.gif)
.gif)
New Products
February 12, 2013
Atmel Launches Two-Channel LED Drivers for High CRI Professional and Consumer Lamps
Atmel® Corporation today announced three new two-channel solid state lighting (SSL) LED drivers that provide accurate color control for two-color LED light engines. In addition, the LED drivers deliver the most efficient power management, with the lowest component count, for high CRI LED lamps. Suited for applications including general lighting, residential and commercial lighting, architectural lighting, and mood lighting, the LED drivers consist of the Atmel MSL2021, MSL2023, MSL2024; all can be accompanied with an Atmel AVR® MCU or ARM® processor-based MCU for a complete system solution in a variety of luminaires and lamp configurations.
Recommended: Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
The new MSL2021/23/24 LED devices have several distinct advantages when compared to existing LED drivers: The devices drive one dominant LED string with a linear controller and one color LED string with a low-side buck controller to achieve the target correlated color temperature (CCT) coordinate, and replicate the color spectrum to attain a high CRI value. The devices have a look-up table in the EEPROM so designers can program accurate profiles to follow the desired CCT compensation curve, lowering the overall bill of materials (BOM) cost.
The linear controller for white LEDs in the device family adaptively controls the headroom of any AC/DC or DC/DC, isolated or non-isolated topology, while external MOSFETs give designers the flexibility of choosing LED currents and LED string lengths. There are several dimming options and I2C interface for additional flexibility and control.
Related: Alstom Grid and KEPCO Create Strategic HV Power Electronics Joint Venture
"White point control of an LED lamp is a key challenge for designing high-performance general, architectural or mood lighting," said Tushar Dhayagude, Director of LED Products, Atmel Corporation. "The MSL2021/23/24 LED devices address this key issue by enabling the control of two strings, typically comprising of white and red or amber LEDs, to provide precise white color control, while providing extraordinary power efficiency, flexibility and wide power levels for the lamps."
Key features for the three new devices include: MSL2021 -- the first LED driver with integrated temperature compensation for the color LED string. MSL2023 -- offering I2C serial port and internal pulse-width modulation (PWM) generators. MSL2024 -- featuring individual PWM input pins.
Opinion: Maximising Synergies between Power Electronics and ICT for improving Energy Efficiency
The new devices are available now. Pricing for 1,000-piece quanties follows: MSL2021 starts at USD $3.10. MSL2023 starts at USD $2.74. MSL2024 starts at USD $2.52
To accelerate a design, evaluation kits are also available. The new kits include an isolated AC/DC power supply, an integrated LED load board with one white and red LED string, and an on-board AVR MCU to I2C to USB/parallel bridge for programming the LED driver.
Share this story
Send via E-mail
Post to Twitter
On the Web:
White Papers
March 11, 2013
Power Modules for Charger Applications
Sponsored by Vincotech
February 27, 2013
The Adaptive Cell Converter Topology Enables Constant Efficiency Over Universal Input AC Line in Front-End, High-Density Power Factor Correction Applications
Sponsored by Vicor Corp.
February 27, 2013
From 48 V direct to Intel VR12.0: Saving "Big Data" $500,000 per datacenter, per year
Sponsored by Vicor Corp.
More White Papers
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- Ericsson Saves Board Space with Surface-Mount Digital Bus Converter
- SiC Modules, IGBTs and Super-Junction MOSFETs Introduced on Day One of PCIM
- SiC and GaN Again a Major Focus at PCIM Europe
- PowerbyProxi Joins Wireless Power Consortium
- Vincotech and Infineon Introduce New Packaging Options at PCIM Europe
- Bosch Claims First Sub-$450 240V EV Charging Station
- Eaton and CA Technologies Join to Deliver Infrastructure Management for Data Centers
- DOE Selects Consortium to Develop Next-Generation Batteries for Automobiles
- Dana Receives Grant from NRCan to Improve Thermal Management for EV Battery Packs
- Power-One Gets $1 Billion – ABB Gets Inverters
- Renesas Adds IGBT Drivers with Micro-Isolator for Electric and Hybrid Vehicle Inverters
- European Project Reports Achievements in Drive to Shape the Future of Power Microelectronics
- Bosch Claims First Sub-$450 240V EV Charging Station
- Eltek Signs Agreement with Caterpillar on Telecom Hybrid Systems
- LED Lighting Power & Dimming Controls Introduced by Phihong
- Digitally-Isolated Gate Drivers Provide Robust Drop-in Replacements for Opto-Drivers
- Power-One Q1 2013 Results include 4 Cents-per-Share Loss due to Synqor Litigation
- Europeans Establish Dueling Projects to Advance Power Electronics Technologies
- Fairchild's Integrated Low-Side Gate Driver Incorporates 3.3-V LDO in 5-Lead SOT-23
- Green Building Power Forum 2010: Fujitsu Components America
- Darnell's Digital Power Forum 2009: CUI Incorporated
- Green Building Power Forum 2010: EMerge Alliance
- Green Building Power Forum 2010: Anderson Power Products
- Green Building Power Forum 2009: Independence Station
- Darnell's Digital Power Forum 2009: Coilcraft
- Darnell's Digital Power Forum 2009: Champs Technologies
- Darnell's Digital Power Forum 2009: EXAR Corporation
- Darnell's Digital Power Forum 2009: PMBus
- Darnell's Digital Power Forum 2009: Power Plaza
Design Features
October 22, 2012
Energy Efficiency with Class D Amplifier Modules
Class-D switching amplifiers are helping audio designers create personal multimedia devices and home audio/visual systems that demonstrate how compact and stylish equipment can also deliver high sound quality and high audio output power. The key to this breakthrough, providing freedom from the large and bulky boxes housing traditional audio products, lies in the class-D amplifier’s high energy efficiency, which is typically around 90%. This allows designers to reduce or eliminate heatsinks as well as using smaller-sized PCBs and smaller components such as transformers, connectors and power supplies.
Design Features
October 8, 2012
The Role of Hall Effect Sensors in Power Distribution Infrastructure
Power distribution units (PDUs) form an essential part of modern computing and data communications hardware. They provide multiple outputs for transferring electrical power with maximum efficiency, controlling the power capacity and safeguarding against the possible causes of supply interruption. With an ever increasing need from tech savvy consumers for higher data throughput and greater quantities of data storage capacity, as well as tough international legislation now governing CO&sub2; emissions, the demands being placed on these units are proving challenging for engineering teams to satisfy.
Product Focus
August 13, 2012
The Year in AC-DC Power Supply Technology
The past year witnessed significant new product releases, technological developments, and industry news related to the field of AC-DC Power Supply technology.