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

8 – 28

V

LEDs #

24 strings parallel

&12 LEDs/string

LED Current

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