Backlight driver and general-purpose boost controller
7 March 2007
Opto-Electronics
Analog Devices' ADP1621 is a flexible boost controller configurable as a LED driver core that can be optimised with external components for almost all types of PWM current-driving LED backlight applications. For example, the ADP1621 can drive 10 LEDs in an automotive navigation display or 60 LEDs (in one or multiple strings) in a 15" notebook computer display, while achieving an efficiency rating of over 90%.
The average LED brightness can be adjusted by applying a PWM signal directly to the device. The ADP1621 employs a fixed-frequency, pulse-width modulation and current-mode step-up converter controller approach, and drives external N-Ch MOSFET. Its input voltage range is 2,9 V to 5,5 V and shutdown current is 10 μA.
Besides being configurable as a current source LED driver, the ADP1621 can also be configured as a boost, buck, flyback, SEPIC, or forward converter, either in isolated or non isolated topologies.
Further reading:
Enhanced breaker status and communication module
Schneider Electric South Africa
Opto-Electronics
Schneider Electric has announced the launch of its new Breaker Status and Communication Module (BSCM) Modbus SL/ULP, which delivers enhanced performance, improved connectivity, and simplified integration for power distribution systems.
Read more...
Heat-resistant LEDs
Opto-Electronics
Würth Elektronik’s new RGB LEDs are characterised by excellent heat resistance with an insensitivity to temperatures from -40 to 100°C making them ideal solutions for reliable, colour-variable lighting in applications at high operating temperatures.
Read more...
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...
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.
Read more...