TM
EV3205DJ-00A
1.3MHz Fixed Frequency
5 White LED Driver
EVALUATION BOARD
The Future of Analog IC Technology
TM
GENERAL DESCRIPTION
The MP3205 is a step-up converter designed
for driving up to 5 series white LEDs from a
single cell Lithium Ion battery. The MP3205
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 MP3205 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload. The MP3205 is available in a small
5-pin TSOT23 package.
FEATURES
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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
Cell Phones
Handheld Computers and PDAs
Digital Still Cameras
Small LCD Displays Application
APPLICATIONS
ELECTRICAL SPECIFICATION
Parameter
Input Voltage
Number of WLEDs
Symbol
V
IN
Value
2.5 to 6
5
Units
V
鈥淢PS鈥?and 鈥淭he Future of Analog IC Technology鈥?are Trademarks of
Monolithic Power Systems, Inc.
EV3205DJ-00A EVALUATION BOARD
Efficiency vs
LED Current
88
87
86
85
84
83
82
81
80
79
78
77
4 LEDs
EFFICIENCY (%)
5 LEDs
3 LEDs
V
IN
=3.6V
5
10
15
LED CURRENT (mA)
20
MP3205-EC01
Dimensions (1.9鈥漍 x 1.8鈥漎 x 0.4鈥漐)
Board Number
EV3205DJ-00A
EV3205DJ-00A Rev. 1.1
7/13/2005
MPS IC Number
MP3205DJ
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
漏 2005 MPS. All Rights Reserved.
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英文版
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英文版
Monolithic Power Systems [1.3MHz Fixed Frequency 5 White LE...
MPS
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Monolithic Power Systems [1.3MHz Fixed Frequency 5 White LE...
MPS
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Monolithic Power Systems [700KHz/1.3MHz Boost Converter wit...
MPS
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Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 16 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 16 Channel, 12-Bit Data Acquisition Subsyste...
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Monolithic Power Systems [Fixed Frequency White LED Driver]
MPS
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英文版
Monolithic Power Systems [1.3MHz Fixed Frequency 5 White LE...
MPS
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英文版
Monolithic Power Systems [700KHz/1.3MHz Boost Converter wit...
MPS
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英文版
Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
EXAR [Exar...
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英文版
Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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Fault Protected 32 Channel, 12-Bit Data Acquisition Subsyste...
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