LED Lighting

STMicroelectronics has used the ‘CAN FD Light’ protocol in a 32-channel automotive lighting controller. “With 32 regulated current sources, independently programmable from 1mA to 15mA, L99LDLH32 can drive individual pixels in external and interior lighting applications. Global dimming is also provided, with 8-bit resolution,” according to the company, whose data sheet said that it is particularly aimed at external rear ...

Aiming at so-called circadian lighting, Nichia has introduced an ‘azure’ coloured LED for people to wake up to. “What has been lacking in conventional indoor lighting is 480nm light, which is abundant in the morning sun,” according to the company. “This 480nm light stimulates the secretion of serotonin and activates the human body and mind. The more serotonin secreted in ...

Gaggione has produced a family of 45mm collimators for cob (chip-on-board) leds. VEGA45V produces a 50° beam Called Vega, they follow on from its 45mm LLC59 colimators. Like LLC59, Vega collimators will be available in PMMA plastic, but also in polycarbonate. There are eight beam options, some of them compatible with colour mixing or tunable white use. Compatibility is said to ...

For hyperscale data centres, preparing for ‘co-packaged optics’ (CPO) Molex has announced a pluggable module for external laser sources, with a cage and blind-mating hybrid optical-electrical connector. It is called Elsis. “Traditional pluggable modules have their optical connections at the user side of the module, creating concerns about eye safety when used with high-power laser sources, such as those planned ...

Led lighting certification body Zhaga has announced the first products that have met its ‘Book 24’ definition of luminaires that can be programmed over NFC (near-field communications). “Tridonic is the first company that has earned Zhaga-NFC certification for a number of their LED drivers [right],” according to Zhaga, and they can now carry the Zhaga-NFC certification logo. Book 24 application ...

Diodes has introduced a 36V low-drop linear driver for strings of LEDs, with 5kV ESD protection on the input and output current adjustable up to 100mA. The company describes AL5819, as it is known, as “ideal for 5V, 12V, and 24V LED lamps and strips”. Vin and the top of the LED string can be the same or different – ...

Toshiba has released a ±2.5A output IGBT gate driving photo-coupler with and isolated fault feedback, that can also drive mosfet gates. Called TLP5212, it “features a new totem pole output with two n-channel mosfets,” according to the company. “In addition, the photocoupler incorporates de-saturation detection, active Miller clamp, under-voltage lock-out, soft gate turn-off and a fault output.” Maximum propagation delay ...

460W of regulated dc is available from a 76 x 127 (3 x 5inch) footprint open frame power supply, which can also deliver 340W without forced air cooling, thanks to its 94% efficiency. Called DDP460 series and made by Enedo Power, it comes in 24, 48 and 56V output versions – samples are available of these – and with 12 ...

XLamp XHP70.3 leds are the third generation of Cree’s ‘extreme high power led series’, with improved optical performance versus the previous generations, with higher intensity through optics than the second generation and with the XHP family’s highest on-axis intensity. They are optimised for outdoor and lighting applications that require large amounts of light output from small luminaires, such as in ...

ST has launched a digital power controller with distortion mitigation suitable for LED-lighting applications. The STNRG012 contains a multimode power-factor correction (PFC) controller, resonant half-bridge controller, and 800V startup circuit, managed by a digital engine. The PFC controller changes dynamically between transition-mode, discontinuous-current mode (DCM), and valley skipping for optimum efficiency. The half-bridge controller executes ST’s time-shift control (TSC) for soft switching. With ...