EV3399EY-00A
24 strings White LED Driver
Evaluation Board
EV3399EY-00A Rev.1.0 www.MonolithicPower.com 1
9/23/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3399EY-00A is an evaluation board for the
MP3399EY, a 12 LED channels step-up converter
designed for large liquid-crystal displays that employ
an array of LEDs as the light source. The board
builds with two MP3399EY in parallel to drive 24
strings LEDs with 60mA maximum current.
The MP3399 uses external power mosfet and
internal current mode, fixed frequency
architecture and includes current ballast in each
string terminal, which achieves 2.5% current
regulation accuracy between strings. Low
feedback voltage at each LED string help reduce
power loss and improve efficiency.
The MP3399 has multiple features to protect the
converter from fault conditions, including under-
voltage lockout, current limiting, over voltage,
short LED, open LED and thermal shut-down
protection.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
8 – 28 V
LEDs #
24 strings parallel
&12 LEDs/string
LED Current I
LED
20/string mA
FEATURES
• 8V to 28V Input Voltage Range
• External Power MOSFET
• Up to 90% Efficiency
• Programmable Over Voltage Protection
• Drives up to 24 Strings Parallel 2.5%
Current Regulation Accuracy Between Strings
• Programmable Switching Frequency:
• PWM Dimming
• Open and Short LED Load Protection
• Thermal Shutdown
APPLICATIONS
• Notebook PC
• LCD Monitor
• LCD TV
• Handy Terminals Display
• Automotive Systems and Tablet Computer
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
EV3399EY-00A EVALUATION BOARD
(L x W x H) 7.8cm x 4.7cm x 1.0cm
Board Number MPS IC Number
EV3399EY-00A MP3399EY