Semiconductors and Semiconductor Equipment
Company Overview of Allegro Microsystems, Inc.
Allegro Microsystems, Inc. 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 of...
115 Northeast Cutoff
Worcester, MA 01615
Founded in 1990
Key Executives for Allegro Microsystems, Inc.
Vice President of Operations and Vice President of Quality
Vice President of Technology Development
Compensation as of Fiscal Year 2014.
Allegro Microsystems, Inc. Key Developments
Allegro MicroSystems, LLC Introduces New Multi-Output Boost Converter Led Driver ICs with Fault Tolerant Protection
Oct 21 14
Allegro MicroSystems, LLC introduced two new devices to complement their existing portfolio of LED Driver ICs for LCD backlighting applications. Allegro’s A8518 and A8519 devices integrate a current-mode boost converter with internal power switch with either two current sinks (dual string) in their A8518 or four current sinks (quad string) in their A8519. Both devices are targeted at the automotive and industrial markets with end applications to include automotive infotainment and instrument cluster LCD backlighting, heads-up displays, interior lighting, accent lighting and robust commercial and industrial backlighting and lighting applications. In Allegro’s A8518, the boost converter can drive up to 22 white LEDs, 11 LED per string, at 200 mA. The LED sinks can be paralleled together to achieve higher LED currents up to 400 mA. In the A8519, the boost converter can drive up to 44 white LEDs, 11 LED per string, at 100 mA each. The LED sinks can be paralleled together to achieve higher LED currents up to 400 mA. Both devices contain features such as high dimming ratio, string current matching, frequency dithering and fault detection. Both devices also contain input current sensing and gate drive to control an optional input disconnect MOSFET. The A8518 and the A8519 are AEC-Q100 qualified and operate from a single power supply with a 4.5 V to 40 V range. This allows each part to withstand load dump and start-stop conditions encountered in automotive systems. Allegro’s A8518KLPTR-T is available in a 16-contact eTSSOP package (suffix LP) and the A8519KETTR-T is available in a 5 x 5 mm, 28-contact QFN (suffix ET) and a 20-contact eTSSOP package (suffix LP). All packages have an exposed pad for enhanced thermal performance.
Allegro MicroSystems, LLC Announces Addition of Dual IC Device to 5th Generation LNB Regulator Family
Sep 10 14
Allegro MicroSystems, LLC announced a new addition to their existing family of Low Noise Block Regulators (LNBRs). Allegro’s A8302 dual LNB Regulator IC has a comprehensive set of features and functions that can be used for all dual tuner satellite receiver applications. The A8302 consists of a monolithic switching and linear voltage regulator, specifically designed to provide the power and interface signals to an LNB down converter via coaxial cable in satellite TV receivers systems. Also available in this 5th generation LNB regulator family are several single channel devices – the A8300 and A8300-1 (targeted at 2-way DiSEqCTM and LCD TV applications) and the A8304 (targeted at 1-way DiSEqC TM applications). This new dual IC device requires few external components, with the boost switch and compensation circuitry integrated inside of the device. The boost converter’s switching frequency (563 or 939 kHz) and user-controlled current limit (250 to 950 mA) minimize the size of the external components. A sleep pin is available to maximize power savings and to quickly shut down the device if needed, without using I²C™ control. The A8302 can either provide an internal 22-kHz tone or accepts an external 22-kHz tone for DiSEqC™ communications. It also has integrated 22 kHz tone detection capability, and the internal bypass FET gate drive simplifies full 2-way DiSEqC™ communications if needed. The A8302 offers Early Power Failure (EPF) warning, which helps to initiate shutdown routines. The A8302 maximum output reverse current can be set using a control bit. A comprehensive set of fault registers are provided, which comply with all the common standards, including: overcurrent, thermal shutdown, undervoltage, and output out of range. The A8302SETTR-T is provided in a 5 × 5 mm QFN package (suffix ET) with exposed pad for thermal dissipation. It is lead (Pb) free, with 100% matte tin leadframe plating.
Allegro Microsystems, LLC Releases Next Generation Series of Silicon Carbide Schottky Barrier Diodes
Jul 22 14
Allegro MicroSystems, LLC announced the release of the next generation series of silicon carbide schottky barrier diodes. The FMCA series achieves low leakage current and high speed switching at high temperatures and is offered by Allegro and manufactured and developed by Sanken Electric Co. Ltd. in Japan. This new series is targeted at the industrial and computer markets with end applications to include servers and those that require high frequency rectification circuits. The FMCA series uses the next generation of power semiconductor SiC (silicon carbide) and a 650 V breakdown voltage in a schottky barrier configuration, making it suitable for continuous current mode PFC circuits. These devices are capable of reducing the power loss that results from the recovery current. The diode’s high-speed switching capability and energy-saving functionality allows for the potential downsizing of equipment. Several key features of this new series are improved efficiency of the power supply with low recovery loss characteristics of the SiC-SBD, low-resistance with a high-speed switching SiC-MOSFET that realizes a compact and highly efficient power supply and an increased current within high temperature environments to maintain stable switching due to the elimination of thermal runway. The FMCA series is available in a TO-220F package.
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