Product category:
Position, speed and torque measurement
News Release from: Allegro MicroSystems Europe | Subject: A120x
Edited by the Processingtalk Editorial
Team on 08 July 2005
Hall-effect switches are
higher-performance
The new A120x family of ultra-sensitive bipolar Hall-effect switches from Allegro MicroSystems Europe are next-generation drop-in replacements for the popular Allegro A313x family
The new A120x family of ultra-sensitive bipolar Hall-effect switches from Allegro MicroSystems Europe are next-generation drop-in replacements for the popular Allegro A313x family The A120x family, produced using the latest Allegro BiCMOS technology, comprises continuous-time devices which feature fast power-on time and low-noise operation
This article was originally published on Processingtalk on 2 Feb 2004 at 8.00am (UK)
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These devices are programmed after packaging, at final test, providing tighter switchpoint ranges than the earlier A313x line of bipolar switches.
All devices in the A120x family are identical except for the magnetic switchpoint levels.
To avoid sliver pulses, the A120x device has a 1.5 microsecs blanking pulse, yet its power-on time still passes the datasheet specification limit of 4 microsecs maximum.
The rise and fall times are well within the 2 microsecs maximum specified on the datasheet.
Saturation voltage is below the 400 mV maximum specification limit at a sink current of 20 mA over the full operating temperature range.
The distributions of the A120x magnetic operate and release points are tighter at most temperature than those of the A313x, as is the distribution of switchpoint hysteresis and supply current.
The V-I curve of the A120x offers overvoltage protection to 30 V and reverse battery protection beyond -30 V.
The A120x family is available in pin-compatible packages to the earlier range, including lead (Pb) free versions with 100% matte-tin leadframe plating.
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