Unipolar Switches offer various packaging options.
Press Release Summary:
Produced with BiCMOS technology, A110x family includes A1101/02/03/04/06 Hall-effect switches that are packaged in 3-pin single in-line and 3-pin SMT packages (LH). Continuous-time unipolar switch family, with option for Pb-free plating, include voltage regulator, Hall-voltage generator, small-signal amp, Schmitt trigger, and NMOS output transistor on one silicon chip. On-board protection circuitry allows ±30 V absolute max voltage rating.Original Press Release:
Allegro Microsystems, Inc. Replaces Unipolar Switch Family for Improved Performance and Additional Packaging Options
Worcester, MA, June 20, 2005 - Allegro MicroSystems, Inc. introduces the A110x family, which is intended not only to replace our legacy A314x and A312x families of unipolar switches with improved performance, but also to offer our customers a wider variety of packaging options. Additionally, for the first time with our continuous-time unipolar switch family, Allegro is offering an option for Pb-free plating to comply with various international standards.
Allegro's A1101/02/03/04/06 Hall-effect switches, produced with BiCMOS technology, consist of devices that feature fast power-on time and low noise operation. Device programming is performed after packaging to ensure increased switchpoint accuracy by eliminating offsets that can be induced by package stress. Unique Hall element geometries and low-offset amplifiers help to minimize noise and reduce the residual offset voltage normally caused by device overmolding, temperature excursions and thermal stress.
The A110x Hall-effect switches include the following on a single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator permits operation from 3.8 to 24 V. The extensive on-board protection circuitry makes possible a ±30 V absolute maximum voltage rating for superior protection in automotive and industrial motor commutation applications, without adding external components. All devices in the family are identical except for magnetic switchpoints.
New packaging selections for this product line offer customers more options in design, while an extended temperature range is available for automotive and industrial markets. Targeted to the consumer, computer/office, industrial and automotive markets, the A110x family is provided in a three-pin single in-line package (UA) and a three-pin surface-mount package (LH). For quantities of 10,000, the A110x is priced between $0.39 and $0.61 depending on root and temperature range. The leadtime for both packages is 14-16 weeks.
Allegro MicroSystems, Inc. is a supplier of advanced mixed-signal power semiconductors and Hall-effect sensors targeted toward the automotive, communications, computer/office automation, consumer and industrial markets. It maintains a leadership position in the integrated magnetic sensor and integrated motor driver product segments. With over 2,000 employees, Allegro is headquartered in Worcester, MA. Further information about Allegro, including free samples of our products, can be found at www.allegromicro.com.
