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Vishay's New Power SMD LEDs
Submitted by Ionela on Mon, 06/23/2008 - 07:19.
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Vishay Intertechnology Inc. announced the release of a new series of power surface-mount LEDs that deliver a significant advance in heat dissipation and brightness. The new VLMx32.. devices feature a PLCC 4 package with a lead frame optimized to provide very low thermal resistance down to 290 K/W and power dissipation up to 200 mW, which in turn enables high drive currents up to 70 mA for twice the brightness of Vishay's high-intensity SMD LEDs in the PLCC 2 package. For automotive applications, the VLMx32.. devices are automotive qualified per AEC-Q101. |
LT3592: 36V 2.2MHz Buck LED Driver Powers 500mA LEDs from a 2mm x 3mm DFN
Submitted by Ionela on Wed, 06/18/2008 - 07:25.
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Linear Technology announces the LT3592, a 36V step-down DC/DC converter designed to operate as a constant current LED driver. Its internal 36V, 900mA switch enables it to drive up to six 500mA white LED in a single string from a 36V input for industrial and LED signage applications. It can also drive two 500mA LEDs from a 12V lead acid battery input for automotive applications. Series connection of the LEDs provides identical LED currents, resulting in uniform brightness and eliminating the need for ballast resistors. The LT3592%u2019s switching frequency can be adjusted from 400kHz to 2.2MHz via a single resistor. |
TI brightens notebook LCD displays with new white LED driver
Submitted by Ionela on Fri, 06/13/2008 - 09:00.
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Texas Instruments Incorporated introduced an innovative, six-channel, 40-V white light emitting diode (LED) driver with a built-in, high-efficiency boost regulator and 1.5-A FET. The smallest LED driver to manage up to 60 white LEDs at once, the TPS61181 provides high power efficiency and accurate current regulation for medium-sized displays used in notebooks, portable GPS, industrial and medical applications. |
LT3755: 60V, High Side Sense LED Controller for Boost, Buck or Buck-Boost High Current LED Applications
Submitted by Ionela on Tue, 06/10/2008 - 07:04.
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Linear Technology announces the LT3755, a 60V, high-side current sense DC/DC converter designed to drive high current LEDs. Its 4.5V to 40V input voltage range makes it ideal for a wide variety of applications, including automotive, industrial and architectural lighting. The LT3755 uses an external N-channel MOSFET and can drive up to 14 1A white LEDs from a nominal 12V input, delivering in excess of 50 watts. It incorporates a high-side current sense, enabling it to be used in boost, buck, buck-boost or SEPIC and flyback topologies |
Vishay Releases New VLRE31.. and VLRK31.. Series of High-Brightness Yellow and Red SMD LEDs in Reverse Gullwing Package with 1.9
Submitted by Ionela on Mon, 05/12/2008 - 07:39.
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Devices Utilize AllnGaP Technology to Provide Luminous Intensity Range From 71 mcd to 285 mcd with 75-mW Power Dissipation MALVERN, Pa. May 9, 2008 Moving to meet the increasing demand for AlInGaP technology, Vishay Intertechnology, Inc. (NYSE: VSH) today released two new series of yellow and red SMD LEDs in the reverse gullwing package that offer exceptional brightness and low power consumption. |
Cypress To Show Lighting Solutions For Color And White Lighting Systems At Light+Building Fair In Frankfurt
Submitted by Ionela on Tue, 05/06/2008 - 05:35.
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Hands-on Demo Stations in Hall 4.2, Booth H11 to Include Intelligent Color-Changing, Tunable White, and Tunable Color Lighting and Programmable Control Gear SAN JOSE, Calif., April 4, 2008 - Cypress Semiconductor Corp. (NYSE: CY) today announced it will be demonstrating its lighting solutions portfolio, including its award winning EZ-Color design solution for intelligent LED lighting systems, at the Light Building trade show in Frankfurt, Germany from April 6 to 11. Cypress will demonstrate solutions for white lighting, intelligent color-changing lighting, tunable white and color lighting, and programmable control gear in hall 4.2, booth H11 of the Frankfurt Fair and Exhibition Center. |
High-Power, High-Voltage, Programmable LED Driver Is Ideal for Automotive and General Lighting Applications
Submitted by Ionela on Mon, 03/17/2008 - 08:14.
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SUNNYVALE, CA January 28, 2008 Maxim Integrated Products (Pink Sheets: MXIM) introduces the MAX16816, a high-voltage, programmable, high-brightness (HB) LED driver for automotive and general lighting applications. Far more versatile than competitive devices, the MAX16816 provides many user-programmable features through on-chip nonvolatile EEPROM registers. Using a microcontroller and a single-wire interface, the programming is done either at the factory or by the designer in the field. |
Vishay Releases New VLMW611and VLMW621 Series of Warm White Power SMD LEDs in CLCC-6 and CLCC-6 Flat Package With Industry’
Submitted by Ionela on Fri, 03/14/2008 - 08:30.
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Devices Utilize InGan Technology to Offer Luminous Intensity Range of 1800 mcd to 7100 mcd, and Low Resistance of 40 K/W and 50 K/W MALVERN, Pa. March 12, 2008 Vishay Intertechnology, Inc. (NYSE: VSH) today released two new series of warm white power SMD LEDs that utilize InGan technology to offer low resistance and high optical power. The VLMW611.. series is offered in the CLCC-6 package, while the VLMW621.. series features the CLCC-6 flat package, which offers an industry-low height profile of 0.9 mm. |
