Product category:
Automotive Industry Process News
News Release from: Allegro MicroSystems Europe | Subject: IAEC Exhibition in Paris
Edited by the Processingtalk Editorial
Team on 03 August 2004
Leading-edge automotive sensor and motor
drive ICs
At the Automotive Electronics Congress in Paris, Allegro is featuring a number of leading-edge developments in transmission sensing, cam and crank sensing, current sensing and motor-driver ICs
At the International Automotive Electronics Congress in Paris, Allegro MicroSystems Europe is featuring a number of leading-edge developments in transmission sensing, cam and crank sensing, current sensing and motor-driver integrated circuits New developments in transmission sensing include Hall-effect gear-tooth sensor modules featuring new algorithms for vibration detection and compensation as well as features such as automatic offset adjustment, running-mode automatic gain control and a 'burp' mode which centres the signal at start-up
This article was originally published on Processingtalk on 2 Feb 2004 at 8.00am (UK)
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Allegro MicroSystems Europe has introduced two new families of translator/driver integrated circuits, which provide the complete control and drive functions for two-phase unipolar stepper motors
DMOS full-bridge motor driver IC
New from Allegro MicroSystems Europe, the A3949 is a DMOS full-bridge motor driver integrated circuit designed for the PWM (pulse-width-modulated) control of DC motors
These new devices complement the recently introduced ATS643 and ATS647 gear-tooth sensor modules.
Also featured is the Allegro ACS750 family of fully integrated current sensors, offering high-power current sensing at current ratings of up to 100 A from a very compact package.
The unique current sensing assembly includes a high current conductor, ferrite core, and an optimised monolithic Hall IC in the smallest integrated current sensing package in the industry.
The magnetic field, created by the current passing through the ultra low-resistance power lead frame, is concentrated by a ferrite core and measured by the sensing element of the Hall IC.
Factory programming of the Hall IC provides high accuracy and linearity over temperature, and the optimised package design achieves high dielectric isolation.
A technical paper being presented at the Congress features a new high-temperature gate controller integrated circuit for automotive fractional horsepower motors in 'underhood' applications.
Allegro's new Power Management Division will also show an automotive multiple output voltage regulator IC.
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