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參數(shù)資料
| 型號： | MP1529 |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | Fixed Frequency Step-Up Converter LCD Backlight Plus Flash |
| 中文描述： | 固定頻率升壓轉(zhuǎn)換器液晶背光加閃光 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 312K |
| 代理商： | MP1529 |
The Future of Analog IC Technology
MP1529
Fixed Frequency Step-Up Converter
LCD Backlight Plus Flash
MP1529 Rev. 1.0
11/23/2005
www.MonolithicPower.com
1
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2005 MPS. All Rights Reserved.
TM
TM
DESCRIPTION
The MP1529 is a step-up converter plus 3
current sources for driving two 6-LED backlight
strings to 30mA and a 4-LED flash string to
150mA from a single Lithium-Ion battery.
The step-up converter generates an output
voltage as high as 25V from a 2.7V to 5.5V
input source. Three current sources drive in
three modes. In backlight mode two strings of 6
LEDs are lit with up to 30mA of current. In the
backlight plus preview mode the 4 flash LEDs
are lit with the preview current. In flash mode
the flash LEDs are lit with up to 150mA of
current and the two backlight strings are turned
off. There are three pins to independently set
the backlight, preview and flash current.
The MP1529 includes built-in open lamp over
voltage protection, cycle-by-cycle current limit,
over temperature shutdown, input under voltage
control and integrated soft-start.
The MP1529 is available in a tiny 16-pin 4mm x 4mm
package.
FEATURES
2.7V to 5.5V Input Voltage Range
25V Maximum Step-Up Voltage
<1μA Shutdown Mode
1.2MHz Fixed Frequency Operation
LCD Backlight to 30mA, Flash to 150mA
Cycle-By-Cycle Current Limit
Independent Backlight, Preview and Flash
Current Adjustment
Special PWM Dimming
Over Voltage Protection
Under Voltage Lockout
Integrated Soft-Start
Thermal Shutdown
Tiny 4mm x 4mm QFN Package
APPLICATIONS
PDAs
Cellular Phones
Digital Still Cameras
Digital Video Cameras
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP1529_TAC_S01
MP1529
IN
SW
OUT
COMP
SS
ISET1
ISET2
ISET3
GND
LED1
LED2
LED3
PGND
14
12
8
7
5
13, 15
EN1
EN2
16
3
4
9
10
11
6
1
2
D1
V
IN
EN1
EN2
C4
10nF
GND
V
OUT
82
80
78
76
74
72
E
2
4
6
LED CURRENT (mA)
8 10 12 14 16 18 20
MP1529_EC01
Efficiency vs LED Current
(Backlight Mode, 2 Strings of 3 LEDs)
V
IN
=4.2V
V
IN
=3.6V
V
IN
=2.7V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MP1529DR | 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 |
| MP1529DR-LF-P | 功能描述:LED照明驅(qū)動器 2x6 backlight 1x4 flash WLED 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MP1529DR-LF-Z | 功能描述:LED照明驅(qū)動器 2x6 backlight 1x4 flash WLED 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| MP152-BP | 制造商:Micro Commercial Components (MCC) 功能描述:Diode Rectifier Bridge Single 200V 15A 4-Pin MP-50 Bulk |
| MP152W | 功能描述:橋式整流器 15A 200V LP RoHS:否 制造商:Vishay 產(chǎn)品:Single Phase Bridge 峰值反向電壓:1000 V 最大 RMS 反向電壓: 正向連續(xù)電流:4.5 A 最大浪涌電流:450 A 正向電壓下降:1 V 最大反向漏泄電流:10 uA 功率耗散: 最大工作溫度:+ 150 C 長度:30.3 mm 寬度:4.1 mm 高度:20.3 mm 安裝風格:Through Hole 封裝 / 箱體:SIP-4 封裝:Tube |
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