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EV3011DQ-00A Datasheet(PDF) 1 Page - Monolithic Power Systems

Part No. EV3011DQ-00A
Description  1x, 1.5x, 2x High Efficiency Charge Pump 2 White LED Driver Evaluation Board
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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EV3011DQ-00A Datasheet(HTML) 1 Page - Monolithic Power Systems

   
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EV3011DQ-00A
1x, 1.5x, 2x High Efficiency Charge Pump
2 White LED Driver Evaluation Board
EV3011DQ-00A Rev. 1.1
www.MonolithicPower.com
1
10/27/2005
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
DESCRIPTION
The EV3011DQ-00A is an evaluation board for
the MP3011, a fully automatic driver for
powering two white LEDs, with up to 4V forward
voltage, from a single Li-Ion or three NiMH
cells. The driver performs all of the sensing and
control to run the LEDs at an optimum charge
pump ratio for efficiency without an expensive
inductor. The driver allows PWM operation to
support brightness control.
The tiny 3mm x 3mm QFN16 package and
small external capacitors allow for the most
compact white LED solution available.
ELECTRICAL SPECIFICATIONS
Parameter
Symbol
Value
Units
# of WLEDs
2
Input Voltage
VIN
2.5 – 5.5
V
LED Current
ILED
40
mA
FEATURES
• 2% LED Current Matching
• High Efficiency (>93%)
• Current Source Outputs
• No Ballast Resistors Required
• 1x, 1.5x and 2x Automatic Modes
• Constant Frequency Operation
• Automatic LED Detection
• High and Low Frequency PWM Capability
• 2.5V to 5.5V Operation
• Less than 1µA Leakage during Shutdown
• Detects Changes in Battery Level
• No External Schottky Diode Required
• Soft-Start and Soft Switching Operation
APPLICATIONS
• Cell Phones
• PDA or Hand Held Computers
• White LED Application at 3.6V Supply
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV3011DQ-00A EVALUATION BOARD
(L x W x H) 2.4” x 1.9” x 0.4”
(6.1cm x 4.8cm x 1.0cm)
Board Number
MPS IC Number
EV3011DQ-00A
MP3011DQ
100
90
80
70
60
50
40
30
20
10
0
2.5
3.0
3.5
4.0
4.5
SUPPLY VOLTAGE (V)
MP3011_EC01
Efficiency vs
Supply Voltage
VLED = 3.35V @ 40mA
ILED=40mA
ILED=20mA
ILED=10mA


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