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參數(shù)資料
| 型號： | EV1519DQL-00A |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver Evaluation Board |
| 中文描述： | 1倍，1.5倍，2倍高效充電泵3白色LED驅(qū)動器評估板 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 182K |
| 代理商： | EV1519DQL-00A |
The Future of Analog IC Technology
EV1519DQL-00A
1x, 1.5x, 2x High Efficiency Charge Pump
3 White LED Driver Evaluation Board
EV1519DQL-00A Rev. 1.1
10/27/2005
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2005 MPS. All Rights Reserved.
TM
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
Symbol
# of WLEDs
Input Voltage
V
IN
LED Current
I
LED
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
100
90
80
70
60
50
40
30
20
10
E
2.5
3.0
SUPPLY VOLTAGE (V)
3.5
4.0
4.5
MP1519L_EC01
I
LED
=20mA
I
LED
=10mA
I
LED
=5mA
Efficiency vs
Supply Voltage
V
LED
= 3.23V @ 20mA
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相關(guān)代理商/技術(shù)參數(shù) |
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| EV1529DR-00A | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency Step-Up Converter LCD Backlight Plus Flash Evaluation Board |
| EV1531DQ-002A | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Low Power, Triple Output Step-Up Plus Charge Pump for TFT Bias |
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