Texas Instruments has introduced three new DC-DC LED drivers that simplify white colour tuning for high-colour rendering and ultra-low dimming in professional-grade indoor and outdoor LED lighting applications.
The TPS92660 two-string LED driver and TPS92640/1 synchronous buck controllers address the challenges of precise colour and brightness control lighting that designers face in creating high-quality light engines for commercial area lighting, including architectural and retail displays, as well as LED-based projection systems and automotive running lights.
The TPS92660 is an 80 V input voltage, two-string LED driver consisting of one DC-DC buck regulator and one linear channel for two-colour (typically white plus red) LED mixing. Using the I²C interface and one-time programmable ROM, a lighting manufacturer can precisely tune the white correlated colour temperature (CCT) and brightness of the luminaire during production to deliver high lumen quality.
This method of colour tuning eliminates the need for expensive binned LEDs, reducing system costs. Analog or pulse width modulation (PWM) input signals can be used for brightness and colour adjustment after ROM programming.
The TPS92640 and TPS92641 are 85 V input voltage, adjustable frequency, synchronous buck DC-DC LED controllers with high contrast ratios that deliver smooth, deep dimming profiles required in indoor/outdoor area lighting and LED projectors.
The controllers accept analog and PWM inputs resulting in dimming ratios of 500:1 and 2500:1, respectively. Continuous-conduction mode operation preserves dimming linearity, which enables the devices to provide true analog ‘dim to zero’ capability. The TPS92641 adds one input and one output pin for 20 000:1 ratio parallel shunt FET dimming.
PhotoMOS relays Future Electronics
Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.
Read more...Mouser now shipping onsemi’s image sensors TRX Electronics
Opto-Electronics
The AR0145CS is a 1/4,3-inch CMOS digital image sensor with a 1280 (H) x 800 (V) active-pixel array that can capture both continuous video and single frames.
Read more...Adaptive optics’ power solution Altron Arrow
Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.
Read more...Ultra-high speed photo detection
Opto-Electronics
TDK Corporation has announced a photo-spintronic conversion element combining optical, electronic, and magnetic elements that can respond at an ultra-high speed of 20 picoseconds.
Read more...High-speed lasers RFiber Solutions
Opto-Electronics
Macom are a high-volume manufacturer of lasers, deploying more than 100 million devices with a reliability of less than 50 FIT and greater than 100 years of wear-out lifetime
Read more...High-performance optical interconnect
Opto-Electronics
STMicroelectronics has unveiled its next generation of proprietary technologies for higher-performing optical interconnect in datacentres and AI clusters.
Read more...First NVMe SSD Built with 8th-gen BiCS FLASH EBV Electrolink
Computer/Embedded Technology
KIOXIA recently announced the development and prototype demonstration of its new KIOXIA CM9 Series PCIe 5.0 NVMe SSDs, which incorporates CMOS directly Bonded to Array technology.
Read more...IMU with dual-sensing capability EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.
Read more...Halo mid-board optical transceiver Spectrum Concepts
Opto-Electronics
The Samtec Halo mid-board transceiver has been designed for next-generation embedded applications that require 56 and 112 Gbps PAM4 performance in low profile and ruggedised form factors.
Read more...New generation of Ethernet media converters IOT Electronics
Opto-Electronics
Phoenix Contact is introducing three new families of media converters to the market, each designed for specific industrial environments and challenges.
printer friendly version