Marvell 20Watt 2-Stage, 2-Channel Smart External LED Driver Reference Design For Evaluation of the Marvell 88EM8042 and 88EM8801 LED Driver ICs PRODUCT OVERVIEW Marvell® offers a 20Watt 2-Stage, 2-Channel Smart External LED Driver Reference Design that is a turnkey manufacturing-ready kit for commercial lighting applications. Supporting designs up to 20 Watts, the reference design can be used for the development of commercial lighting fixtures, such as downlights or troffers, that independently control two strings of LEDs. It has been designed in a modular fashion to allow end users to develop products that meet various lighting control requirements. The basic kit includes the 20Watt Marvell 88EM8042 Base Board and the Marvell 88EM8801 module encased in housing, plus a Quick Start Guide, User Manual, design files, transformer specification and test reports. This base configuration is specified for Universal Input Voltage and two LED outputs (30VDC/500mA) and supports 0-10V dimming down to five percent. More functionality can be achieved with the addition of the optional modules, which plug into the base board: 0-10V two-wire dimming module, DALI network module or ZigBee (RF) wireless network module. The addition of these modules, which support the latest industry standards, can be used for dimming down to one percent, smart lighting control including on/off control, occupancy sensors, dimming, CCT tuning or color management. For design flexibility, the Marvell 88EM8801 module may be purchased separately for use in custom configurations. Designed with Marvell’s innovative mixed-signal architecture, the Marvell 88EM8042 IC delivers high power factor, high efficiency, low total harmonic distortion and supports a wide range Universal input voltage. The highly integrated, highly-efficient Marvell 88EM8801 is the industry’s first intelligent LED driver to independently control two strings of LEDs with digital interfaces. VDC1 VAC 90 to 305 LED String 1 88EM8042 AC/DC VDC2 88EM8801 DC/DC LED String 2 0-10V LDO AC/DC Base Board I2C 33.3VDC I2C I2C 88MZ100 88MC100 RF Module DC/DC Module Low Cost MCU DALI PHY 0-10V Dimming Interface DALI Module 0-10V Module Fig 1. Block Diagram AC/DC Base Board OR 0-10V Dimming Module 88EM8801 DC/DC Module Fig 2. Marvell 20Watt 2-Stage, 2-Channel Smart External LED Driver Reference Design ZigBee Module Marvell 20Watt 2-Stage, 2-Channel Smart External LED Driver Reference Design MARVELL 20WATT 2-STAGE, 2-CHANNEL SMART LED EXTERNAL DRIVER SPECIFICATIONS • AC Input Range: Universal 90-305V • 2-Channel Output: 30V (Max) /500mA (Max) per channel, 20W (Max) • Dimension: 2.15 inches x 3.95 inches MARVELL 20WATT 2-STAGE, 2-CHANNEL SMART LED EXTERNAL DRIVER FEATURES • Dimming Features - Dimming to 5% (base configuration) - Dimming to 1% (with addition of control modules) - 0-10V two-wire dimming - DALI, ZigBee • High Efficiency: 87% • High Power Factor: 99% • Low THD: 15% • Drives two strings of LEDs independently • CCT Tunable • Color Management Complete Marvell evaluation kit files available at: www.marvell.com/led-lighting Evaluation kit files include: Marvell Design Files • Schematic • Gerber/Layout files • Bill of materials (BOM) • Transformer specification Test Reports • Dimming Curve • EMI/EMC • Performance data Ordering information The Marvell 20Watt 2-Stage, 2-Channel Smart LED External Driver Reference Design is available from your local Marvell sales team or distributor. PART NUMBERS • RD-2STAGE-ED20W-01 20W, 2-Stage, 2-Channel, Universal Input, Downlight Driver Base Board plus one 8801 Module •RD-88EM8801-EDMOD-01 8801 DC/DC Power Module • RD-0-10V-EDMOD-01 0-10V Dimming Module for External Driver Base Board • RD-88MZ100-CCDALI-01 DALI Network Communication Module • RD-88MZ100-CCZB-01 ZigBee Network Communication Module for External Driver Base Board Note: Available from third-party vendors. No representation or warranties are made concerning third-party patents with regard to the use of Marvell products. The mixing of red LEDs with phosphor-converted LEDs may be protected by certain third-party patents. THE MARVELL ADVANTAGE: Marvell chipsets come with complete reference designs which include board layout designs, software, manufacturing diagnostic tools, documentation, and other items to assist customers with product evaluation and production. Marvell’s worldwide field application engineers collaborate closely with end customers to develop and deliver new leading-edge products for quick time-to-market. Marvell utilizes world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low-cost total solutions. ABOUT MARVELL: Marvell is a leader in storage, communications, and consumer silicon solutions. Marvell’s diverse product portfolio includes switching, transceiver, communications controller, processor, wireless, power management, and storage solutions that power the entire communications infrastructure, including enterprise, metro, home, storage, and digital entertainment solutions. For more information, visit our Web site at www.marvell.com. Marvell Semiconductor, Inc. 5488 Marvell Lane Santa Clara, CA 95054 Phone 408.222.2500 www.marvell.com Copyright © 2013. Marvell International Ltd. All rights reserved. Marvell and the Marvell logo are registered trademarks of Marvell. 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