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參數(shù)資料
| 型號： | MP1519 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | 1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver |
| 中文描述： | 1倍，1.5倍，2倍高效充電泵4白光LED驅(qū)動器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 216K |
| 代理商： | MP1519 |
The Future of Analog IC Technology
MP1519
1x, 1.5x, 2x High Efficiency Charge Pump
4 White LED Driver
MP1519 Rev. 1.9
7/27/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TM
DESCRIPTION
The MP1519 is a fully automatic driver for
powering four 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.
EVALUATION BOARD REFERENCE
Board Number
EV0042
Dimensions
2.4”X x 1.9”Y x 0.4”Z
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 1
μ
A 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.
TYPICAL APPLICATION
MP1519
C1A
C1B
C2A
C2B
LED1
LED2
LED3
LED4
BATT
EN
RADJ
GND
LEDC
GND
ENABLE
BATT
LED4
LED3
LED2
LED1
4
7
6
9
14
15
16
5, 13
12
11
3, 10
8
1
100
90
80
70
60
50
40
30
20
10
0
E
2.5
3.0
SUPPLY VOLTAGE (V)
3.5
4.0
4.5
Efficiency vs
Supply Voltage
V
LED
= 3.35V @ 20mA
I
LED
=20mA
I
LED
=10mA
I
LED
=5mA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP1519DQ | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver |
| MP1519DQL | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver |
| MP1519DQ-LF-P | 功能描述:電荷泵 4 LED, 2.5 - 5.5Vin Charge pump driver RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MP1519DQ-LF-Z | 功能描述:電荷泵 4 LED, 2.5 - 5.5Vin Charge pump driver RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MP1519DQTL | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver |
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