Infineon Single-Package Integrated Switch Significantly Decreases Power Supply Size and Cost.Business Editors/High-Tech Writers PowerSystems World Power Electronics Technology Exhibition & Conference MUNICH, Germany, and CHICAGO--(BUSINESS WIRE)--Oct. 28, 2002 At the PowerSystems World Power Electronics Technology Exhibition & Conference in Chicago today, Infineon Technologies For the raceway, see . Infineon Technologies AG (ISIN: DE0006231004, FWB: IFX, NYSE: IFX) was founded in April 1999 when the semiconductor operations of parent company, Siemens AG, were spun off to form a separate legal entity. AG (FSE/NYSE:IFX IFX - ["Type Reconstruction with First-Class Polymorphic Values", J. O'Toole et al, SIGPLAN Notices 24(7):207-217 (Jul 1989)]. ) introduced a single-package integrated switch that allows designers of switching power supplies to reduce system costs by as much as 50 percent and dramatically reduce the space required. The new TDA TDA Texas Department of Agriculture TDA Trade and Development Agency TDA Transportation Development Act TDA Tax Deferred Annuity (commonly known as TSA) TDA Tienda (Spanish: store) 21201 component enables manufacturers to less-expensively build personal computers, notebook computers and other portable and space-constrained electronic devices. Designers of the dc/dc power supplies used to power most electronic products are faced with increasingly complex technical problems, such as supplying higher power Higher power is a term used in a 12-step program, such as Alcoholics Anonymous, to describe "a power greater than yourself." Although many participants equate their higher power with God, a belief in God or in formal religion is not mandatory; the higher power is intended as a with lower voltage, while at the same time the market demands shorter and shorter design cycles. To solve this dilemma, reduce complexity and save time, designers increasingly rely on integrated solutions for the driver and the power stage of the converter. However, such "integrated switch" products typically use specialized and costly packaging to achieve the required electrical performance. Infineon's TDA21201 Integrated Switch devices convert a 12 V input into levels of less than 3.5 V to power the variety of components within personal computers, peripherals and other electronic systems. They are capable of meeting demanding performance requirements using industry-standard, high-volume, low-cost packaging. Priced as much as 50 percent less than competitive integrated power-stage solutions, the TDA21201 devices significantly save board space when compared with the separate driver chip and transistors required with other solutions. This results in very high power density, which is a measure of how much power is provided per area unit of measure. Additional space savings and total bill of materials The list of components that make up a system. For example, a bill of materials for a house would include the cement block, lumber, shingles, doors, windows, plumbing, electric, heating and so on. (BOM) reductions are realized because the TDA21201 does not require the bootstrap See boot. (operating system, compiler) bootstrap - To load and initialise the operating system on a computer. Normally abbreviated to "boot". From the curious expression "to pull oneself up by one's bootstraps", one of the legendary feats of Baron von Munchhausen. circuit necessary with other solutions. This also helps further reduce design effort and provides designers with the greatest degree of flexibility. TDA21201 Advantages The Infineon TDA21201 Integrated Switch combines a gate driver and two OptiMOS(R) power MOSFET A Power MOSFET is a specific type of Metal Oxide Semiconductor Field-Effect Transistor (MOSFET) designed to handle large powers. Compared to the other power semiconductor devices (IGBT, Thyristor... (metal-oxide semiconductor field-effect transistor field-effect transistor: see transistor. ) switches in a single industry-standard TO220 package that requires only input and output filters and a 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 (pulse-width modulation) controller to create a complete dc/dc voltage converter for applications in which space is a significant constraint and power dissipation is a concern. The low-cost package types available from Infineon are the surface-mount TO220-7-128 (D2-PAK) and the through-hole TO220-7-3 (straight-lead) and TO220-7-230 (staggered-lead) packages. The D2-PAK package dissipates heat generated by the device directly into the board, while the other two packages allow the heat to be dissipated into the air, an option not available with any competitive device. These heat dissipation capabilities allow better ambient thermal coupling and higher junction temperatures than the custom packages used in competitive devices. Combining the power MOSFETs and the driver circuit in a single package also virtually eliminates stray inductances between the semiconductor components, resulting in lower switching losses and a more compact design. The packaging density of the TDA21201 driver/MOSFET combination enables higher board densities for multi-phase converters, making it feasible to package a three- or four-phase converter in the space usually required for a two-phase design. TDA21201 Technical Features The TDA21201 is highly efficient in its conversion, achieving efficiencies of over 80 percent at a 200 kHz switching frequency for currents of 20 A. It accomplishes this in large part because of the reduced static and dynamic losses made possible by the proprietary OptiMOS technology used in the MOSFETs. The MOSFETs can handle currents of up to 30 A and have breakdown voltages of 30 V, which allows them to avoid avalanche during turn-off of the HS (high-side) MOSFET (Metal Oxide Semiconductor Field Effect Transistor) The most popular and widely used type of field effect transistor (see FET). MOSFETs are either NMOS (n-channel) or PMOS (p-channel) transistors, which are fabricated as individually packaged . The drive capability of the gate driver allows the TDA21201 to be operated in the frequency range of from 100 kHz to 500 kHz. Over-temperature protection shuts down both MOSFETs when the temperature is above 150(degree)C. Because the gate driver is thermally well-coupled to the MOSFETs, this function protects both. Price and Availability The TDA21201 Integrated Switch is available now in industry-standard TO220-7-128 D2-PAK, TO220-7-3 straight-lead and TO220-7-230 staggered-lead packages. It is priced at $1.50 in 10,000-piece quantities. Additional information on the TDA21201 family is available at www.infineon.com/dc2dc. About Infineon Infineon Technologies AG, Munich, Germany, offers semiconductor and system solutions for applications in the wired and wireless communications markets, for security systems and smartcards, for the automotive and industrial sectors, as well as memory products. With a global presence, Infineon operates in the US from San Jose, CA, in the Asia-Pacific region from Singapore and in Japan from Tokyo. In the fiscal year 2001 (ending September), the company achieved sales of Euro 5.67 billion with about 33,800 employees worldwide. Infineon is listed on the DAX index of the Frankfurt Stock Exchange Frankfurt Stock Exchange The largest of Germany's eight securities exchanges, operated by Deutsche Borse AS. and on the New York New York, state, United States New York, Middle Atlantic state of the United States. It is bordered by Vermont, Massachusetts, Connecticut, and the Atlantic Ocean (E), New Jersey and Pennsylvania (S), Lakes Erie and Ontario and the Canadian province of Sock Exchange (ticker symbol Ticker Symbol An arrangement of characters (usually letters) representing a particular security listed on an exchange or otherwise traded publicly. When a company issues securities to the public marketplace, it selects an available ticker symbol for its securities which investors :IFX). Further information is available at www.infineon.com. Infineon, OptiMOS and the stylized styl·ize tr.v. styl·ized, styl·iz·ing, styl·iz·es 1. To restrict or make conform to a particular style. 2. To represent conventionally; conventionalize. Infineon Technologies design are registered trademarks and service marks of Infineon Technologies AG. Other product and brand names may be trademarks or registered trademarks of their respective owners. This news release and a press photo are available online at www.infineon.com/news For the Trade Press: INFAI INFAI Institut für biomedizinische Analytik und. NMR-Imaging GmbH 200210.006e |
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