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ADM8830ARU-REEL7 PDF预览

ADM8830ARU-REEL7

更新时间: 2024-01-03 16:03:08
品牌 Logo 应用领域
亚德诺 - ADI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
8页 970K
描述
Charge Pump Regulator for Color TFT Panel

ADM8830ARU-REEL7 技术参数

Source Url Status Check Date:2013-05-01 14:56:43.863是否无铅: 含铅
是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:TSSOP包装说明:MO-153AC, TSSOP-20
针数:20Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.75模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR
最大输入电压:3.6 V最小输入电压:2.6 V
标称输入电压:3 VJESD-30 代码:R-PDSO-G20
JESD-609代码:e0长度:6.5 mm
湿度敏感等级:1功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP20,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):240电源:3/3.3 V
认证状态:Not Qualified座面最大高度:1.2 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.4 mA
表面贴装:YES切换器配置:TRIPLER
最大切换频率:140 kHz技术:CMOS
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:4.4 mmBase Number Matches:1

ADM8830ARU-REEL7 数据手册

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Charge Pump Regulator  
for Color TFT Panel  
ADM8830  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
3 OutputVoltages (+5.1V, +15.3V, 10.2V) from  
One 3V Input Supply  
Power Efficiency Optimized for Use withTFT in  
Mobile Phones  
C5  
2.2F  
V
CC  
C1+  
VOLTAGE  
DOUBLER  
C1  
2.2F  
Low Quiescent Current  
Low Shutdown Current (<1 A)  
FastTransient Response  
C1–  
ADM8830  
VOUT  
LDO IN  
OSCILLATOR  
CLKIN  
C6  
2.2F  
Shutdown Function  
LDO  
VOLTAGE  
Power Saving during Blanking Period  
Option to Use External LDO  
REGULATOR  
SCAN/BLANK  
LDO_ON/OFF  
+5VOUT  
+5VIN  
CONTROL  
LOGIC  
+5.1V  
C7  
2.2F  
APPLICATIONS  
C2+  
DOUBLE  
TRIPLE  
C2  
Handheld Instruments  
TFT LCD Panels  
Cellular Phones  
C2–  
C3+  
C3–  
1F  
TIMING  
GENERATOR  
C3  
1F  
+15VOUT  
+15.3V  
C8  
1F  
VOLTAGE  
TRIPLER  
C4+  
C4  
VOLTAGE  
INVERTER  
C4–  
1F  
SHUTDOWN  
CONTROL  
DISCHARGE  
SHDN  
–10VOUT  
GENERAL DESCRIPTION  
–10.2V  
C9  
The ADM8830 is a charge pump regulator used for color thin  
film transistor (TFT) liquid crystal displays (LCDs). Using  
charge pump technology, the device can be used to generate three  
output voltages (+5.1V ± 2%, +15.3V, 10.2V) from a single  
3V input supply.These outputs are then used to provide  
supplies for the LCD controller (5.1V) and the gate drives for  
the transistors in the panel (+15.3V and –10.2V). Only a few  
external capacitors are needed for the charge pumps. An efficient  
low dropout voltage regulator also ensures that the power  
efficiency is high and provides a low ripple 5.1V output.This  
LDO can be shut down and an external LDO used to regulate  
the 5V doubler output and drive the input to the charge pump  
section, which generates the +15.3V and –10.2V outputs if so  
required by the user.  
GND  
1F  
seamlessly maintained when switching from scanning mode to  
blanking mode or vice versa.  
The ADM8830 has a number of power saving features, including  
low power shutdown and reduced quiescent current consumption  
during the blanking periods mentioned above.The 5.1V output  
consumes the most power, so power efficiency is also maximized  
on this output with an oscillator enabling scheme (Green Idle™).  
This effectively senses the load current that is flowing and turns  
on the charge pump only when charge needs to be delivered to  
the 5V pump doubler output.  
The ADM8830 has an internal 100 kHz oscillator for use in  
scanning mode, but the part must be clocked by an external clock  
source in blanking (low current) mode.The internal oscillator is  
used to clock the charge pumps during scanning mode where the  
current is highest. During blanking periods, the ADM8830  
switches to use an external, lower frequency clock.This allows the  
user to vary the frequency and maximize power efficiency during  
blanking periods.The tolerances on the output voltages are  
The ADM8830 is fabricated using CMOS technology for minimal  
power consumption.The part is packaged in 20-lead LFCSP  
andTSSOP packages.  
REV.B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed byAnalog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
that may result from its use. No license is granted by implication or oth-  
erwise under any patent or patent rights of Analog Devices.Trademarks  
and registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  

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