Freescale Hot Swap Controllers Use 60 Percent Less Board Space; MC34652 and MC34653 Designed for Safe Insertion and Removal of Circuit Cards without Powering Down Systems.TEL AVIV Tel Aviv (tĕl əvēv`), city (1994 pop. 355,200), W central Israel, on the Mediterranean Sea. Oficially named Tel Aviv–Jaffa, it is Israel's commercial, financial, communications, and cultural center and the core of its largest , Israel -- Two advanced power management integrated circuits Integrated circuits Miniature electronic circuits produced within and upon a single semiconductor crystal, usually silicon. Integrated circuits range in complexity from simple logic circuits and amplifiers, about 1/20 in. (1. (ICs) from Freescale Semiconductor Freescale Semiconductor, Inc. is an American semiconductor manufacturer. It was created by the divestiture of the Semiconductor Products Sector of Motorola in 2004. Freescale focuses their integrated circuit products on the automotive, embedded and communications markets. (NYSE NYSE See: New York Stock Exchange :FSL FSL - Formal Semantics Language. A language for compiler writing. ["A Formal Semantics for Computer Languages and its Application in a Compiler-Compiler", J.A. Feldman, CACM 9(1) (Jan 1966)]. [Sammet 1969, p. 641]. ) (NYSE:FSL.B) are available now to help designers of telecommunication and networking equipment reduce board space and cut system costs. Freescale's MC34652 and MC34653 single-chip hot swap controllers provide the load current control and protection needed to help prevent severe and permanent damage that could result from power surges. This is important for users of telecom and networking systems, servers, electronic circuit breakers Circuit breakers Measures instituted by exchanges to stop trading temporarily when the market has fallen by a certain percentage in a specified period. They are intended to prevent a market free fall by permitting buy and sell orders to rebalance. and central office switching equipment who need the ability to insert or remove circuit boards in live -48 volt back planes without powering down the system. These devices also are designed to provide system protection by intelligently limiting any inrush current that might damage equipment. The MC34652 and MC34653 hot swap controllers also minimize the need for external components by integrating the power metal oxide semiconductor field effect transistor (electronics) Metal Oxide Semiconductor Field Effect Transistor - (MOSFET) A Field Effect Transistor in which the conducting channel is insulated from the gate terminal by a layer of oxide. Therefore it does not conduct even if a reverse voltage is applied to the gate. (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 ) required by most applications. This integration, with compact packaging, may reduce the board space required by most other hot swap solutions by more than 60 percent. These features can assist system designers in creating small, cost-effective boards or provide new or enhanced system features in existing board space. Features for protection, cost and space Both the MC34652 and MC34653 integrate a power MOSFET to control the load. Other features include:
-- Maximum output current of 2.0 Amps on the MC34652, 1.0 Amp on
the MC34653
-- Input voltage operation range from -15 volts to -80 volts on
the MC34652, -39 volts to -74 volts on the MC34653
-- Over-current limiting with auto retry (default or
programmable)
-- Charging current limit independent of load capacitor (default
or programmable)
-- Start-up and retry delay timer (programmable option on the
MC34652)
-- Over-voltage and under-voltage detection (programmable option
on the MC34652)
-- Active high- and low-power good output signals
-- Disable input control
-- Thermal shutdown
-- Restriction of Hazardous Substances (RoHS) compliant
Price and availability Production quantities of both devices are available now. The MC34652 is in a 16-lead small outline integrated circuit (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. ) narrow body package for a suggested resale price of $2.15 (USD USD In currencies, this is the abbreviation for the U.S. Dollar. Notes: The currency market, also known as the Foreign Exchange market, is the largest financial market in the world, with a daily average volume of over US $1 trillion. ) in 1,000-piece quantities. Housed in an eight-lead SOIC narrow body package, the MC34653 has a suggested resale price of $1.82 (USD) in 1,000-piece quantities. To learn more about Freescale's hot swap controllers, visit http://www.freescale.com/files/pr/hotswap.html About Freescale Semiconductor Freescale Semiconductor, Inc. (NYSE:FSL) (NYSE:FSL.B) is a global leader in the design and manufacture of embedded semiconductors for the automotive, consumer, industrial, networking and wireless markets. Freescale became a publicly traded company publicly traded company A company whose shares of common stock are held by the public and are available for purchase by investors. The shares of publicly traded firms are bought and sold on the organized exchanges or in the over-the-counter market. in July 2004 after more than 50 years as part of Motorola, Inc. The company is based in Austin, Texas, and has design, research and development, manufacturing or sales operations in more than 30 countries. Freescale, a member of the S&P 500(R), is one of the world's largest semiconductor companies with 2004 sales of $5.7 billion (USD). www.freescale.com Freescale Technology Forum Learn more about this forum, featuring visionary keynote speeches, in-depth technical presentations and technology demonstrations from Freescale and leading hardware, software and tools providers. www.freescale.com/ftf Freescale Reader Inquiry Response: Freescale Semiconductor P.O. Box 17927 Denver, CO 80217 USA Freescale(TM) and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. (C) Freescale Semiconductor, Inc. 2005 |
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