Programmable linear Hall sensor for efficient position management
November 07, 2012 // Christoph Hammerschmidt
Micronas has expanded its sensor product range with the high-precision programmable HAL 2420 and HAL 2425 Hall-effect sensors. With these first members of the HAL 24xy family, the company offers robust sensor solutions featuring high temperature stability and including wide-ranging diagnosis functions and effective protective circuitry.
The HAL 24xy family is based on Micronas' semiconductor technology with new digital architecture and further enhanced Hall elements. The HAL 2425 and HAL 2420 are particularly suitable for use in vehicles representing the ideal solution for detecting throttle valve and accelerator position, and for exhaust gas recirculation. Other typical applications include angular measurements up to 180°, any types of position detection and the wear-free replacement of conventional potentiometers.
As the distance information gained is in principle subject to certain deviations, the HAL 2425 is capable of linearizing the output signal using 16 setpoints with 12 bit accuracy. For the storage of the needed parameters, the sensor is equipped with a very temperature-resistant EEPROM which operates reliably over the complete junction-temperature range from -40 °C to 170 °C.
The higher linearity of the output signal, achieved by using a more flexible output compensation, enables customers to lower their system costs. Another advantage is the saving in space and cost by using smaller magnets. Customers also have the option of measuring larger distances while maintaining their existing solutions, the company said.
Both the HAL 2425 and the HAL 2420 have an enlarged feature set for detecting and identifying potential sources of errors. The range of diagnosis functions includes detecting and signalling wiring problems, locating short circuits at the output stage and various self-tests across the entire sensor signal path and the memory environment. Being a member of the HAL 24xy family, the new sensors also offer a high degree of ESD and EMC protection. With 8 kV (HBM), they outperform most sensor solutions currently available on the market.
Both the HAL 2425 and the HAL 2420 can be programmed directly via the bidirectional output pin by varying the supply voltage without the need for a separate programming pin.
The HAL 24xy sensors are available in the moldable TO92-UT package. First samples of the HAL 2420 with analog output and somewhat simpler compensating function have been available since October 2012. The HAL 2425 will see its market launch in the course of November 2012. Start of production is scheduled for the second quarter of 2013.
Micronas will present the HAL 2420 and HAL 2425 sensors from November 13 to 16 at the electronica in Munich (hall A6, booth 215).
Hydrogen power enters the call center
May 23, 2013
A UK startup has had significant success with its hydrogen-powered power system as an uninterruptible power supply for call ...
Brussels Calling: Qualcomm wins in a wasteful industry
Europe in 10 billion € bid to boost chip industry
Nujira surpasses own world record for ET PA linearity
Silica moves to fast lane in Europe's LED market
Intel's new CEO shakes things up
May 23, 2013
Newly minted Intel Corp. CEO Brian Krzanich wasted little time putting his stamp on the company he has worked for for more ...
Wide-angle lens is less than 3mm high for the same diameter
Low-power wireless projected to make waves in remote controls according to IMS Research
Intel pushes for more research beyond 10-nm
InterviewSilica moves to fast lane in Europe's LED market
In the booming market for LED lighting, electronics distributor Silica intends to lead the pack by offering technological excellence at application level. The company is currently planning to offer tailor-made ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
The development platform for i.MX 6Quad from element14 (built to the Freescale SABRE Lite design) is an evaluation platform featuring the powerful i.MX 6Q, a multimedia application processor with Quad ARM Cortex-A9 cores at 1.2 GHz from Freescale Semiconductor.
This month, Freescale and element14 are giving away five such platforms, worth £128.06 each, for EETimes Europe's readers to win. The platform helps evaluate the rich set of peripherals and includes a 10/100/Gb Ethernet port, SATA-II, HDMI v1.4, LVDS, parallel RGB interface, touch screen interface, analog headphone/microphone, micro TF and SD card interface, USB, serial port, JTAG, camera interface, and input keys for Android.
And the winners are...
In our previous reader offer, Pico Technology was giving away one of its recently launched PicoScope 3207B, a 2-channel USB 3.0 oscilloscope worth 1451 Euros. Lucky winner Mr L. Sanchez-Gonzalez from Spain should be receiving his PicoScope 3207B soon. Let's wish them some interesting findings with his projects.
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.