New Products

Sat, 22 Nov 2008 19:41:11 +0100

New Series of Intelligent Power Modules for White Goods

Sanken are expanding their SLA6800M and SMA6800M Series of Intelligent Power Modules (IPM) range. Highlighting a broad variety of high voltage, three-phase motor driver ICs targeted at the residential white goods (home appliance) and commercial three-phase motor market segments, such as air conditioners, refrigerators, and washing machines. Sanken IPM devices are particularly well-suited to applications in variable speed control systems and power inverter systems.

With the global need for energy saving, home electric appliances in Japan are now required to indicate their energy saving levels on product labeling but are only now beginning to emerge in other countries. This movement has lead to technological changes; for example, AC motors are increasingly being replaced by higher efficiency brushless DC motors (BLDC).

To drive these motors, a 3-phase full bridge inverter and driver IC are required. For low-capacity fan motors in room air conditioners, a commonly-used product has been a combination of drive IC and protection functions with the 3-phase full bridge circuit, integrated on a single chip. However, these single-chip solutions have the disadvantages of large switching losses and limited allowable power dissipation.
Conventional single-chip IGBT-based driver ICs for low capacity motors, have drawbacks such as large switching losses and limited allowable power dissipation. An alternative, described in this note, is the inverter power module (IPM) SMA6800M Series, which is designed for use in low-capacity motors such as air conditioner fans.

The SMA6800M Series uses power MOSFET chips to achieve low loss levels. Highly integrated multichip technology is used to combine the driving circuitry with a high voltage monolithic IC, allowing packaging in a small SIP. This package is ideally suited for equipment requiring compact size and high efficiency.

Demand for these applications is expected to increase rapidly in the near future, due to commercial economic pressures and governmental regulations mandating the use of energy-conserving technologies.

IPM type ICs are gradually becoming prevalent for controlling motors in residential and commercial laundry washing machines, where they replace several discrete components, thus saving application space and design effort. In many instances, IPM devices yield the lowest overall cost solution, especially in the current regulatory environment, which is forcing manufacturers to redesign their power management systems. Traditional discrete-device topologies are proving difficult to adapt to these applications, and manufacturers are turning to more rapid design solutions using the highly integrated topologies offered by IPM types of devices.

The SLA6800M and SMA6800M Series, operates from 85 to 265 VAC input voltage, and 1.5A to 3.0A output current. These ICs can withstand voltages of up to 500 V (MOSFET breakdown voltage) and 600 V (IGBT breakdown voltage).

www.sankenpower.co.uk

Solar Panel Connector Delivers Enhanced Performance

Amphenol Industrial Operations has introduced Helios H4, a low energy loss 4mm connector for photovoltaic systems with a locking design fully compliant with NEC 2008. Improved gasket materials enhance reliability for long-term use in any environment and the new connector has a TUV-compliant touch-proof casing for increased system and user safety.

Helios H4 features a self-cleaning, high efficiency grid contact and has long term UV and ozone resistance to extend its operational life and performance. The combination of Amphenol’s advanced contact technology and manufacturing efficiency delivers this enhanced performance at an exceptionally competitive price.

This versatile, low-cost connector, is ideal for connecting multiple solar panels in strings and then to combiner boxes or inverters. It is fully compatible with existing industry standard connectors making it suitable for use in both new and retrofit applications.

RoHS-compliant, Helios H4 is easy to connect on site and has a simple unlocking tool for quick disconnection. It is engineered to meet UL, IEC/CEI, NEC, TUV and DIN V specifications.

www.amphenol-industrial.com

New Generation of High-Brightness Oval LEDs

Cree has announced a new-generation high-brightness 4-mm and 5-mm oval LEDS in blue, green and red. These new oval LEDs feature optically-matched radiation patterns in blue, green and red, resulting in superior image quality for digital billboard and full-color sign applications.

In Cree's unique matched-radiation pattern, the red pattern is inside the blue and green--resulting in a blended cool-white light, compared to the pink that results when unmatched LEDs are used.

Available in a wide range of intensities and colors, Cree's oval LEDs feature a wide viewing angle and enhanced contrast, making them ideally suited to the signage market. Use of LEDs in signs and displays helps lower power requirements and maintenance expense compared to other technologies.

www.cree.com

Power MOSFETs Optimized for Low Voltage Operation

Diodes Incorporated has announced a significant expansion of its power MOSFET product range with the introduction of new devices suitable for load and switching functions in a variety of consumer, communication, computing and industrial applications. Covering both its Diodes and Zetex product lines, the additions include twenty seven 30V logic level and nine 20V low threshold N, P and complementary MOSFETs in a choice of industry standard packages.

Offered in SOT323, SOT23, SOT26 and SO8 formats, all power MOSFETs are pin and footprint compatible with existing devices and provide a competitive price-performance ratio, enabling either a reduction in BOM or improved performance at no extra cost. For DC/DC conversion and general power management duties, these latest MOSFETs will benefit a diverse range of new product designs including LCD TVs and notebook computers.

Diodes’ 30V logic level power MOSFETs cover an on-resistance range from 190m? at 10V VGS for a SOT23 P-channel, through to 9m? at 10V VGS for an SO8 N-channel MOSFET. On resistance of these devices is also specified at 4.5V VGS for logic level operation. The turn on gate threshold voltage for the P- and N-channel device is -1V and +1V respectively.

The 20V low threshold MOSFET introductions have on resistances specified at 2.5V VGS and 1.8V VGS, being typically 240m? in the SOT23 package through to 9m? in an SO8. The turn on gate threshold voltage for the P- and N-channel device is -0.6V and +0.6V respectively.

www.diodes.com

New Broad Spectrum DC/DC Converter

By delivering 35W output power and with a wide input range of 18 - 72V, Ericsson Power Modules’ PKU-E DC/DC converter provides flexibility to customers where their applications require more that the company’s 15W PKR, and less than the 50W delivered by the original PKU.

The industry standard sixteenth-brick, PKU-E is designed for distributed power architectures in telecom-systems requiring compatibility with both battery voltages used in mobile radio applications (24V) and fixed applications using 48V. It is also a perfect solution for customers addressing industrial and transportation segments were voltages could vary by as much as 20 to 60V, and for other applications were a single product could accommodate a wide range of input voltages from 18 to 72 volts.

With its low profile of just 7.5mm, the PKU-E is ideal for applications with tight board space and low profile requirements.

An SMD option uses the Floating Inserted Pin (FIP) concept introduced last year by Ericsson. This PKU-E surface mount version is compatible with the most demanding assembly processes. The surface mount product is intended for forced convection or vapor phase reflow soldering in SnPb or Pb-free processes.
Despite its low cost, PKU-E offers a wide range of features including pre-bias, monotonic rise, wide input range, excellent load and line regulation, and excellent dynamic performance.

Reducing running costs and environmentally friendly, the PKU-E offers high efficiency, typically 89.5 percent at 3.3V 50 percent load, with 27Vin and 1500Vdc input to output isolation. The PKU-E is DOSA (Distributed-power Open Standards Alliance) compatible, ensuring footprint compatibility across a wide range of manufacturers and compatibility with all aspects of DOSA, thus aiding sourcing and inventory.
PKU-E’s electrical design is based on a fly-forward topology that enables a wide input voltage range while maintaining high efficiency. Both transformer and output inductor are integrated in the PCB, which combined with the selection of low thermal impedance MOSFETs provides excellent thermal performance.

www.ericsson.com/powermodules

First Rosin-Free, No-Clean, Cored Wire Solder

Indium Corporation has introduced CW-501, the First Colophony- (Rosin) Free, No-Clean, Cored Wire Solder for use with Pb-Free alloys.

The company has adapted its industry-leading solder paste technology for use in a cored wire solder to develop this product which contains no rosin, a known allergen. CW-501 comes in a variety of alloys and wire diameters. It provides excellent wetting and solder spread with minimal smoking and low odor. It solders comparably to no-clean or RMA rosin-containing cored wires, and is compatible with Indium Corporation’s latest line of no-clean products, including wave fluxes and the award–winning Indium8.9.

All Indium Corporation’s bar, wire, and wave flux products are manufactured at its, ISO-9000 certified facility. Established in late 2006, the facility has the latest solder manufacturing equipment and employs solder and flux manufacturing personnel with more than 150 combined years of solder making experience.

Indium Corporation is a premiere materials supplier to the global electronics assembly, semiconductor fabrication and packaging, solar photovoltaic and thermal management markets.

www.indium.com

DC-DC Converters with Regulated Power for High Temperature

International Rectifier has launched the HTA family of high temperature C-DC converters for high power subsurface and high temperature applications up to 185º C including down-hole drilling, seismic and natural resource exploration, and jet engine control electronics.

The new DC-DC converters are well suited as building blocks and intermediate bus converters for power systems. Available as commercial off-the-shelf (COTS), the new converters significantly reduce design cycle time, size and design costs associated with high temperature applications.

The HTA series is capable of providing up to 20 W of output power over extreme case temperatures of minus 35º C to 185º C. The family of devices has an input voltage range of 150 V to 250 V and is offered in single and dual output configurations. Input and output are galvanically isolated to protect the output loads from catastrophic system failures at the input side and provide the flexibility of stacking several converters to achieve a higher output voltage.

www.irf.com

High Density 40V Wide-Input-Range Boost Regulators

Micrel has launched a new product line, a family of wide-input range integrated switch boost regulators. The MIC2601 operates at 1.2MHz and the MIC2602 at 2MHz. Both can supply up to 1.2A switch current. The MIC2601/2 are aimed at multimedia STB/antenna/tuners, broadband communications, TFT-LCD bias supplies, bias supplies, positive output regulators, SEPIC converters, DSL applications and local boost regulators.

“Micrel’s latest integrated switch boost regulators satisfy designers need for superior power solutions. These high-power-density boost regulators, operating at 1.2 and 2MHz, are ideal for a wide variety of broadband, power supply and multimedia applications,” noted John T. Lee, marketing director Non Portable Power, Micrel. “Our customized processes and novel design features enable us to offer best-in-class boost regulators for customers.”

These devices, offered by Micrel for the first time, operate over a wide input voltage range (4.5V – 20V) and boost output voltages to as high as 40V. These easy-to-use regulators feature a built-in 1.2A switch, resulting in low external component count as well as low BOM costs. Offering up to 2MHz PWM frequency, these devices are highly efficient and require only the smallest external components. Enhanced stability comes from the use of a small ceramic capacitor. Both MIC2601/2 devices are available in a small footprint, highly reliable, Pb-free 2mm x 2mm MLF®-8 package.

www.micrel.com

New Thermal Management Sensor for High Accuracy and Extended Temperature

National Semiconductor has introduced a digital temperature sensor to monitor automotive system temperature up to 175 ºC and delivers +/- 1 ºC accuracy between 130 ºC and 160 ºC.

The LM95172Q’s pinpoint accuracy at high temperatures permits lower system guard bands. System engineers now can develop a reliable electronic control unit (ECU) that consistently runs at higher temperatures, allowing for optimal oil viscosity, smaller system form factor and lower weight. These elements enable increased fuel efficiency.

This is the industry’s first integrated 175 ºC digital-output temperature sensor with a serial peripheral interface (SPI) and MICROWIRE® bus interface. The LM95172Q is a member of National’s PowerWise® family of products that enable customers to develop more energy-efficient products.

The device is supplied in die form for mounting on hybrid circuit boards and offers temperature monitoring between -40 ºC and 175 ºC. The LM95172Q features a 16-bit sigma-delta analog-to-digital converter (ADC), fast conversion rate of 35 ms and high resolution of 0.008 degrees C/LSB. The device also includes a temperature switch as well as self diagnosis to ensure safe, continuous operation.

www.national.com/sensors

New High Temperature Relay for White Goods

Omron is extending its popular G2RL power relay with a new, high temperature version, aimed specifically at home appliance cooking application and other heater control applications involving exposure to higher temperature conditions. The new product is available at distributor Rutronik now.

The new Omron G2RL-1A-E-CV is rated for use at temperatures up to 20ºC higher than the standard type, tolerating up to 105ºC as opposed to 85ºC for the standard component. It also offers superior switching performance with longer electrical endurance of up to 100,000 operations switching 16A at 250VAC and 105ºC. Initially released in SPST-NO open form, Omron is expecting to release the higher temperature versions in SPDT type, and also to offer normally closed (NC) versions.

Available in 24 different models, Omron’s G2RL PCB relay family is ideal for ovens, washing machines, boilers and HVAC equipment. The high sensitivity type, G2RL-H, has a coil sensitivity of 250mW and is available with a UL 1446 Class F Coil Insulation system. The relays conform to VDE (EN 61810-1/EN 60255-23) and UL 508/CSA C22.2 standards and meet VDE0700 regulations for safety of household and similar electrical appliances according to VDE0110.

www.rutronik.com

TI’s 60-V SWIFTTM DC/DC Converter with Eco-modeTM Technology for Light-Load Efficiency

Expanding on the TI’s popular integrated SWIFT™ family of DC/DC converters, the company has introduced a new 60V input, 1.5A output step-down switcher with integrated FET that achieves significant energy savings in light-load efficiency. The wide-input converter helps saves up to 33 % of board space compared to competitive wide-input voltage solutions and eases design in industrial and automotive applications.
The TPS54160 non-synchronous buck’s 3.5V to 60V input voltage range provides designers flexibility in applications with input transients. By leveraging TI’s innovative Eco-modeTM light-load switching technique, the converter is able to achieve a low 116-uA operating current and 1.3 µA shutdown current, resulting in longer system run-times and a more efficient power system design.

In addition, the converter’s high switching frequency range of 300 kHz to 2.5 MHz reduces the size of the output inductors to save board space. The TPS54160’s frequency fold-back and thermal shutdown features allow the converter to protect itself during an overload condition.

The device also has an integrated track pin that simplifies various sequencing schemes and a clock pin that reduces noise by synchronizing its switching frequency to an external clock.

TI’s SWIFT DC/DC converters serve a broad range of applications, such as telecom, computing, industrial and consumer point of load applications with input voltage ranges as wide as 60V and output currents as high as 14A.

www.ti.com

New Motor Connectors for Wind Power

The HM.16 motor-mount connector from Tyco Electronics simplifies the installation and maintenance of wind power turbines. The connector consists of a cast-aluminium housing that accepts various inserts from the HTS industrial connector family, an interface seal for IP65 protection, and a nickel-plated steel locking lever. The housing is available in several sizes to fit standard motor cutouts so that no motor redesign is required. The mounting footprint can be adjusted to fit the motor’s dimensions, up to 140mm x 140mm.

The housings can be ordered in a range of colours to allow unique identification of the motor by function or application such as yaw motor or azimuth motor. Options include the standard powder-coated finish, a corrosion-resistant finish, and a shielded version where additional EMI protection is required.

The HM.16 motor housing is a compact size 6 form factor within the HTS connector family. By using standard HTS inserts, the HM.16 motor connector allows designers to meet the widest range of application needs. The full range of inserts include typical high-current/voltage circuits covering 150 A/250 A/5000 V, 1 to 25-position power and control signal inserts, coax and Twinax, Ethernet, and many others.

www.tycoelectronics.com

New 1A Output Power Phototriac for White goods

Vishay Intertechnology now broadens its optoelectronics portfolio with the release of an integrated power phototriac that outputs currents up to 1 A to drive resistive and inductive loads. These products are suited for applications in the white goods market.
Offered in the 16-pin DIP package, the VO3526 consists of a GaAs infrared LED that is optically coupled to a monolithic photosensitive non-zero-crossing TRIAC detector chip. This in turn powers on an integrated power TRIAC. By eliminating the need for an external power TRIAC and requiring no heat-sink, the device cuts design costs and saves valuable board space.

Rated at 600-V blocking voltage, the power phototriac can provide isolation between DC and AC voltages on 120-V and 240-V AC lines, giving designers a 2X or better safety factor. For additional safety, the device offers an input-to-output isolation voltage of 5300 V. A low 10-mA input trigger current facilitates an easy interface with digital logic.
The VO3526 can also be used as a solid-state relay. Optimized for noisy environments, typical applications for the new device will include home appliances such as air conditioners, refrigerators, dishwashers, washer/dryers, and oven ranges as well as office automation equipment, temperature (HVAC) and lighting controls. These components are manufactured in accordance with RoHS 2002/95/EC and WEEE 2002/96/EC and are certified by key international safety regulatory agencies such as UL, CUL, and VDE.

www.vishay.com

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