TelCom Semiconductor Inc. (Mountain View, CA) announced the TC33025, a dual-output PWM controller optimized for high-frequency operation. This 1MHz PWM controller is designed for use in a variety of switching regulator architectures. TelCom claims that it offers a higher degree of integrated functionality within a PWM controller, eliminating the need for multiple discrete components while […]
Powerex Inc. (Youngwood, PA) announced a new POW-R-BLOK, designated as CD6, designed for use in applications requiring rectification, half-control or full control. Isolated for easy mounting with other components on a common heatsink, the CD6 has been tested and recognized by Underwriters Laboratories. Powerex's latest product is rated at 800V to 2,000V, and 150A and […]
ON Semiconductor LLC (Phoenix, AZ) announced the availability of a linear output temperature sensor with an output voltage directly proportional to measured temperature in degrees Celsius. The NCT47 is a high-precision, temperature-to-voltage converter that was designed to combine compact size, low cost and low-power operation. ON Semiconductor claims that the NCT47 can accurately measure the […]
Siliconix Inc. (Santa Clara, CA) announced the release of three new integrated circuits aimed at power conversion applications in notebook and desktop computers. The new Si91860DY is specifically designed to regulate power for network interface cards (NIC), PCMCIA cards and PCI interface cards. The new device combines an ultra-low supply current that reduces power consumption […]
Powerex Inc.'s (Youngwood, PA) new family of 1,700V IGBTs incorporates a newly designed planar chip that is fine-line processed. The designated K Series chip uses a buffer layer with local lifetime control to optimize on-state and switching losses. This allows the devices to be used at operating frequencies of 15kHz with 30 percent to 50 […]
International Rectifier (El Segundo, CA) has announced a new series of more than 40 dc/dc converter-specific HEXFET power MOSFETs that enable 85-percent-plus efficiency in sub-2V power systems. These power systems allow performance to be maximized in distributed-power supplies used in telecom systems, network servers and desktop computers, with advanced microprocessors from AMD, Intel and others. […]
ON Semiconductor LLC (Phoenix, AZ) launched its next-generation, high-voltage MOSFETs, offering a 30-percent reduction in RDS(on) and a lower gate charge over its existing MOSFETs. The TMOS 7 E-FET Series are N-channel, enhancement-mode silicon gate that can be used in a range of power-management applications, including telecommunication products and switch-mode power-supply systems. Specification points previously […]
PowerSmart Inc.'s (Shelton, CT) PS334 battery-management IC brings a high level of accuracy to capacity monitoring as well as charge control and safety. The PS334 provides a high level of integration and features six programmable outputs that eliminate the need for additional components normally required for charge control or safety. OEMs can now achieve the […]
International Rectifier (El Segundo, CA) have announced the production of their first TempSENSE HEXFET power MOSFET, which can provide cost-effective temperature sensing for automotive system protection by using an on-chip temperature sensing diode. The IRLBD59N04E is a 40V, 20 mohms, N-channel MOSFET. Temperature sensing is provided by two anti-parallel, electrically isolated, poly-silicon diodes. The diode's […]
International Rectifier (El Segundo, CA) now offers synchronous-buck designers the industry's first component solution to demonstrate high efficiency at 1V output voltage. As Internet appliances continue to demand dramatic increases in bandwidth capability, on-board performance and power-conservation requirements become even more demanding, thus driving operating voltages down to 1V. This major challenge for the dc/dc […]
To help designers reduce time to market, Zetex Inc. (Commack, NY) has introduced a demonstration bread board for its ZXRD1000 Series dc/dc controller ICs. A 95 percent greater efficiency can be achieved with the ZXRD1000 Series supported by the Zetex patented SimpleSynch drive circuit. The resultant reduced complexity allows for cost savings on the ZXRD […]
International Rectifier (El Segundo, CA) announced an offer on its new MUR Series of expitaxial diodes with reverse-recovery times of 25ns. The...
Microsemi Corp. (Santa Ana, CA) has introduced a new silicon-carbide Schottky diode (UPSC148) to their line of silicon mixed-signal and discrete products. The diode is available in the company's 1mm Powermite package, and is a 1A, 480V silicon-carbide Schottky targeted at high-speed switching and power-supply applications in telecommunications and implantable medical equipment. Silicon carbide is […]
Vishay Intertechnology Inc. (Malvern, PA) has released its new non-isolated buck/boost converter IC, the Vishay Siliconix Si9121DY. The Si9121DY gives designers a simple and compact way to convert a -48V input to +3.3V or +5V in ISDN digital phones. In addition to digital phones, the Si9121DY will be used to regulate ISDN power supplies for […]
Texas Instruments Inc. (Dallas, TX) recently announced that designers are now able to increase battery life and performance on single- or dual-cell batteries by using their new TPS6100x family of low-power dc/dc converters. These devices are designed for applications in which battery life is vital, such as personal digital assistants and portable medical instruments. The […]