At Vs =5.0 V and Ta = 25ºC [77ºF] unless otherwise noted.)1
Characteristic Condition Min. Typ. Max. Unit
Supply voltage - 1 5 12 V
Operating temperature - -40 [-40] - 150 [302] ºC [ºF]
Bridge resistance bridges are connected in parallel 0.9 1.25 1.6 kOhm
Supply current - - 4 7 mA
Sensitivity - - 2.1 2.3 mV/º
Angle range B > saturation field -90 - 90 º
Resolution - - 0.05 - º
Max output amplitude - 47.5 57.5 67.5 mV
Min output amplitude - -47.5 -57.5 -67.5 mV
Output amplitude (peak to peak) - 95 115 135 mV
Offset voltage - -1 - 1 mV/V
Amplitude change from 25ºC 140ºC [284ºF] -34 - -43 %
Amplitude change from 25ºC -40ºC [-40ºF] 24 - 31 %
Offset shift - -2 - 2 mV
Synchronism (Amp A/Amp B) * 100 97 - 103 %
Synchronism shift - -1 - 1 %
Saturation level <10ìV/Gauss amplitude change 60 190 - Gauss
Bandwidth - - 0 to 5 - MHz
1 To test the sensor against the specified magnetic characteristics, the sensor must be placed in a uniform magnetic field.


VF401 - 2-Wire MR Fine-Pitch Ring Magnet Sensor

Honeywell's VF401 is a high performance, digital, 2-wire, MR (magnetoresistive) sensor in a miniature, flat, TO-92-style, plastic package with a current output, designed for sensing fine pitch ring magnets.

The unique VF401 bridge array (patent number 6,297,628) has been optimized to allow a greater air gap between the target and the sensor with reduced loss in sensor signal or accuracy.

VF401 Datasheet


The VF401 has a reduced sensitivity to run-out (shift in sensor position relative to the inside or outside diameter of the ring magnet). It is also less sensitive to tilt tolerance (deviation from parallel positioning of the sensing elements and ring magnet), accepting up to 10º, versus only 2º to 3º for typical ring magnet sensors, as well as being less sensitive to twist (deviation of perfect angular position of the bridge runners relative to the pole transitions).

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Features and Benefits
Potential Applications
  • Robust design operating from -40ºC to 150ºC [-40ºF to 302ºF] can withstand short durations up to 175ºC [347ºF], allowing use in potential applications with extreme temperature requirements.
  • Not damaged by reverse polarity voltages when customer-supplied sense resistor is installed, enhancing protection.
  • Patented MR bridge optimized for stable sensing of 20- to 50-pole pair ring magnets with improved insensitivity to run-out, tilt, and twist.
  • 2-wire digital current output simplifies wiring and interfacing which can reduce total system cost.
  • Enhanced sensitivity, ±7 Gauss typical, allows for larger air gaps (up to 2.5mm [0.098in]) and higher pole density (up to 50-pole pairs depending on ring diameter).
  • One pulse per pole pair output and differential bridge operation allow compatibility with differential Hall sensors which can make it easier to upgrade existing applications.
  • Wide speed capability provides application flexibility with true zero speed sensing and operation up to 3000Hz.
  • Output pattern independent of gap between target and sensor.
  • RoHS-compliant materials meet Directive 2002/95/EC.

Transportation
  • Speed encoding using a multipole ring magnet
  • Enhanced accuracy rotational position sensing
  • Wheel speed sensing
  • Window lift applications
  • Speed and direction sensing
Industrial
  • Shaft speed encoding using a multipole ring magnet
  • Enhanced accuracy rotational position sensing
  • Precision motor speed measurement
  • Speed control in machine tools
  • Elevator speed sensing
  • Speed control in motorized industrial equipment
Medical
  • Shaft speed encoding using a multipole ring magnet


Absolute Maximum Ratings1

Characteristic Min. Typ. Max. Unit
Supply Voltage2
-18-
+18
V
Magnetic flux gauss
no limit
Temperature
--
175 [347] for 10 min at 10 cycles
ºC[ºF]
Frequency
--
3000Hz
1 Absolute maximum ratings are the extreme limits that the device will momentarily withstand without damage to the device. Electrical and mechanical characteristics are not guaranteed if the rated voltage and/or currents are exceeded nor will the device necessarily operate at absolute maximum ratings.
2 Customer-supplied sense resistor is required for negative reverse voltage.


Specifications (Established using a 65,00 mm [2.559 in] diameter, 48-pole pair ring magnet.)
Characteristic Condition Min. Typ. Max. Unit
Vcc1 - - - - V
Vh (V+ to V-) - 4.5 - 16 V
Icc operate - 11.8 14 16.8 mA
Icc released - 5.9 7 8.4 mA
Icc ratio (op/rel) - 1.9 2 2.3 -
Rise time, 10% to 90% Vcc = 12V, RL = 150 Ohm, CL = 1000pF, 25ºC [77ºF] - 1.5 - µs
Fall time, 10% to 90% Vcc = 12V, RL = 150 Ohm, CL = 1000pF, 25ºC [77ºF] - 1.5 - µs
Operating temperature - -40 [-40] - 150 [302] ºC [ºF]
Differential magnetic field over entire MR bridge area:
operate
release
- - +7
-7
- Gauss
Air gap2 - 0.75 [0.030] - 2.5 [0.098] mm [in]
Duty cycle - 30 50 70 %
1 Vcc is limited by Vh and the value chosen for the sense resistor.
2 Sensor operation at limits for air gap is dependent on ring magnet.

ESD and EMC Performance
Test Specification Condition Results
ESD (Electrostatic Discharge)
GMW3100GS - Class 3 (low sensitivity)
Electrical Transient Transmission
ISO 7637-3
electrical capacitance and inductive coupling
Class B1
Radiated Immunity
ISO 11452-3
0.1MHz to 12GHz, 80% AM at 1kHz
Class A2 at 100V/m
1 Class B: One or more functions may be out of specification during disturbance, but will automatically return to normal after exposure is removed.
2 Class A: All functions remain within specification during and after exposure to disturbance.

VF526DT - Bipolar Latch, Dual Hall-effect Digital Position Sensor

with Speed and Direction Outputs

Honeywell's VF526DT Bipolar Latch, Dual Hall-effect Digital Position Sensor has two distinct Hall sensing elements precisely located 1.4mm [0.055in] 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.

VF526DT Datasheet


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 3.4Vdc to 24Vdc. It can directly interface with many electronic components without buffering or compensation circuitry.

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Features and Benefits

Potential Applications
  • Temperature-compensated magnetics and ultra-low offset drift with temperature provides a stable output over a full temperature range of -40ºC to 125ºC [-40ºF to 257ºF].
  • Single, miniature 4-pin SOT-89B plastic package supplied on tape and reel for automated assembly, allowing potential savings in PC board space and labor cost.
  • Two separate built-in Hall sensors and their associated logic circuitry provide a frequency signal for speed output and a logic level (high or low) signal for direction output, potentially replacing multiple sensors and electronic components.
  • Wide operating voltage range of 3.4Vdc to 24Vdc increases application flexibility.
  • Tested to moisture sensitivity similar to JEDEC J-STD-020B, MSL Level 1, allowing the VF526DT to be used in environments where humidity may be a problem.
  • RoHS-compliant materials meet Directive 2002/95/EC.

Transportation
  • Anti-pinch electric motor control systems for:
    • Power windows
    • Power seats (headrest)
    • Power sliding doors
    • Sunroofs
  • Magnetic encoding for electronic steering systems
Industrial
  • Motion control systems for pulleys and belts
  • Garage door openers and sliding doors
  • Position and velocity detection in industrial equipment
  • Linear displacement sensing (using a magnetic strip of alternating poles)

Absolute Maximum Ratings1
Characteristic Sym. Min. Max. Unit
Supply voltage Vcc -0.5 30 V
Output voltage (OFF) Vout -0.5 30 V
Output ON current Iout - 10 mA
Storage temperature Ts -65 [-85] 160 [320] ºC [ºF]
Operating temperature T -40 [-40] 150 [302] ºC [ºF]
ESD: IEC 801-2, Lev 1 MIL-STD-883, Method 3015.7 ESD 2 4 - - KV
Magnetic flux
no limit -
1 Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings.

Specifications
Characteristic Sym. Condition Min. Typ. Max. Unit
Magnetic actuation type bipolar latch
Output type dual open collector, sinking (speed and direction)
Supply voltage Vcc - 3.4 - 24 Vdc
Operating temperature Temp Vcc = 3.4V to 24V -40 [-40] - 125 [257] ºC [ºF]
Supply current (OFF) Ioff Vcc = 24V, -40ºC < T < 125ºC, Vout = 24V, B <MIN REL - - 12 mA
Supply current (ON) Ion Vcc = 24V, -40ºC < T < 125ºC, Isink = 5mA, B <MAX OP - - 14 mA
Load current Isink Vcc = 24V, -40ºC < T < 125ºC, Isink = 5mA, B <MAX OP - - 5 mA
Output saturation Vsat Vcc = 24V, -40ºC < T < 125ºC, Isink = 5mA, B <MAX OP - - 0.4 V
Circuit speed to direct delay Td Vcc = 12V, RL = 1.6kOhm,
CL = 20pF
- - 5 µs
Rise time Tr Vcc = 12V, RL = 1.6kOhm,
CL = 20pF
- - 1.5 µs
Fall time Tf Vcc = 12V, RL = 1.6kOhm,
CL = 20pF
- - 1.5 µs
Frequency Top Vcc = 12V, RL = 1.6kOhm,
CL = 20pF
<1 - >1000 Hz
Operate point Bop T = 25ºC -40ºC < T < 125ºC - 60 130 - - 200 Gauss
Release point Brel T = 25ºC -40ºC < T < 125ºC - -60 -130 - - -200 Gauss
Differential (OP-REL) Diff T = 25ºC -40ºC < T < 125ºC - 200 260 - - 320 Gauss
Symmetry ([OP +REL]/2) Sym T = 25ºC -40ºC < T < 125ºC - -65 0 - - 65 Gauss
Package style SOT-89B
Moisture sensitivity test similar to JEDEC J-STD-020B, MSL Level 1
Package quantity available in 1000/tape and reel










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