EV3304DD-00A

1.3A Fixed Frequency White LED Driver

Evaluation Board

EV3304DD-00A Rev. 1.0

www.MonolithicPower.com

1

6/14/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV3304DD-00A is an evaluation board for the

MP3304CDD, a monolithic step-up converter

designed for driving arrays of WLEDs from 5V input

or a single cell Lithium Ion battery. The EV board is

optimized for the load of 3 white LEDs in series, 10

strings panel.

The MP3304 uses current mode, fixed frequency

architecture to regulate the LED current, which is

measured through an external current sense

resistor. Its low 200mV feedback voltage reduces

power loss and improves efficiency.

The MP3304 features up to 50kHz true PWM

dimming, which allows the flexible control of the

backlighting luminance under wide range of the

ambient brightness, and also avoids

the

possibility of PWM dimming audible noise.

The MP3304 is turned off if an over-voltage

condition is present due to an open circuit

condition. MP3304 also includes under-voltage

lockout, current limiting and thermal overload

protection preventing damage in the event of an

output overload.

The MP3304 is available in small 8-pin QFN

(2mm x 3mm) package.

FEATURES

 5V Input Voltage Range

 Drives up to 30 White LEDs

 Up to 88% Efficiency

 Open Load Shutdown

 Fully Assembled and Tested

APPLICATIONS

 Cell Phones

 Handheld Computers and PDAs

 Digital Still Cameras

 Small LCD Displays

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

5

V

# of WLEDs

30(3 in series, 10

strings paralleled)

LED Current

200

mA

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

EV3304DD-00A EVALUATION BOARD

(L x W x H) 1.8” x 1.8” x 0.4”

4.6cm x 4.6cm x 1.0cm

Board Number

MPS IC Number

EV3304DD-00A

MP3304CDD

50

60

70

80

90

100

3 3.5

4 4.5

5 5.5

6 6.5