The HAL 24xy family of high precision programmable linear Hall-effect sensors are designed to match the performance, diagnostic and reliability requirements of today’s most demanding automotive applications. The devices offer a highly improved linearization by incorporating a flexible output compensation function with 16 programmable set points — enabling system costs to be reduced by using smaller magnets or increasing distance measurements while keeping their existing solution.
In addition, angles up to 180° can be measured even with a simple magnet configuration. The family has an integrated non-volatile memory (reliable, up to a maximum junction temperature of 170°C) to store all sensor parameters.
The sensor’s high accuracy is based on a sophisticated 16-bit signal path with an integrated DSP core delivering a ratiometric 12-bit analog output signal. Unlike other sensors on the market, the HAL 24xy does not need a dedicated programming pin. Instead commands are sent directly via the bi-directional output pin.
It also features enhanced diagnostic functions and a cyclical redundancy check which monitors the communication protocol.All members of the RoHS-compliant HAL 24xy family are available in the TO92UT package and operate between –40° and 160°C with standard 5 V supply voltage.
The family offers a 8-kV (HBM) rating and are fully qualified according to the automotive standard AECQ100.(Contact company for pricing — prod qty, early 2013; samples, Sep 2012)
By Christina Nickolas
Micronas , Freiburg , Germany
Information 011-49-761-517-2324
http://www.micronas.com
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