Allegro MicroSystems Europe has announced a low-voltage family of AEC-Q100 qualified three-wire Hall-effect latches. The APS12205, APS12215, and APS12235 are produced on the Allegro™ advanced BiCMOS wafer fabrication process, which implements a patented high-frequency chopper stabilisation technique. This technique achieves magnetic stability over the full operating temperature range, and eliminates offsets inherent in devices with a single Hall element that are exposed to harsh application environments.
This new family of devices is ideal for systems where the sensor ICs will be behind a voltage regulator or that do not require double battery or reverse battery protection.
The APS122x5 family was optimised for the speed and position sensing of ring-magnets (motors/encoders) or other moving/rotating assemblies and is targeted at 2.8 to 5.5 V automotive and industrial markets. Key end-applications include motor commutation and speed and direction sensing in automotive window lifts, sunroofs and tail-/lift-gates; white goods; automated window blinds; garage door openers; sliding doors; etc.
The new APS12205, APS12215, and APS12235 have the same package, pinout, and magnetic characteristics as the industry-standard A1220, A1221, and A1223, respectively. They are qualified to the same standards, e.g., AEC-Q100, and can operate at temperatures up to 175C°.
All family members are offered in two package styles. The LH is a SOT-23 W style, miniature, low-profile package for surface-mount applications. The UA is a 3-pin, ultra-mini, single inline package (SIP) for through-hole mounting. Both packages are lead (Pb) free, with 100% matt-tin leadframe plating.
The APS122x5 family of Hall-effect switches are available with a choice of magnetic switch-points and package. The APS122x5 family of devices complements Allegro’s industry standard A122x family by offering 3.3/5V specific devices.
Allegro MicroSystems, LLC is a leader in developing, manufacturing and marketing high-performance semiconductors. Allegro’s innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centres located worldwide. Further information about Allegro can be found at www.allegromicro.com
Allegro MicroSystems Europe, headquartered in Chertsey, United Kingdom, is the European sales and marketing operation, and operates a network of representatives and distributors throughout Europe. Allegro has technical and marketing centres in Heidelberg and Hinterzarten in Germany. Allegro also has an engineering design centre in Edinburgh in Scotland and a technical and marketing centre in Annecy in France.