Alliance Semiconductor Expands Mixed Signal Family to Include PWM Controllers with Integrated EMI Reduction; PWM Controllers Provide Integrated EMI Reduction Capability for More Compact SMPS Designs With Reduced BOM Cost.SANTA CLARA, Calif. -- Alliance Semiconductor Corporation (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on : ALSC ALSC Association for Library Service to Children ALSC Adirondack Lakes Survey Corporation ALSC Afloat Logistics and Sealift Capability ALSC American Lumber Standards Committee, Inc. ALSC Advanced Logistics Systems Center (AFMC) ), a leading worldwide provider of analog and mixed signal products, high-performance memory products, connectivity and networking solutions for the communications, computing, embedded, industrial and consumer markets, today announced the availability of its newest family of Pulse Width Modulator (PWM (Pulse Width Modulation) A modulation technique that generates variable-width pulses to represent the amplitude of an analog input signal. Like its fixed-width pulse density modulation (PDM) cousin, the output switching transistor is on more of the time for a ) Controllers with Integrated Electro-Magnetic Interference (EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. ) Reduction Technology for Low Noise Switched Mode Power Supply (SMPS SMPS Society for Marketing Professional Services SMPS Switching Mode Power Supply SMPS Switched Mode Power Supply ) Converter and Inverter (1) A logic gate that converts the input to the opposite state for output. If the input is true, the output is false, and vice versa. An inverter performs the Boolean logic NOT operation. (2) A circuit that converts DC current into AC current. Contrast with rectifier. applications. System power supply designers are confronted with extremely challenging design parameters in dealing with power consumption, physical space limitations, and EMI reduction issues to meet the required regulatory standards (like FCC (1) (Federal Communications Commission, Washington, DC, www.fcc.gov) The U.S. government agency that regulates interstate and international communications including wire, cable, radio, TV and satellite. The FCC was created under the U.S. , CSA (1) (Canadian Standards Association, Toronto, Ontario, www.csa.ca) A standards-defining organization founded in 1919. It is involved in many industries, including electronics, communications and information technology. , CSIPR, etc). This family of PWM controllers is designed to replace the extremely popular series of "184X/384X" PWM controllers in a wide range of Switched Mode Power Supply applications, but with the unique additional advantage of a built-in EMI reduction engine. This additional EMI reduction capability has been achieved by implementing Alliance Semiconductor's proprietary Spread Spectrum Modulation technology. Alliance Semiconductor expects to continue the product expansion as the line continues its evolution into even higher performance product offerings that address new SMPS markets demanding effective, inherent EMI reduction capability.
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Class ALSC Part Number PKG DESCRIPTION
Options
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PWM ASM8P18S42 8 DIP 40KHz-400KHz PWM; 15.4V UVLO;
8 SOIC Integrated EMI Reduction
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PWM ASM8P18S43 8 DIP 40KHz-400KHz PWM; 7.8V UVLO;
8 SOIC Integrated EMI Reduction
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PWM ASM8P18S44 8 DIP 40KHz-400KHz PWM; 15.4V UVLO;
8 SOIC Integrated EMI Reduction
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PWM ASM8P18S45 8 DIP 40KHz-400KHz PWM; 7.8V UVLO;
8 SOIC Integrated EMI Reduction
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These PWM controllers support both off-line inverter and DC/DC converter designs. Available in both 8 pin SOIC (Small Outline IC) A small-dimension, plastic, rectangular, surface mount chip package that uses gull-wing pins extending outward. See gull-wing lead, SOJ and chip package. and DIP packages, Alliance Semiconductor offers Commercial and Industrial temperature grades, with standard tin-lead / RoHS and/or Green compliant products. This new product introduction marks Alliance Semiconductor's launch into the power semiconductor market, and provides the industry with a significant player with tried and true value added EMI reduction technology in support of this high growth market. This current offering supports all aspects of the Switched Mode Power Supply market: AC/DC AC/DC adj. Slang Having a bisexual orientation. [From the likening of a bisexual person to an appliance that works on either alternating or direct current. , DC/DC and also certain DC/AC inverter applications. Samples are available today, with initial pricing set at $2.00 in 1K quantity. Full data sheet / product specifications, and a complete cross reference guide are available online at www.alsc.com. About Alliance: Alliance Semiconductor Corporation (NASDAQ: ALSC) is powering every application with high performance solutions for the communications, computing and consumer electronics markets. Utilizing advanced process technologies and design expertise, Alliance provides leading OEMs with a broad portfolio of complementary technologies including analog and mixed-signal products, chip-to-chip connectivity products, networking controllers and high-performance memories. Alliance addresses the complete needs of system developers by leveraging its proprietary advances in Electromagnetic Interference (EMI) reduction, power management and timing technology, HyperTransport(TM) I/O (Input/Output) The transfer of data between the CPU and a peripheral device. Every transfer is an output from one device and an input to another. See PC input/output. I/O - Input/Output connectivity and specialized memory solutions for next-generation applications. Founded in 1985, Alliance is headquartered in Santa Clara, California Santa Clara, California (IPA: /ˌsæntəˈklærə/) , founded in 1777 and incorporated in 1852, is a city in Santa Clara County, in the U.S. state of California. with design centers in Bangalore and Hyderabad, India. The company is publicly traded and included in the S&P 600 Index. Additional information is available on the Alliance Web site at: http://www.alsc.com. |
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