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Mini POL Regulator Saves Board Space

June 27, 2008 6:31 am | Comments

With a package footprint of 15 mm² and a height of 2.8 mm, the LTM4616 DC/DC µModule from Linear Technology includes all the support components needed for a single or dual point-of-load (POL) regulator: inductors, capacitors, DC/DC controller, compensation circuitry, and power switches.

IC Targets DDR Cache-Memory Backup

June 26, 2008 10:09 am | Comments

Targeting DDR cache-memory backups, Maxim Integrated Products’ DS2731 power-management IC (PMIC) integrates a single-cell Li+ charger with FETs at a rate up to 1.5 A from a 12-V supply to eliminate over 15 discrete components in existing solutions. The device uses an internal comparator with a power-steering system to switch from system to battery power when the auxiliary supply falls below

PoE Splitter Supports Wimax, Multi-Radio Access Points

June 26, 2008 7:46 am | Phihong | Comments

Delivering up to 45 W, POE45-120 Series of power-over-ethernet (PoE) splitters from Phihong divide the power and data and converts the PoE source to a regulated DC power source for Wimax, multi-radio access points, thin-client, and other network devices. The Gigabit-compatible modules mount adjacent to the Ethernet device

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Relays Handle 4000 Vrms

June 26, 2008 5:17 am | Comments

Delivering up to 4000 Vrms of contact, CIT Relay & Switch’s J115F1 Series high dielectric-optioned relays have a minimum contact-to-contact strength of 1500 Vrms in SPST N.O., SPST N.C., or SPDT contact arrangements. The AgSnO2 or AgSnO2In2O3 devices provide voltage options from 3 to 100 VDC and

Power Supplies Drive Outdoor LEDs

June 25, 2008 11:39 am | Comments

Measuring 4.84” x 6.54” x 2.22” in IP65-rated aluminum-enclosed housing, DongAh Elecomm’s LED-240 Series 240-W switching power supplies are designed for outdoor LED lighting and sign applications. Meeting NEC Class II safety requirements, the units have four 60-W 12-VDC outputs rated at 5 A each. The UL1310/1585-approved devices offer a universal input ranging from 90 to 264 VAC with a frequency range from 47 to 63 Hz and over 85% efficiency. The EN6100-3-2-compliant supplies

MOSFET Driver Provides 200 V

June 25, 2008 9:45 am | Comments

Providing a bridge supply voltage of up to 200 V, Supertex’s MD7120 full-bridge power MOSFET driver has an output voltage range from 12 V to 200 V with ±5 ns dead time matching and rise or fall times of less than 30 ns with a typical 1 nF load. The N-channel device drives over 100 W output with over 90% efficiency from normal logic level inputs by directly coupled internal level translators. The internal core of the RoHS-compliant driver consists of over-temperature, under-voltage and current

Resistor is Rated to 550 kO

June 25, 2008 5:47 am | Comments

Having a resistance range from 0.01 O to 550 kO, Vishay Intertechnology’s D2TO35 35-W thick film power resistor has a thermal resistance of 4.28°C/W junction-to-case at 25°C. The tinned-copper connections for the device support soldering temperatures at +270°C and are specified for operation in a temperature range from -55°C to +175°C. The RoHS-compliant resistor features a standard temperature coefficient of

Buck Converters Drive LEDs

June 24, 2008 12:18 pm | Comments

Appropriate for lighting applications using batteries and lighting fixtures with transformers, PREMA Semiconductor’s PR4101 Series buck converters drive single or multiple LEDs with currents from 100 mA up to several Amps. Accepting an nominal input from 9 to 40 VDC, the inductive devices can be modified to accept 12 or 24 VAC with additional components. With a standby current of  less than 35 µA, the buck converters

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Development Kit Creates Multi-Touch User Interface

June 24, 2008 11:27 am | Comments

Presented as the first commercially available, the SMK 15.4 development kit from Stantum Technologies can enable designers and integrators to develop a multi-touch display user interface. The resulting interface lets users simultaneously move an unlimited number of fingers, nails or utensils (such as styli) on a screen.

Military Converters Deliver from 3 to 5 kVA

June 24, 2008 11:17 am | Comments

Providing an output from 3 to 5 kVA, Falcon Electric’s ED-FPC Series rackmount frequency and phase converters accept a 3-phase input with a frequency range from 40 to 450 Hz and provides a single-phase 120 VAC at 50, 60, or 400 Hz. The 4µ devices provide a sinewave output with ±3%

Tuner Circuit Reduces Noise and Distortion

June 24, 2008 6:32 am | Comments

Reducing noise and distortion in CATV set-top boxes, DVRs, PC TV tuner cards and other tuner-on-board applications, the AIT1032 from Anadigics, is a 1 GHz tuner that incorporates an upconverter, downconverter, VCO, synthesizer, RF and IF amplifier, and RF and IF gain control functions. The tuner also provides

Power Supply Delivers High Power Density

June 24, 2008 6:07 am | Comments

Delivering a power density of over 76W per in2, the EN5395QI from Enpirion, is a 9A DC/DC converter that features integrated-inductor technology and a high switching frequency.  The technology enables the PwrSoC (power supply on a chip) to attain noice immunity with a small footprint.  The part also offers

Chip Uses Novel Sleep Mode to Set Low-Power Record

June 24, 2008 4:23 am | Comments

A low-power microchip developed at the University of Michigan uses 30,000 times less power in sleep mode and 10 times less in active mode than comparable chips now on the market.The Phoenix Processor, which sets a low-power record, is intended for use in cutting-edge sensor-based devices such as medical implants, environment monitors or surveillance equipment. The chip consumes just 30 picowatts during sleep mode.

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Bipolar Gate Drivers Enable Faster Switching

June 23, 2008 10:58 am | Comments

Enabling faster charging and discharging of gate capacitances than gate driver ICs, the ZXGD3000 Series of non-inverting bipolar gate drivers have propagation delays of less than 2 ns and rise/fall times of approximately 10 ns. Provided in a 6-lead SOT23 package, the devices have independent source and sink output pins and

LED Panels Incorporate Direct Die Attachment Technology

June 23, 2008 10:49 am | Comments

Providing direct die attachment (DDA) technology, American Bright’s family of 5W or 10W LED panels has typical flux ratings of 800 lumens and 300 lumens, respectively. The Y-bin 10W module has a forward voltage of 36V DC at 320 mA and will typically produce 800 lumens, creating a luminous

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