Renesas Electronics Corporation announced a pair of innovative 80V DC/DC controllers that support the extra voltage margin needed for data center servers, 48V telecom, and rugged industrial equipment. The ISL81801 buck-boost controller acts as a “UPS on a chip” by enabling bidirectional current flow (forward or reverse) using constant-voltage and constant-current regulation. This allows a […]
LED Lighting
Ultra-high-luminance LEDs reduce headlamp power consumption
Seoul Semiconductor Co., Ltd. announced the introduction of its next-generation WICOP UHL (Ultra High Luminance) Series LEDs, which reduce headlamp power consumption up to 20% for electric vehicles, with an improvement of heat dissipation performance up to 40%. The company will begin mass production in 2021 and with promotions to key customers. Battery power consumption is […]
LED drivers in SOT1118D package features side-wettable flanks
Nexperia announced a new range of LED drivers in the space-saving DFN2020D-6 (SOT1118D) package. This case style features side-wettable flanks (SWF) which facilitate the use of AOI (automated optical inspection), and improve reliability. This is the first time LED drivers have been available in this beneficial package. The new leadless devices join Nexperia’s wide range of LED […]
Switch-mode driver/controller powers LED light engines
Innovations in Optics, Inc. introduces the Model 5000H switched-mode LED Driver/Controller for powering its patented and patent-pending High-Power LED Light Engines. It can also be used with third party LED illuminators as a constant current, DC to DC driver/controller. The 5000H LED Driver provides constant current in continuous or pulsed mode for LED arrays connected […]
n-channel MOSFET saves space, increases power density
Vishay Intertechnology, Inc. introduced a new 200 V n-channel MOSFET that offers industry-low typical on-resistance of 61 mΩ at 10 V in the 3.3 mm by 3.3 mm thermally enhanced PowerPAK 1212-8S package, in addition to improved on-resistance times gate charge — a critical figure of merit (FOM) for MOSFETs used in switching applications — […]
Compact broadband infrared LED enables mobile spectroscopy
The most important aspect of infrared light sources for near-infrared spectroscopy is to cover as broad a wavelength range of emitted light as possible. The larger this range, the more objects that can be analyzed. In order to determine ingredients or water content, the target object is illuminated with infrared light of a wide wavelength […]
Study shows slightly safer UV-C wavelength kills Covid-19 bug
Hiroshima University researchers say Ultraviolet-C light with a wavelength of 222 nm effectively kills SARS-CoV-2. Other studies involving 222-nm UV-C have so far only examined how well it kills seasonal coronaviruses structurally similar to the SARS-CoV-2 but not on the COVID-19-causing virus itself. Operation at 222 nm is said to be safer than emitting light […]
GaN-powered LED drivers target compact smart-lighting designs
Power Integrations announced a new member of the LYTSwitch-6 family of safety-isolated LED drivers for smart lighting applications – the LYT6078C. This new LYTSwitch-6 IC uses Power Integrations’ PowiGaN™ gallium nitride (GaN) technology to deliver efficiency and performance benefits, demonstrated by the new design example report (DER-920) the company is also announcing today. The PowiGaN-based LYT6078C […]
Higher contrast, better resolution: Automotive display full-array local dimming
By Logan Cummins, Infotainment Systems Engineer, Texas Instruments A local dimming backlight technology individually adjusts LEDs in an LCD panel to save power and improve contrast ratios in automotive displays. Compared to globally dimmed displays and organic LEDs (OLEDs), local dimming with LEDs is a more practical design choice because it can withstand the extreme […]
A better automotive display from pixel to picture with local dimming
By Logan Cummins, Infotainment Systems Engineer, Texas Instruments Automotive specifications and environmental conditions have caused the automotive display market to lag behind the consumer display industry in contrast ratio, black levels, resolution, curvature, and form factor. Automakers try to differentiate their infotainment human-machine interface (HMI) displays and catch up to the technological advances now common […]
