EV3202-00A
1.3A Fixed Frequency White LED Driver
Evaluation Board
EV3202-00A Rev. 1.1 www.MonolithicPower.com 1
10/18/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV3202-00A is an evaluation board for the
MP3202, a step-up converter designed for driving
up to 39 white LEDs (13 strings of 3 LEDs each)
from a 5V system rail, or 27 white LEDs from
4.5V to 6V.
The MP3202 uses current mode, fixed frequency
architecture to regulate the LED current, which is
measured through an external current sense
resistor. Its low 104mV feedback voltage reduces
power loss and improves efficiency. The OV pin
monitors the output voltage and turns off the
converter if an over-voltage condition is present
due to an open circuit condition.
The MP3202 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload.
ELECTRICAL SPECIFICATIONS
Parameter Symbol Value Units
Input Voltage V
IN
4.5 – 6 V
Number of LEDs 27
FEATURES
• 4.5V to 6V Input Voltage Range
• Drives up to 27 White LEDs
• Up to 92% Efficiency
• Soft-Start/PWM Dimming
• Fully Assembled and Tested
APPLICATIONS
• Cell Phones
• Handheld Computers and PDAs
• Digital Still Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
EV3202-00A EVALUATION BOARD
(L x W x H) 3.1” x 1.4” x 0.5”
7.8cm x 3.5cm x 1.2cm
Board Number MPS IC Number
EV3202-00A MP3202DG
100
95
90
85
80
EFFICIENCY (%)
4.5 4.7 4.9 5.1 5.3 5.5
INPUT VOLTAGE (V)
Efficiency vs
Input Voltage
I
OUT
=100mA
I
OUT
=180mA
