Atmel Launches Unique Two-Channel LED Drivers for High CRI Professional and Consumer Lamps

 Atmel Launches Unique Two-Channel LED Drivers for High CRI Professional and
                                Consumer Lamps

MSL2021/23/24 Devices Deliver High Light Quality for Warm White High Color
Rendering Index (CRI) LED Lamps with Industry's Most Efficient Power
Management and Lowest Component Count

PR Newswire

SANTA CLARA, Calif., Feb. 12, 2013

SANTA CLARA, Calif., Feb. 12, 2013 /PRNewswire/ --Strategies in Light -
Atmel^® Corporation (NASDAQ: ATML), a leader in microcontroller (MCU) and
touch solutions, 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.


Ideal 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.

The new MSL2021/23/24 LED devices have several distinct advantages when
compared to existing LED drivers:

  oThe 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.
  oThe 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.
  oThe 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.
  oThere are several dimming options and I2C interface for additional
    flexibility and control.

"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:

  oMSL2021 -- the first LED driver with integrated temperature compensation
    for the color LED string
  oMSL2023 -- offering I2C serial port and internal pulse-width modulation
    (PWM) generators
  oMSL2024 -- featuring individual PWM input pins

Pricing and Availability
The new devices are available now. Pricing for 1,000-piece quanties follows:

  oMSL2021 starts at USD $3.10
  oMSL2023 starts at USD $2.74
  oMSL2024 starts at USD $2.52

To accelerate a design, evaluation kits are also available through your local
sales representative. 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.

More Information
Atmel MSL2021/23/24 LED Drivers:
Atmel YouTube Channel:
Embedded Design Blog:

About Atmel
Atmel Corporation (Nasdaq: ATML) is a worldwide leader in the design and
manufacture of microcontrollers, capacitive touch solutions, advanced logic,
mixed-signal, nonvolatile memory and radio frequency (RF) components.
Leveraging one of the industry's broadest intellectual property (IP)
technology portfolios, Atmel is able to provide the electronics industry with
complete system solutions focused on industrial, consumer, communications,
computing and automotive markets.

© 2013 Atmel Corporation. All Rights Reserved. Atmel®, Atmel logo and
combinations thereof, AVR^®, and others are registered trademarks, or
trademarks of Atmel Corporation or its subsidiaries. ARM^® is a registered
trademark of ARM Ltd. Other terms and product names may be trademarks of

No representation or warranties are made concerning third-party patents with
regard to the use of Atmel^® products. The mixing of red LEDs with
phosphor-converted LEDs may be protected by certain third-party patents, such
as U.S. Patent No. 7,213,940 and related patents of Cree, Inc.

Press Contact:

Agnes Toan, PR Manager

Tel: (+1) 408-487-2963, Email:

SOURCE Atmel Corporation

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