Power Electronics

New Products

Ultrasmall Gate Drivers

Dual-channel LM5111 and single-channel LM5112 gate drivers are for driving large power MOSFETs used in ac-dc and dc-dc converters, motor drives and industrial control systems. The LM5112 comes in a 3-mm × 3-mm LLP-6 package and enables the design of high-performance dc-dc converters. The LM5112 operates at high speeds with minimal delay and high peak output currents.
National Semiconductor
Santa Clara, Calif.

Circle 301


These transformers offer factory-installed WA and WB fusing options to help customers comply with UL Standard 508, NEC430-72(C) and NEC450.3(B). The WA includes a 2-pole, primary fuse holder for Class “CC” fuses. A secondary fuse holder accepts a type 3AG or equivalent glass fuse. The WB uses the same primary fuse holder.
Rosemont, Ill.

Circle 302

Dual-Phase PWM Controller

The TPS40130 with integrated adaptive gate drivers saves board space and simplifies power design for dual-channel, multi-phase systems supporting up to 60 A, such as double-data rate (DDR) memory banks, point-of-load dc-dc converters, digital signal processors (DSPs), and ASICs used in telecom and networking power supplies.
Texas Instruments Inc.

Circle 303

Low-Profile SMT Inductors

The IHLP family of low-profile SMT inductors has been expanded to include inductance values of 5.6 µH, 6.8 μH, 8.2 μH and 10 μH, each with a ±20% tolerance. These inductors feature typical DCR values as low as 0.47 mΩ, saturation currents from 15.5 A to 120 A, and low losses at frequencies up to 5 MHz. Inductors come in 0.508-in. × 0.520-in. × 0.256-in. self-shielded packages.
Vishay Intertechnology Inc.
Malvern, Pa.

Circle 304

Power Supplies

The SWS family of power supplies now includes 300-W and 600-W versions. The SWS300 and SWS600 Series each accept a wide range of input voltages from 85 Vac to 265 Vac and contain active PFC (power factor correction) circuitry to meet EN61000-3-2 standards. The units are available with either 5-V, 24-V or 48-V outputs and currents up to 120 A.
Lambda Power,
San Diego, Calif.

Circle XXX

DC-DC converters

24-V input eighth-bricks and quarter-bricks have been added to the Typhoon family of board-mounted dc-dc converters. The new product series initially comprises two 20-A eighth bricks and two 30-A quarter bricks, offering single isolated outputs of 1.8 V and 3.3 V. The 24-V input Typhoon brick converters are primarily intended for 27-V wireless base stations, space-critical telecom applications and general 24-V industrial electronics systems. The converters' nominal 24-V input accommodates any voltage in the range 18 V to 36 V, making them suitable for distributed power architecture (DPA) systems with either 24-Vdc or 28-Vdc power distribution buses.
Artesyn Technologies,
Framingham, Mass.

Circle XXX

AC-DC Power Supply

The MPU200-1048 ac-dc power supply provides a 4.2-A, 48-Vdc output. The 200-W product has a field MTBF in excess of 1 million hours, based on data compiled from an installed base of over 500,000 similar MPU-Series products, making it an ideal high-reliability power source for telecom, datacom, medical, and industrial applications. Standard features include Power Factor Correction (PFC), 85-Vac to 264-Vac input range, and active current sharing with N+1 redundancy. An internal isolation diode is optional.
Power-One Inc.,
Camarillo, Calif.

Circle XXX

IGBT Modules

The FMG2G50US120 and FMG2G75US120 are 1200-V, 50-A- and 75-A rated IGBT modules. With optimized on-state loss (VCE(sat)) vs. turn-off switching loss (Eoff), they provide low overall power loss in welding machines, uninterruptible power supplies (UPS) and general inverters in the 10-kHz to 30-kHz operating frequency range.
Fairchild Semiconductor,
South Portland, Maine

Circle XXX

Optocoupler Driver

Housed in a tiny SOT-23 package, the LT4430 optocoupler driver offers a precision low-voltage reference (0.6 V, ±0.75%), a high-bandwidth (9 MHz) error amplifier, an inverting optocoupler driver and an overshoot control circuit. It has a wide input supply range from 3 V to 20 V. Applications include 48-V input isolated dc-dc converters, industrial control systems, automotive and heavy equipment power supplies.
Linear Technology Corp.,
Milpitas, Calif.

Circle XXX

Standalone Design Tool

Package Thermal Designer (PTD) is a standalone tool designed for either packaging or electrical engineers. Launched directly from within Encore, PTD V2.0 automatically constructs a 3-D thermal model using detailed design data, including traces, vias and wire bonds from the Encore database. The easy-to-follow user interface incorporates a tree structure that makes quick work of defining the package stack up.
Harvard Thermal,
Harvard, Mass.

Circle XXX

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