Power Electronics

New Products

High-Voltage Capacitors

AVX has expanded its high-voltage multilayer capacitor series to include a 630-V range. Providing a high-capacitance value, low ESR at high frequencies and low leakage values in a small package, the 630-V range capacitor is designed as a drop-in replacement for a wide range of high-voltage, high-frequency applications.

The 630-V range is available in RoHS-compliant, tin-lead terminations and FLEXITERM versions. FLEXITERM enhances the mechanical flexure and temperature cycling performance of a standard ceramic capacitor, providing a solution for applications where board flexure and temperature cycle damage are a concern.
AVX
Myrtle Beach, S.C.

www.avx.com

Magnetic Encoder

Avtron Manufacturing's HS35M magnetic encoder can be used to provide precise speed control. The encoder is designed for industrial applications, and its hollow-shaft, insulated design can be fit directly onto motor and machine shafts.

The magnetic encoders' insulated housing protects against motor shaft currents that can destroy the bearings in conventional units. Also, the HS35M shaft sizing inserts allow customers and distributors to quickly resize the product. An optional industrial EPIC-style connector eliminates the need for soldering to connect the HS35M encoder.
Avtron Manufacturing
Independence, Ohio

www.avtronencoders.com

Power Management Unit

Broadcom's BCM59001 power management unit (PMU) is designed to satisfy the complex power system requirements of mobile handsets and other portable devices. The Broadcom system-on-a-chip PMU intelligently manages power consumption in mobile devices to optimize system operation and maximize battery life. The PMU can be paired with Broadcom or other baseband processors, multimedia processors or application processors.

The BCM59001 is offered with a complete set of software and device drivers to offer a high level of programming flexibility and a complete system solution. Housed in a 6-mm × 6-mm QFP package, the PMU is priced at $2.49 each in quantities of 100,000.
Broadcom
Irvine, Calif.

www.broadcom.com

Motor Drivers

Atmel's ATA6824, ATA6827 and ATA6832 are driver ICs for high-temperature applications. The devices are designed using high-voltage SMARTIS technology that enables chip temperatures to 200°C. Ambient temperatures of up to 150°C can be achieved. To design a complete motor-control system solution, designers can combine the driver ICs with Atmel's ATmega 8-bit AVR Flash microcontrollers qualified for high-temperature automotive applications.

The ATA6827 is a fully protected triple half-bridge driver with integrated power stages to control up to three different loads by a microcontroller. The ATA6832 provides an additional PWM functionality up to 25 kHz, enabling a dc motor control to be generated without any audible noise. The ATA6824 is suited for higher output currents.

In quantities of 10,000, pricing is $1.85 each for the ATA6824, $1 each for the ATA6827 and $1.05 each for the ATA6832.
Atmel
San Jose, Calif.

www.atmel.com

Synchronous Rectification IC

International Rectifier's IR1166 SmartRectifier IC is suited for ac-dc power converters. Enabling smaller and cooler supplies, the eight-pin IR1166 IC simplifies the design of midpower secondary synchronous rectification circuits of resonant half-bridge converters and flyback converters designed for 50 W to 150 W in discontinuous conduction mode, critical conduction mode and continuous conduction mode.

The IR1166 is available immediately in an SO-8 package and soon in a DIP-8 package (the IR1166PbF).Unit pricing in quantities of 10,000 is $0.70 each.
International Rectifier
El Segundo, Calif.

www.irf.com

Multilayer Chip Inductors

FDK's AML0603E series of multilayer chip inductors are suited for high-frequency circuits and modules of mobile phones that require high Q factors. Compared to the conventional AML0603Q series, the AML0603E increases Q factors while reducing high-frequency loss by 20% to 30% in high-frequency bands, especially greater than 500 MHz. The 0603E series consists of 20 products covering inductance values from 2 nH to 12 nH.

These 0.6-mm × 0.3-mm × 0.3-mm chip inductors are developed by using simulation technology with computer-aided engineering, fine ceramic material technology and multilayer process technology.
FDK
San Jose, Calif.

www.fdk.com

Automotive Microcontroller

Texas Instruments' symmetrical dual-core microcontroller units (MCUs) support certification according to the IEC 61508 SIL3 standard, the highest level of safety that is designated for automotive applications. Codeveloped with Robert Bosch, the MCU will be implemented in next-generation braking, steering and chassis-control applications.

The MCU uses two identical Cortex R4 cores from ARM Ltd. combined with an initial 2 MB of on-chip Flash memory. The dual cores are tightly coupled by a patent-pending architecture for maximum reliability, while memory is protected by error-correcting code bit checking. The FlexRay networking protocol is implemented directly on the MCU.
Texas Instruments
Dallas
www.ti.com

EM Simulation Module

The AC/DC Module from COMSOL Multiphysics accelerates the design and prototyping of devices such as motors, magnets, transformers, power lines and energy-conversion systems. Users can select better materials and help a device or component reach an optimal value of a desired circuit parameter with minimum cost, time, size and peak performance.

To help users learn how to apply the AC/DC Modules, the software comes with a model library containing more than 25 real-world examples. Each model has a detailed technical description of the underlying physics along with step-by-step instructions on how to create the model. In this way, users learn how to apply the software to a particular application.
COMSOL Multiphysics
Burlington, Mass.

www.comsol.com

Motor Controller

Microchip Technology's PIC18F1330 and PIC18F1230 8-bit microcontroller units (MCUs) for basic, open-loop and low-end closed-loop systems address motor control applications where cost and space are primary design concerns.

The devices combine a specialized PWM peripheral with up to six channels and 10 MIPS performance at 40 MHz in packages as small as 18 pins. At the same time, these MCUs provide an upward migration path from the general-purpose PIC16F MCU families and migration to the PIC18F4431 family for more sophisticated motor control applications.

The PIC18F1330 and PIC18F1230 MCUs are available in 18-pin PDIP and SOIC, 20-pin SSOP and 28-pin 6-mm × 6-mm QFN packages. Pricing starts at $2 each in quantities of 10,000.
Microchip Technology
Chandler, Ariz.

www.microchip.com

Micro Fan

Measuring 15 mm × 15 mm × 6 mm, JARO Thermal's Super-Flow Micro fan spins at 15,000 rpm. Producing 0.22 CFM of cooling air, this model is ideal for PDA, cell phone and other small-space applications.

The Super-Flow Micro is designed to provide a minimum of 50,000 hours of product-life ouput. Pricing for the Super-Flow Micro is $5.25 each in quantities of 1000.
Jaro Thermal
Boca Ratan, Fla.

www.jarothermal.com

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