EV3310EQ-00A

1.3A Step-up White LED Driver

Evaluation Board

EV3310EQ-00A Rev. 1.0

www.MonolithicPower.com

1

1/6/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV3310EQ-00A is an evaluation board for the

MP3310,

a

monolithic

step-up

converter

designed for driving arrays of WLEDs from a

wide input supply range. The EV board is

optimized for the load of 10 white LEDs in

series, 4 strings panel.

The

MP3310

uses

current

mode,

fixed

frequency architecture to regulate the LED

current to user programmed value set by an

external current setting resistor. The switching

frequency is also programmable with an

external resistor.

The MP3310 features true PWM dimming,

which allows the flexible control of the

backlighting luminance under wide range of the

ambient brightness.

The MP3310 is turned off if an over-voltage

condition is present due to an open circuit

condition. Use one external resistor voltage

divider to program OVP threshold. And it also

includes under-voltage lockout, current limiting

and thermal overload protection preventing

damage in the event of an output overload.

The MP3310 is available in small 10-pin QFN

3x3mm package.

FEATURES

• Wide 5V to 25V Operating Input Range

• Drives up to 12 Series White LEDs

• Up to 93% Efficiency

• True PWM Dimming

• Adjustable Switching Frequency

• Adjustable Open Load Shutdown Voltage

• Fully Assembled and Tested

APPLICATIONS

• LCD Panels

• Digital Picture Frames

• Handheld Computers and PDAs

• Digital Still Cameras

• Small LCD Displays

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

5~25

V

# of WLEDs

40(10 in series, 4

strings paralleled)

LED Current

80

mA

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

Monolithic Power Systems, Inc.

EV3310EQ-00A EVALUATION BOARD

(L x W x H) 2.0” x 1.8” x 0.4”

5.0cm x 4.6cm x 1.0cm

Board Number

MPS IC Number

EV3310EQ-00A

MP3310EQ

VIN vs. Efficiency

70

75

80

85

90

95

100

4

8

12

16

20

24