Product category:
Analogue and Mixed Signal ICs
News Release from: Allegro MicroSystems Europe | Subject: A114X Series
Edited by the Electronicstalk Editorial
Team on 05 May 2004
Hall-effect switches cover the field
The A114X Series from Allegro MicroSystems Europe is a range of two-wire, unipolar, Hall-effect switches with factory programmability for end-of-line optimisation of switch point accuracy.
The A114X Series from Allegro MicroSystems Europe is a range of two-wire, unipolar, Hall-effect switches with factory programmability for end-of-line optimisation of switch point accuracy The devices use a patented high-frequency chopper-stabilisation technique based on Allegro's advanced BiCMOS wafer fabrication process to achieve magnetic stability and to eliminate the offsets inherent in single-element devices and caused by harsh application environments
This article was originally published on Electronicstalk on 30 Aug 2000 at 8.00am (UK)
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The A114X family incorporates on-chip transient protection, with a Zener-diode clamp on the power supply protecting against overvoltage conditions on the supply line.
Robust ESD/EMC protection and reverse battery protection are also included.
The devices have onboard voltage regulation, and are designed for 8-24V operation.
There are four devices in the family: A1140, A1142, A1143 and A1145.
The output of the A1143 devices will switch "high" in the presence of a sufficiently large south-pole magnetic field and "low" with the removal of the field.
The A1140/2/5 devices have the opposite polarity to the A1143, switching "low" in the presence of a sufficiently large south-pole magnetic field.
Two package styles provide a magnetically optimised package for most applications.
A miniature low-profile package (suffix LH) is designed for surface-mount applications, and a three-lead ultraminiature single-inline package (suffix UA) is designed for through-hole mounting.
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