New Products

Apr 1, 2008 12:00 PM

Fixed-Point Digital Signal Controllers

Texas Instruments' fixed-point digital signal controllers (DSCs) are entirely compatible in hardware and software with high-performance floating-point DSCs. The TMS320F282x series of DSCs combines the affordability of a fixed-point architecture with the faster software development inherent to floating-point devices. Floating-point algorithms that previously required significant recoding for fixed-point operation now can be recompiled in minutes to run on the F282x devices. The DSCs bring savings in time-to-market and manufacturing costs, enabling developers to design energy-efficient, less expense industrial applications, such as servo controllers, automotive radar, solar inverters and wind turbines.

The fixed-point F282x DSCs build on the success of TI's TMS320F283x floating-point DSCs, which double performance and cut development time in half from TI's previous-generation DSCs. The F282x controllers operate at up to 150 MHz, are 100% code compatible with F283x devices and can be programmed using the same development tools. The F282x controllers are also completely pin-to-pin compatible with the F283x series.

The TMS320F28235 DSCs are now sampling in limited quantities. Volume production is scheduled for all F282x fixed-point and floating-point DSCs in the second quarter of 2008.
Texas Instruments
Houston
www.ti.com/f282x

MOSFET Drivers

The MAX15024/MAX15025 high-speed, single/dual MOSFET drivers from Maxim Integrated Products come in a thermally enhanced, 3-mm × 3-mm, 10-pin TDFN package. The MAX15024 is a single gate driver capable of sinking up to 8 A and sourcing up to 4 A of peak current. The MAX15025 is a dual gate driver capable of sinking and sourcing up to 4 A of peak current.

Both devices have propagation-delay matching of typically 2 ns between channels, and usually less than 17 ns from part to part. An integrated adjustable LDO provides gate-driver amplitude control and optimization. The devices include a logic circuit to prevent internal shoot-through current during output-state change. They are available with either CMOS or TTL logic-level inputs. Pricing for the MAX15024/MAX15025 starts at $1.01 each in quantities of 1000.
Maxim Integrated Products
Sunnyvale, Calif.
www.maxim-ic.com

Switching Regulators

Recom International has extended its R-78 line of switching regulators with three series covering wide input-voltage ranges, higher output currents and higher input voltages.

The R-78Bxx-1.0 offers output voltages from 1.5 Vdc to 15 Vdc at a maximum output current of 1 A with an input-voltage range of up to 34 Vdc. It delivers up to 15 W of power in a SIP3 package. It is also available with 90-degree pins so that it can be laid flat on the pc board. The R-78Bxx-1.5 offers output voltages from 1.5 Vdc to 6.5 Vdc at a maximum output current of 1.5 A with an input-voltage range of up to 18 Vdc. Like the 1-A regulator, the 1.5-A regulator is also guaranteed to work in an ambient temperature from -40°C to 85°C without forced cooling. The R-78Bxx-1.5 is also available with 90-degree pins.

The R-78HBxx-0.5 offers output voltages from 3.3 Vdc to 24 Vdc at a maximum output current of 0.5 A with an input-voltage range of up to 9 Vdc to 72 Vdc. Other features include up to 96% conversion efficiency, typically 20-mV peak to peak ripple and noise, 1-mA quiescent current and up to 1.2 A of peak current output.
Recom International
Sprendlingen, Germany
www.recom-international.com

Electromagnetic Simulation Software

Ansoft's Maxwell v12 and RMxprt v12 electromagnetic field simulation software is for the design and analysis of 3-D/2-D structures, such as motors, actuators, transformers, and other electric and electromechanical devices common to automotive, military/aerospace and industrial systems.

Maxwell v12 solves time-varying electric fields due to a transient disturbance such as lightning strikes on electrical equipment. This latest version also is equipped with advanced model-healing capabilities, which will automatically identify and resolve potential problems with geometry imported from popular CAD systems and will streamline the solution process.

RMxprt is a specialized software program dedicated to the design of electric machines. This version has been upgraded with a new capability to solve three-phase non-salient synchronous machines, automated project setup for Maxwell and a new wire library allowing motor designers to study the effects of various wire types of a design prior to physical prototype creation.

Maxwell v12 and RMxprt v12 are available for Microsoft Windows XP Professional, Server 2003 Standard Edition, XP Professional x64 Edition, Server 2003 Standard x64 Edition, Red Hat Enterprise Linux v3 (32 and 64 bit) and v4 (32 and 64 bit), SuSE Linux Enterprise Server v9 (32 and 64 bit) and Solaris versions 8, 9 and 10.
Ansoft
Pittsburgh
www.ansoft.com