EV3388EY-00A
8 string White LED Driver
Evaluation Board
EV3388EY-00A Rev.1.0 www.MonolithicPower.com 1
11/3/2009 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2009 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3388EY-00A is an evaluation board for the
MP3388EY, a step-up converter designed for large
liquid-crystal displays that employ an array of LEDs
as the light source. It can drive up to 8 strings in
parallel and 10 LEDs per string.
The MP3388 uses internal switch current mode,
fixed frequency architecture and includes current
ballast in each string terminal, which achieves
±3% current regulation accuracy between strings.
Low feedback voltage at each LED string help
reduce power loss and improve efficiency.
The MP3388 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
5 – 25 V
LEDs #
8 string parallel and
10 LEDs each string
LED Current I
LED
20/string mA
FEATURES
• 5V to 25V Input Voltage Range
• Up to 89% Efficiency
• Programmable Over Voltage Protection
• Drives up to 8 Strings Parallel and 10 LEDs
in Series.
• 3% Current Regulation Accuracy Between
Strings
• Selectable Switching Frequency: 1.25MHz
and 625kHz
• Open and Short LED Load Protection
• Thermal Shutdown
APPLICATIONS
• Notebook PC
• Small 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.
EV3388EY-00A EVALUATION BOARD
(L x W x H) 6.0cm x 3.2cm x 1.0cm
Board Number MPS IC Number
EV3388EY-00A MP3388EY
