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Infineon’s 0-10V dimming chip

Infineon CDM10V

Infineon has created an integrated circuit specifically for adding isolated 0-10V dc control to LED drivers. Called CDM10V, the chip comes in a tiny 6 pin SOT package. It can be used to transmit analogue voltage based signals from a 0-10 V dimmer or potentiometer to the dimming or PWM input of a lighting controller IC in the form of ...

Lightfair: Led Engin gets Bluetooth mesh control

LED Engin Bluetooth mesh

LED Engin will demonstrate its LuxiTune linear dynamic light engine at LightFair, claimed to be the world’s first Bluetooth low energy mesh-controlled tuneable white solution for linear luminaires. … what a list of caveats. End users can wirelessly configure, control and manage the luminaires. Installed in a 100 x 100mm 4foot fixture, the linear light engine delivers 650 lm/foot out ...

Ricoh gets into no-flicker LED lighting chips

Ricoh R1580

Ricoh has introduced its first LED lighting chip – apart from the camera/phone LED controller it makes. R1580 is a dc-fed constant-current LED driver controller that needs on mosfet and a handful of passives to make a driver. The novel bit is that it is either a fixed output device, programmable by a resistor, or it can be driven by ...

Osram epitaxy boosts high power led efficiency

Osram light droop

Osram Opto has cut led light output droop by optimising its epitaxial processes. At a current density of 3A/mm², quantum efficiency of the has been increased 7.5%. Under laboratory conditions and driven at 3A/mm2, 740 lm typical luminous flux was produced from QFN LED package (6,200K, Cx 0.319, Cy 0.323, single-chip LDxyz). At low current densities (0.35A/mm2), the increase was around ...

Amber led for car indicators

Luxeon F PC Amber Plus PC Amber

Luxeon F PC Amber and F Plus PC Amber are automotive leds binned to meet both SAE and ECE colour specs for indicators (turn signals), daytime running lights and side markers. Binning is at 85°C, and all Luxeon F leds are AEC-Q101 qualified. Output is around 80 lm for the F PC Amber at a nominal 350mA, and around 180 lm binned at ...

Lumileds hits 100,000hr at 105°C with harsh environment LED

Lumileds Luxeon HR30

Lumileds’ HR30 lighting led has been designed with robust packaging and materials to protect it from harsh environments, including chlorine and sulphur, and maintain output for 100,000 hours at 105°C. Chemical plants, power generation facilities and swimming pool buildings are potential applications. Chemical resistance is partially attributed to its gold-plated lead-frame and it has been tested to IEC68-2-43 (15 ppm): DLOP ...

Cree gets ~6,000 lm from 9mm diameter LED

Cree CXA2 High Density CoB array

Cree has announced ‘high-density’ version of its CXA2 lighting CoB leds. Packing more die into the same space, and swapping from to aluminium nitride (from Al oxide) substrates, has allowed the firm to roughly double the light available from each diameter. CXA2 products, both standard and high-density, share the CXB prefix. CXB1520 is the 9mm diameter emitter high-density product and ...

Cree claims record CCT, CRI, lm/W combination

Cree colour rendering

Cree is claiming a first, with a single LED delivering nearly 1,600 lm at 134 lm/W with “similar colour quality as an incandescent light bulb”. It is a lab demonstration. “Cree is focused on improving spectral content and the efficacy of warmer colour temperatures,” said Cree co-founder John Edmond. According to the firm, a current technology ’60W’ 3,000K and 80CRI led ...

Ikea’s great bulb: 1,800 lm and 90CRI

Spotted in Ikea, an interesting led replacement lamp. The headline figures are 1,800 lm 2,700K 90CRI 81 lm/W dimmable – a creditable, even remarkable, combination of figures for a replacement bulb, I feel. I have to say, as I don’t see any fins, I am trusting that Ikea tested the bulb under reasonable operating conditions – my normal rule of ...