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PDF EV1519DQL-00A Data sheet ( Hoja de datos )
| Número de pieza | EV1519DQL-00A | |
| Descripción | High Efficiency Charge Pump 3 White LED Driver Evaluation Board | |
| Fabricantes | MPS | |
| Logotipo |  |
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TM
EV1519DQL-00A
1x, 1.5x, 2x High Efficiency Charge Pump
3 White LED Driver Evaluation Board
The Future of Analog IC Technology TM
DESCRIPTION
The EV1519DQL-00A is an evaluation board for
the MP1519, a fully automatic driver for
powering three 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
# of WLEDs
Input Voltage
LED Current
Symbol
VIN
ILED
Value
3
2.5 – 5.5
20
Units
V
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.
EV1519DQL-00A EVALUATION BOARD
Dimensions (2.3”X x 1.8”Y x 0.4”Z)
Board Number
EV1519DQL-00A
MPS IC Number
MP1519DQL
Efficiency vs
Supply Voltage
VLED = 3.23V @ 20mA
100 ILED=5mA
90
ILED=20mA
80
70
60
50 ILED=10mA
40
30
20
10
2.5
3.0 3.5 4.0
SUPPLY VOLTAGE (V)
4.5
MP1519L_EC01
EV1519DQL-00A Rev. 1.1
10/27/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
1
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| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet EV1519DQL-00A.PDF ] | |
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