MLX90217
MLX90217
Hall Effect Sensor IC from Melexis Semiconductors
Features
The MLX90217 is a self adjusting digital output rotary position gear tooth sensor IC designed for use in automotive camshaft sensing as well as other speed sensing applications. It is designed to be used with a bias magnet south-pole facing the non-marked side of the IC. The device has an open collector output which is short circuit protected.
The device is very sophisticated, featuring an on-chip 10-bit A-to-D Converter and logic that acts as a digital sample and hold circuit. A separate 4-bit A-to-D converter provides a fixed hysteresis.
The MLX90217 does not have a chopper delay and uses a single hall plate which is immune to rotary alignment problems. The bias magnet can be from 50mT to 400mT.
As the signal is sampled, the logic recognizes an increasing or decreasing flux density. The output will turn ON after the flux has reached its peak and decreased by an amount equal to the hysteresis. Similarly the output will turn OFF after the flux has reached its minimum value and increased by an amount equal to the hysteresis.
Support documents for the MLX90217
Below is the support information available for the MLX90217 - select a link to download the relevant documentation.
APNO-0025 - Hall Application Note
Application Notes for Melexis Hall Effect ICs
Dated : 10 November 2005 ( Uploaded )
Relevant to : Melexis Semiconductors - Semiconductors - Hall Effect
DATA-0208 - Product Datasheet
Product Datasheet for the Melexis MLX90217 Hall Effect Sensor IC
Dated : 22 December 2005 ( Uploaded )
Relevant to : MLX90217
News information for the MLX90217
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