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August 01, 2015 5:20 AM ET

Semiconductors and Semiconductor Equipment

Company Overview of Allegro Microsystems, Inc.

Company Overview

Allegro MicroSystems, LLC develops, manufactures, and markets high-performance analog and mixed-signal semiconductors for automotive, appliance, lighting, consumer electronics, energy-efficient solutions, and industrial applications. It offers magnetic linear and angular position sensor integrated circuits (ICs); magnetic digital position sensor ICs, such as hall-effect latches and bipolar switches, hall-effect unipolar switches, dual element switches, and micropower switches and latches; and current sensor ICs, including integrated conductor sensor ICs, SIP package sensor ICs, integrated conductor sensor ICs, and high-side hot-swap hall effect based current monitor ICs. The company also off...

115 Northeast Cutoff

Worcester, MA 01615

United States

Founded in 1990

2,683 Employees

Phone:

508-854-5224

Fax:

508-853-2431

Key Executives for Allegro Microsystems, Inc.

Chief Executive Officer, President and Director
Age: 65
Chief Financial Officer, Principal Accounting Officer and Vice President
Age: 62
Vice President of Operations and Vice President of Quality
Age: 58
Executive Vice President, Director, Member of Nominating/Corporate Governance Committee and Member of Compensation Committee
Age: 56
Vice President of Technology Development
Age: 67
Compensation as of Fiscal Year 2015.

Allegro Microsystems, Inc. Key Developments

Allegro MicroSystems, LLC Announces New Vertical Hall-Effect Sensor IC

Allegro MicroSystems, LLC announced a new Vertical Hall-effect Sensor IC that is an extremely temperature-stable and stress-resistant magnetic sensing device ideal for harsh operating environments. Allegro’s A1260 is actuated by alternating north and south polarity magnetic fields in plane with the device’s branded face rather than perpendicular to the branded face, as in a traditional Hall-effect sensor. This enables system designers to achieve new mechanical configurations not feasible with traditional planar Hall sensors, including replacing through-hole SIP devices with tiny surface-mount SOT23 ICs, saving space and cost. The A1260 is optimized for the speed and position sensing of ring-magnets (motors/encoders) or other moving/rotating assemblies and is targeted at the automotive, communications, consumer 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. Each device includes on a single silicon chip a voltage regulator, a Hall-voltage generator, a small-signal amplifier, chopper stabilization, a Schmitt trigger, and NMOS output that can sink up to 25 mA. The on-board regulator permits operation with supply voltages of 3 V to 24 V and adds EMC robustness such as greater protection against high voltage transient events. The A1260 is qualified to AEC-Q100 standards and includes zener clamps, output short-circuit protection, and reverse-battery protection. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. The device is highly sensitive (B OP = 25 G typical) and its magnetic operating characteristics are specified across the operating voltage and temperature ranges. Package type LH is a modified SOT23W surface mount package that switches with magnetic fields oriented perpendicularly to the non-leaded edge of the package. The UA package is an ultra-mini SIP, equipped for through-hole mounting and lead forming, that switches when a magnetic field is presented to the top edge of the package, parallel with the branded face. Both packages are RoHS-compliant and lead (Pb) free (suffix, -T), with 100% matte-tin plated leadframes.

Allegro MicroSystems, LLC Introduces New 3 V Hall-Effect Linear Sensor IC

Allegro MicroSystems, LLC introduced a new linear Hall-effect sensor IC that provides a 12-bit digital output word that is proportional to the strength of the magnetic field that is present. The quiescent output value of the A1454 is at mid-scale, and it comes in two different factory programmed sensitivity ranges: 2LSB/G and 4LSB/G. The sensitivity temperature coefficient is also factory programmed to support either neodymium or ferrite magnets. Allegro’s A1454 is targeted at the consumer, industrial and instrumentation markets with end applications to include non-life critical medical and consumer devices that require linear position sensing. This new device incorporates an I²C interface for easy integration into a wide variety of applications. The I²C address can either be set by external resistors or programmed via EEPROM, to support up to 127 unique I²C addresses, allowing for multiple ICs on the same bus. It also includes 16 bytes of user programmable EEPROM. The A1454 I²C interface provides a user-controlled sleep input command that puts the device in micro-power mode, which reduces the current consumption of the A1454. This low power feature makes the A1454 perfect for portable, battery-operated applications. The BiCMOS monolithic process allows the integration of both high precision analog and high-density digital circuitry. The A1454 integrates the Hall element, a 12-bit ADC, gain and offset compensation circuitry, EEPROM memory, and the I²C interface on a single monolithic IC. It is packaged in a space saving, 1 mm-thin, TSOP-8 surface mount package.

Allegro MicroSystems, LLC Announces Unique 3D, Omnipolar Magnetic Sensor IC Using Vertical Hall Technology

Allegro MicroSystems, LLC announced the A1266, a unique sensor IC incorporating a combination of vertical and traditional planar Halleffect sensor ICs that can detect a magnetic field of either polarity in any direction. Its omnipolar, omnidirectional sensitivity makes it ideal for detecting magnetic tampering in smart meters, ATMs, gambling/gaming machines, ticket machines, and electronic locks. The A1266 can also serve as a generalpurpose magnetic switch that is relatively insensitive to magnet orientation or polarity in applications such as games, consumer electronics, white goods, etc. This tiny surfacemount SOT23 IC is functionally equivalent to an array of three standard hall sensors mounted in three different orientations, something that is not possible with a single circuit board and all surfacemount components. The device has higher sensitivity than most conventional Halleffectswitches (BOP = 25 G typical). The result is highsensitivity 3D tamper or proximity sensing in less space with lower assem cost. Each device integrates on a single silicon chip a Hallvoltage generator, a smallsignal amplifier, chopper stabilization, a Schmitt trigger, and one or more NMOS outputs. Due to Allegro's proprietary dynamic offset cancellation techniques, the magnetic operating characteristics are specified across the operating voltage and temperature ranges. The A1266 is designed for operation in green and batterypowered systems it can be powered from a 2.5 to 5.0 V supply and the average supply current is typically 7.5 µA at 2.5 V. The operating temperature range is 40 to +85°C. Two configurations are available: one with a separate output for each sensing direction (X, Y, Z) and one with a combined output (X+Y+Z). Package type LH is a modified SOT23W surface mount package that is RoHScompliant and lead (Pb) fre (suffix, T), with a 100% mattetin plated leadframe.

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