EV3393-F-00A

Step-Up,8-String, External Transistor

White LED Driver Evaluation Board

EV3393-F-00A Rev. 1.01

www.MonolithicPower.com

1

5/7/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV3393-F-00A is an evaluation board for

the MP3393, a step-up controller with 8-channel

external-transistor current sources.

The MP3393 uses current mode, fixed frequency

architecture. It drives an external MOSFET to

boost up the output voltage from 9V to 32V input

supply. The switching frequency is programmable

by an external setting resistor.

The MP3393 integrates the constant current

control circuit to regulate the current in each LED

string to the value set by an external current

feedback resistor. And the current matching can

achieve 1.2% regulation accuracy between

strings. Its low 202mV regulation voltage on LED

current sources reduces power loss and

improves efficiency.

The EV3393-F-00A is a fully assembled and

tested PCB. It generates a 1.6A (200mA/string,

8 strings) output current at LED load from a 12V

to 30V input range. Switching frequency is set

at 160kHz.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

12 – 30

V

Output Voltage

V

Output Current

200*8

mA

FEATURES

• 9V to 32V Input Voltage Range

• Drive 8 Channels LED strings

• Internal Constant Current Control

• Maximum Channel Current Over 350mA

• 1.2% Current Matching Accuracy Between

Strings

• Programmable Switching Frequency

• Analog Dimming and External PWM

Dimming

• Open and Short LED Protection

• Programmable Over-voltage Protection

• Fault Flag Output

• Thermal Shutdown

• Extendable LED Channels with Share One

Set of Power Stage

• 28-pin TSSOP and 28-pin SOIC Packages

APPLICATIONS

• Desktop LCD Flat Panel Displays

• Flat Panel Video Displays

• LCD TVs and Monitors

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

EV3393-F-00A EVALUATION BOARD

(L x W x H)

(13.1cm x 8.7cm x 1.0cm)

Board Number

MPS IC Number

EV3393-F-00A

MP3393EF

0.80

0.82

0.84

0.86

0.88

0.90

0.92

0.94

0.96

0.98

1.00

10

15

20

25

30