EV3204DJ-00A View Datasheet(PDF) - Unspecified
Part Name
Description
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EV3204DJ-00A Datasheet PDF : 8 Pages
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TM
MP3204
1.3MHz Fixed Frequency
5 White LED Driver with Open LED Protection
The Future of Analog IC Technology TM
DESCRIPTION
The MP3204 is a step-up converter designed
for driving up to 5 series white LEDs from a
single cell Lithium Ion battery. The MP3204
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 MP3204 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload. The MP3204 is available in a small
6-pin TSOT23 package.
EVALUATION BOARD REFERENCE
Board Number
EV3204DJ-00A
Dimensions
1.9”X x 1.8”Y x 0.4”Z
FEATURES
• On Board Power MOSFET
• Drives up to 5 Series White LEDs
• Up to 87% Efficiency
• Over 1MHz Fixed Switching Frequency
• Low 104mV Feedback Voltage
• Soft-Start/PWM Dimming
• UVLO, Thermal Shutdown
• Internal Current Limit
• Open Load Shutdown
• Available in a TSOT23-6 Package
APPLICATIONS
• Cell Phones
• Handheld Computers and PDAs
• Digital Still Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
VIN
5V
6
1
EN
4 IN
EN
SW 5
OV
2
MP3204
3
GND
FB
LED1
LED2
LED3
LED4
LED5
MP3204-TAC-S01
Efficiency vs
LED Current
88
87
4 LEDs
86
85
84
83
5 LEDs
82
81
80
3 LEDs
79
78
VIN=3.6V
77
5
10
15
20
LED CURRENT (mA)
MP3204-EC01
MP3204 Rev. 1.3
www.MonolithicPower.com
1
9/23/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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