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參數(shù)資料
| 型號： | MP1518 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | Fixed Frequency White LED Driver |
| 中文描述： | 固定頻率白光LED驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 260K |
| 代理商： | MP1518 |
The Future of Analog IC Technology
MP1518
Fixed Frequency
White LED Driver
MP1518 Rev. 1.6
7/25/2006
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
TM
DESCRIPTION
The MP1518 is a step-up converter designed for
driving up to 6 series white LEDs from a single
cell Lithium Ion battery. The MP1518 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 OV pin monitors the
output voltage and turns off the converter if an
over-voltage condition is present due to an open
circuit condition.
The MP1518 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload.
The MP1518 is available in small 6-pin TSOT23
or 8-pin QFN (2mm x 2mm) packages.
Also available is the MP1518DJE, ideal for
applications where low EMI is critical.
EVALUATION BOARD REFERENCES
Board Number
EV0056
EV1518DG-00A
Dimensions
1.9”X x 1.8”Y x 0.4”Z
2.0”X x 1.8”Y x 0.4”Z
FEATURES
On Board Power MOSFET
Drives up to 6 Series White LEDs
Up to 87% Efficiency
Over 1MHz Fixed Switching Frequency
Open Load Shutdown
Low 104mV Feedback Voltage
Soft-Start/PWM Dimming
UVLO, Thermal Shutdown
Internal Current Limit
Available in TSOT23-6 and QFN8 Packages
APPLICATIONS
Cell Phones
Handheld Computers and PDAs
Digital Still Cameras
Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP1518
IN
5V
LED1
LED2
LED3
LED4
LED5
LED6
EN
IN
EN
GND
OV
FB
SW
88
86
84
82
80
78
76
E
5
10
15
20
LED CURRENT (mA)
Efficiency vs
LED Current
6 LEDS
3 LEDS
V
IN
= 3.6V
4 LEDS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MP1518DJE | Fixed Frequency White LED Driver |
| MP1519DQL | 1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver Evaluation Board |
| MP1519DQTL | 1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver |
| MP1519L | 1x, 1.5x, 2x High Efficiency Charge Pump 3 White LED Driver |
| MP1519DQ | 1x, 1.5x, 2x High Efficiency Charge Pump 4 White LED Driver Evaluation Board |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP1518DG | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency White LED Driver |
| MP1518DG-LF-P | 功能描述:LED照明驅(qū)動(dòng)器 6 LED, 2.6 - 6Vin Switch Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| MP1518DG-LF-Z | 功能描述:電源開關(guān) IC - 配電 6 LED, 2.6 - 6Vin Switch Driver RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| MP1518DJ | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency White LED Driver |
| MP1518DJE | 制造商:MPS 制造商全稱:Monolithic Power Systems 功能描述:Fixed Frequency White LED Driver |
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