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 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 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 V
IN
12 – 30 V
Output Voltage V
OUT
>V
IN
V
Output Current I
OUT
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 Monolithi
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
EFFICIENCY
V
IN
(V)
Efficiency vs. V
IN
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