Toshiba expands PLCC-2 high-brightness white LED line with warm white offerings

Toshiba expands PLCC-2 high-brightness white LED line with warm white offerings

High-brightness, surface mount LEDs provide excellent color uniformity

IRVINE, Calif., June 8, 2009 — Toshiba America Electronic Components, Inc., (TAEC)* has expanded its lineup of compact, high-efficiency white light emitting diodes (LEDs) with three devices in PLCC-2 packages in daylight (or cool) white and two warm whites. These white LEDs are among the brightest white LEDs in Toshiba’s current LED product line in this form factor.

“Toshiba has added these new white LEDs to address the market requirements for interior lighting, automotive and LCD backlight applications. We are aggressively introducing high-quality white lights that are capable of high color uniformity and brightness,” said Roger Shih, business development engineer, optoelectronics, for TAEC.

The daylight white TLWK1100C LED delivers luminous intensity of 1700 millicandelas (mcd) from a drive current of 20mA. This new device is 200 mcd brighter than the previous generation TLWK1100B, one of Toshiba’s most popular white LEDs, and is well-suited for use in automotive and LCD backlighting applications. At 86 lumens per watt (lm/W), it features luminous flux (typ.) of 5.5 lumens (lm), color temperature of 6500K and chromaticity coordinates of Cx 0.31 and Cy 0.30.

Two new warm white devices for general and backlighting applications include the TLWWK1100B and the TLWLK1100B. These LEDs feature luminous intensity of 1500mcd. Both devices are offered at 77lm/W and feature luminous flux (typ.) of 4.9lm, and color temperature of 3500K and 3000K, respectively. The 3500K device has chromaticity coordinates of Cx 0.40 and Cy 0.39, and the 3000K device has chromaticity coordinates of Cx 0.44 and Cy 0.40.

All three LEDs are housed in a standard PLCC-2 surface-mount package that measures 3.2mm x 2.9mm x 1.9mm. Their high brightness white light output is a result of a combination of a blue InGaN (indium gallium nitride) LED and a yellow-emitting phosphor. The devices offer efficient operation with maximum power dissipation of 114mW and typical forward voltage (VF) of 3.2V. Operating temperature ranges from -40°C to 100°C.

Electrical and Optical Characteristics (Ta -25°C, IF =20mA)

Part number Color Color Correlated Temperature Luminous Intensity IV(mcd) Forward Voltage

VF (V) Chromaticity Coordinates (Cx) (Cy)

typ. min. typ. max typ.

TLWK1100C Cool white 6500K 1250 1700 2500 3.2 0.31 0.30

TLWWK1100B Warm white 3500K 1000 1500 2500 3.2 0.40 0.39

TLWLK1100B Warm white 3000K 1000 1500 2500 3.2 0.44 0.40

Absolute Maximum Ratings (Ta = 25°C)

Part Number DC Forward Current I F (mA) Power Dissipation PD(mW) Operating Temp. Topr(°C) Storage Temp. Tstg (°C)

TLWK1100C 30 114 -40 to 100 -40 to 100

TLWWK1100B

TLWLK1100B

Pricing and Availability

The Toshiba TLWK1100C, TLWWK1100B and TLWLK1100B white LEDs are available now, with samples priced at $0.25/each.

Toshiba’s Discrete Products

Since 1986, Toshiba Corp. has ranked as the top discrete supplier on a worldwide basis, based on annual revenue from international shipments of total discrete products. According to the most recent annual report from market research firm Gartner Dataquest (San Jose, CA), Toshiba remained the top discrete semiconductor supplier. (Source: “2008 Worldwide Semiconductor Market Share Report,” Gartner, released April 2009). More specifically, Toshiba is a leading supplier in a number of discrete product categories, including power transistors, rectifiers and thyristors, LMOS logic, CMOS logic, photocouplers, Toslinks TM , LEDs, small signal diodes and transistors. The company’s discrete devices are designed to meet the growing demand for high-performance and lower voltages in today’s wireless telecommunications and consumer electronics applications, while emphasizing its strength in the automotive and industrial markets.

http://www.toshiba.com/taec/news/press_releases/2009/opto_09_570.jsp