Beyond simple MOSFET selection Design How-To 10/31/2006 Post a comment Today's higher speeds, currents and lower voltages plus secondary effects increase losses in power conversion. Because of this, selecting a MOSFET for the synchronous buck converter is not a trivial exercise and requires a solid methodology to select the best combination coupled with good understanding of loss mechanisms. Here's what you need to know.
Energy harvesting will power growth -- but which ones? News & Analysis 10/31/2006 Post a comment An upcoming report by Darnell on ultra-low-power wireless components explores energy harvesting and micro-power generators, and is available for sponsorship. The report quantifies the market for these components by application and identifies the markets that are commercially viable.
LDO touts lowest quiescent current for automotives Product News 10/27/2006 Post a comment ON Semiconductor says its NCV8664 is the industry's first linear regulator to incorporate reverse-battery, short-circuit and overload protection with the lowest quiescent (Iq) current performance specified over the automotive temperature range.
Relative-humidity sensor system boosts climate control Product News 10/25/2006 Post a comment Boosting passenger safety and comfort, Sensata Technologies' capacitive-based humidity sensors with integrated temperature function, for determining relative humidity in climate control and windshield anti-fogging applications, responds five times faster with twice the initial accuracy of traditional resistive-sensor technologies.
TV-on-chip devices debut Product News 10/25/2006 Post a comment Fabless semiconductor company Telegent Systems is rolling out devices that integrate all major mobile TV receiver functions, from antenna input to digital video output. Low-power devices support NTSC and PAL video formats, making it suitable for both US and European mobile phone designs.
LED driver simplifies Movie/Flash applications Product News 10/24/2006 Post a comment Catalyst Semiconductor's CAT4134, for up to six white/color LEDs, is a 500-mA inductive boost driver optimized for Movie/Flash applications, and for industrial video lighting, still camera, flashlight, and LCD backlighting.
Pentagon urges 'relevant' R&D News & Analysis 10/20/2006 Post a comment U.S. military planners, faced with mounting casualties in Iraq and Afghanistan along with a decline in federal R&D spending, are pressing contractors to shift their focus from gee-whiz technologies to "relevant" ones that can save lives and improve capabilities today.
Ballast IC makes for brighter fluorescent lamps Product News 10/20/2006 Post a comment STMicroelectronics says its L6585 "combo IC," which integrates a power factor correction stage with a half-bridge controller and all the relevant drivers and logic for an electronic ballast IC, ultimately makes for fluorescent lamps that shine brighter.
1-chip solution advances automotive battery monitoring Product News 10/20/2006 Post a comment Product Review - Analog Devices' ADuC703x family of Smart Battery Sensors, claiming the first single-chip solution for precision battery management in automotive applications, integrates high-precision data acquisition of current, voltage, and temperature, a programmable flash memory-based MCU, and a local interconnect network (LIN)-based controller with high-voltage transceiver in a small 48-pin package.
TI veteran sets up analog, mixed-signal firm in India News & Analysis 10/19/2006 Post a comment A new venture offering analog and mixed-signal design and layout services has been launched by Vivek Pawar, an industry veteran who was most recently at Texas Instruments India for 15 years. Christened Sankalp Semiconductor, the firm plans to provide methodology and automation-oriented high-end services and solutions in these areas.
JPEG2000 codec for robust, scalable pro and consumer video Design How-To 10/13/2006 Post a comment The JPEG2000 wavelet-based algorithm generates a compressed codestream that retains the ability to easily extract different representations of the image, including different frame dimensions, without transcoding or recompressing. Yes, the name sounds dated (note MPEG-4 is even older, dating to 1998) but with the ability to simultaneously deliver HD and lower resolution video from the same signal, the six-year old JPEG2000 codec has a very bright future for broadcast, surveillance and consumer vi
High-voltage buck control ICs drive LED signage Product News 10/13/2006 Post a comment International Rectifier's 200- and 400-volt half-bridge buck regulator control ICs for AC/DC offline applications are designed to drive multiple LEDs for indoor and outdoor signage as well as architectural, entertainment, design, and decorative lighting.
LDO is automotive-qualified Product News 10/12/2006 Post a comment Texas Instruments' new family of low-dropout (LDO) regulators, with an input voltage range of 45 volts, will survive the harsh requirements of the high-transient automotive environment for car stereo, instrument clusters, and telematics applications.
ULDO is a tight fit for wireless designs Product News 10/12/2006 Post a comment Micrel's MIC5301 ULDO regulator touts a dropout of just 40 mV at 150 mA, more than 75 db PSRR, and extremely low output noise all in a 1.6-by-1.6 mm MLF package that ideally suits the device to portable and wireless applications.