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TPS65150

更新时间： 2024-11-15 22:40:59
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
28页 1111K
描述
Low Input Voltage, Compact LCD Bias IC With VCOM Buffer

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中文翻译

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TPS65150 数据手册

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A ct u al Siz e  
6, 4 m m x 7 ,8 mm  
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TPS65150  
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www.ti.com  
SLVS576–SEPTEMBER 2005  
Low Input Voltage, Compact LCD Bias IC With VCOM Buffer  
FEATURES  
APPLICATIONS  
•
•
•
TFT LCD Displays for Notebooks  
TFT LCD Display for Monitor  
Car Navigation Display  
•
•
•
•
•
•
1.8-V to 6-V Input Voltage Range  
Integrated VCOM Buffer  
High Voltage Switch to Isolate VGH  
Gate Voltage Shaping of VGH  
2-A Internal MOSFET Switch  
DESCRIPTION  
The TPS65150 offers a very compact and small  
power supply solution that provides all three voltages  
required by thin film transistor (TFT) LCD displays.  
With an input voltage range of 1.8 V to 6.0 V the  
device is ideal for notebooks powered by a 2.5-V or  
3.3-V input rail or monitor applications with a 5-V  
input voltage rail. Additionally the TPS65150 provides  
an integrated high current buffer to provide the  
VCOM voltage for the TFT backplane.  
Main Output Vs up to 15 V With <1% Output  
Voltage Accuracy  
•
•
•
•
•
•
Virtual Synchronous Converter Technology  
Negative Regulated Charge Pump Driver VGL  
Positive Regulated Charge Pump Driver VGH  
Adjustable Power On Sequencing  
Adjustable Fault Detection Timing  
Gate Drive Signal for external isolation  
MOSFET  
Two regulated adjustable charge pump driver provide  
the positive VGH and negative VGL bias voltages for  
the TFT. The device incorporates adjustable power  
on sequencing for VGL as well as for VGH. This  
avoids any additional external components to  
implement application specific sequencing. The  
device has an integrated high voltage switch to  
isolate VGH.  
•
•
•
Thermal Shutdown  
Available in TSSOP-24 Package  
Available in QFN-24 Package  
TYPICAL APPLICATION  
R8  
R7  
500 kW  
500 kW  
1 nF  
C6  
L1  
3.9 mH  
Vin  
5 V  
V
S
D1  
13.5 V/450 mA  
C1  
22 mF  
R1  
C15  
22 pF  
820 kW  
C2  
22 mF  
VGL  
−5 V/20 mA  
D4  
D5  
C7  
0.33 mF  
C14  
IN VIN  
DRVN  
SW SW  
SUP  
D2  
1 mF  
R2  
75 kW  
FBN  
REF  
GND  
FB  
C16  
R3  
620 kW  
C3  
0.33 mF  
DRVP  
D3  
CPI  
FBP  
CPI  
TPS65150  
0.33 mF  
C4  
0.33 mF  
CPI  
PGND  
PGND  
R5  
1 MW  
R4  
150 kW  
VGH  
VCOM  
GD  
CTRL  
R6  
56 kW  
C8  
220 nF  
VGH  
23 V/20 mA  
COMP  
VGH  
Control Signal  
C9  
2.2 nF  
V
COM  
Output  
C13  
100 nF  
C10  
C11  
C12  
C5  
1 mF  
22 pF 10 nF 10 nF  
V
IN  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PowerPad is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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TPS65150 替代型号

型号 品牌 替代类型 描述 数据表
TPS65141 TI

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