Power MOSFET Delivers Smallest Size and On-Resistance for Type

April 11, 2008 10:07 am | Product Releases | Comments

Provided in a MICRO FOOT chipscale package with a 0.59 mm profile and a footprint of 1.5 mm × 1 mm, the Vishay Siliconix Si8441DB 20V p-channel TrenchFET power MOSFET is presented as having the industry’s lowest profile for this device type. It is also presented as having the lowest on-resistance for such devices with a range from 0.600O at 1.2V VGS to 0.080O at 4.5V VGS with a maximum gate-source voltage of +/- 5V.


Bidirectional Overvoltage Chip Provides Improved DSL Protection

April 10, 2008 9:27 am | Product Releases | Comments

With a construction that prevents surge events from being shunted into the ground and power plane, Littlefuse’s TwinChip SDP Series SIDACtor protection device provides improved DSL overvoltage protection as well as broadband driver amplifier protection for the secondary side of coupling transformers. The bidirectional device limits DSL secondary line voltage to a 43V peak with a surge current rating up to 100A for a lower and more stable off-state capacitance than typical thyristor overvoltage protection.


Transceiver IC Empowers 2.4 GHz Networks

April 10, 2008 6:52 am | Product Releases | Comments

Operating in the 2.4GHz band, the Nordic Semiconductor nRF24L01+ single-chip transceiver IC offers a 250kbps data rate option mode with a -94dBm sensitivity for up to triple the operating range over previous parts. Supporting up to six simultaneous wireless devices, the IC has a peak current of 13.5mA, enabling enough of a power budget to run a product on standard coin cell batteries.


Boost Controller IC Drives Solid-State Lighting

April 9, 2008 7:49 am | Product Releases | Comments

Intended for applications such as solid-state lighting where the output is a regulated current instead of a regulated voltage, the TPS40211 non-synchronous boost controller can drive multiple 1W to 5W high-brightness LEDs in series when the input voltage is less than the voltage required. Using a fixed-frequency current-mode control for improved transient


Radiation-Tolerant FPGAs Offer Multiple Platforms for Space Applications

April 8, 2008 10:46 am | Product Releases | Comments

Xilinx announced the immediate availability of radiation-tolerant Xilinx VirtexR-4QV FPGAs. The new Virtex-4QV family for space applications offers multiple platforms to meet the processing needs of video, audio, radar streams, and packet processing functions.


FETs Reduce the Size of Wireless Devices

April 7, 2008 5:39 am | Product Releases | Comments

Measuring 1.0 mm × 0.5 mm × 0.25 mm, Avago Technologies’ VMMK-1218 and -1225 field effect transistors (FETs) occupy less than 5 percent the volume of a standard SOT-343 package. The VMMK-1225 supports 0.5 GHz to 26.5 GHz frequency ranges with a noise figure of less than 0.95 dB and 12 dB available gain under 50 ohms conditions at 12 GHz. The FET also offers 23 dBm output third-order intercept and 8 dBm output power.


Wideband DAC Provides Low-Power Performance

April 4, 2008 7:39 am | Product Releases | Comments

Optimized for direct digital synthesis of high-frequency and wideband signals in the first Nyquist zone, the 12-bit, 4.0Gsps MAX19693 wideband DAC from Maxim Integrated Products can synthesize signals in the frequency range from DC to nearly 2GHz. Suitable for applications such as wideband communications, radar waveform and digital signal synthesis, the 11mm2 CSBGA device offers an SFDR of greater than 70dBc below 800MHz, and 62dBc at 1500MHz with a wideband-noise spectral density of -164dBm/Hz.


Driver and Power Amplifier Pair Offers Linear Performance

April 3, 2008 8:23 am | Product Releases | Comments

Mimix Broadband, Inc. introduced a highly linear driver and power amplifier pair covering 12 GHz to 16 GHz offered in RoHs compliant, 3 mm × 3 mm and 4 mm × 4 mm QFN plastic packages. The XP1042-QT driver amplifier provides +38 dBm OIP3, +25 dBm P1dB and 21 dB gain, while the XP1043-QH amplifier achieves +41 dBm OIp3, +32 dBm Psat and 20 dB gain. Features for both include on-chip temperature-compensated power detector, power and gain control through bias adjustment, on-chip ESD protection structures, DC by-pass capacitors, and BCB water coating.


Low-Power, Large Memory 16-bit MCUs Eliminate Need for External Cap-Touch Components

April 1, 2008 8:07 am | Microchip Technology Inc. | Product Releases | Comments

Microchip Technology added nine new members to the PIC24F 16-bit microcontroller (MCU) family which features low power (2.6 µA standby current) and large-memory (up to 256 KB Flash and 16 KB RAM). This 16-bit MCU includes an integrated Charge Time Measurement Unit (CTMU) peripheral, which


One-Chip PCIe to UART Serial Bridge Designed for Low Power Consumption

April 1, 2008 7:23 am | Product Releases | Comments

Pericom Semiconductor announced a PCI Express SBridge (serial bridge) product family, offering a one chip device for the CPU to UART (Universal Asynchronous Receiver Transmitter) I/O market. The product family consists of three different UART port count configurations:


GaN Power Transistor Addresses 2.5 GHz and 3.5 GHz Markets

April 1, 2008 6:27 am | Product Releases | Comments

Consisting of a broadband DC to 4GHz GaN-on-Si HEMT in a thermally-enhanced plastic package, the NPT1004 delivers up to 45W at 28V for high PAR and pulsed applications, up to 5W for 2.5GHz to 3.5GHz WiMAX applications, and 4.5W for 3.3GHz to 3.5GHz WiMAX applications. The Pb-free, RoHS-compliant device suits high peak to average power amplifiers for WiMAX and systems using pulsed waveforms such as in radar, telemetry, and medical applications.


Single-Channel Regulator Chip Claims High Efficiency and Accuracy

March 31, 2008 10:13 am | Product Releases | Comments

Integrating a switching voltage regulator, 1.5A-rated p-channel power MOSFET, and compensation circuitry in a TO-252S-5 package, the BD9870 single-channel step-down switching regulator has an efficiency of 88%, an output accuracy of ±1.0%, and a bias current of 3mA with a zero standby current. Deployable using only an external coil, diode, and output capacitor, the 900-kHz device can present a 60% board-space savings


TrenchFET power MOSFET Achieves Lowest On-Resistance

March 31, 2008 8:55 am | Product Releases | Comments

WIth an on-resistance/gate charge FOM of 98 (presented as a record for any VDS = 30V, VGS = 20V SO-8-size part) and a maximum on-resistance of 2.25 mO at a 4.5-V gate drive voltage, the Vishay Siliconix Si7192DP TrenchFET power MOSFET is presented as having the best performance for a device of its type. The n-channel device comes in a PowerPAK SO-8 package be used as the low-side MOSFET in synchronous buck converters, in secondary synchronous rectification, and OR-ing applications.


32-bit microcontrollers Designed for Flexibility

March 27, 2008 11:50 am | Product Releases | Comments

Combining the performance of an ARM926EJ core, a VFP, a LCD Controller, an Ethernet MAC, and USB, the NXP LPC3200 line of microcontrollers offer embedded designers the ability to reduce on-chip components and maximize power savings. Designed for flexibility in applications that require fast, simultaneous communications, the LPC3000 combines high-performance, low power consumption and a myriad of peripherals.


DC Motor Pre-driver Saves Power, Reduces Damage

March 27, 2008 11:31 am | Product Releases | Comments

Targeting office automation, telecommunications, consumer and industrial applications, the Allegro A4930 single-phase brushless DC motor pre-driver provides outputs that can drive N-Channel MOSFET H-Bridges with voltage ranges from 8V to 36V. Motor speed is regulated by either PWM or external analog voltage with programmable minimum speed and maximum motor current. Synchronous rectification is employed in the PWM off-cycle to reduce power dissipation, and startup current can be ramped up for reduced supply current surges and lock detection along with auto restart functions to reduce damage due to motor overheating.



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