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TPS65145RGE PDF预览

TPS65145RGE

更新时间： 2024-11-15 22:18:47
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器输出元件
页数 文件大小 规格书
24页 853K
描述
TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD

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TPS65145RGE 技术参数

生命周期：Obsolete零件包装代码：QFN
包装说明：PLASTIC, QFN-24针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.73
Is Samacsys：N其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 5V TO 15V
模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.8 V
最小输入电压：2.7 V标称输入电压：3.3 V
JESD-30 代码：S-PQCC-N24JESD-609代码：e4
长度：4 mm功能数量：1
端子数量：24最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：1.56 A
标称输出电压：3.3 V封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC24,.16SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
电源：3.3 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.9 mA标称供电电压 (Vsup)：3.3 V
表面贴装：YES切换器配置：BOOST
最大切换频率：2100 kHz技术：CMOS
温度等级：INDUSTRIAL端子面层：NICKEL PALLADIUM GOLD
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD宽度：4 mm
Base Number Matches：1

TPS65145RGE 数据手册

 浏览型号TPS65145RGE的Datasheet PDF文件第2页浏览型号TPS65145RGE的Datasheet PDF文件第3页浏览型号TPS65145RGE的Datasheet PDF文件第4页浏览型号TPS65145RGE的Datasheet PDF文件第5页浏览型号TPS65145RGE的Datasheet PDF文件第6页浏览型号TPS65145RGE的Datasheet PDF文件第7页 
TPS65140  
TPS65145  
www.ti.com  
SLVS497B–SEPTEMBER 2003–REVISED MARCH 2004  
TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD  
FEATURES  
DESCRIPTION  
•
•
•
•
2.7-V to 5.8-V Input Voltage Range  
1.6-MHz Fixed Switching Frequency  
3 Independent Adjustable Outputs  
The TPS65140/145 offers a compact and small  
power supply solution to provide all three voltages  
required by thin film transistor (TFT) LCD displays.  
The auxiliary linear regulator controller can be used  
to generate a 3.3-V logic power rail for systems  
powered by a 5-V supply rail only.  
Main Output up to 15 V With <1% Typical  
Output Voltage Accuracy  
•
•
•
•
•
•
•
•
•
Negative Output Voltage Down to -12 V/20 mA  
Positive Output Voltage up to 30 V/20 mA  
Auxiliary 3.3-V Linear Regulator Controller  
Internal Soft Start  
The main output Vo1 is a 1.6-MHz fixed frequency  
PWM boost converter providing the source drive  
voltage for the LCD display. The device is available in  
two versions with different internal switch current  
limits to allow the use of a smaller external inductor  
when lower output power is required. The TPS65140  
has a typical switch current limit of 2.3 A and the  
TPS65145 has a typical switch current limit of 1.37 A.  
Internal Power-On Sequencing  
Fault Detection of all Outputs  
Thermal Shutdown  
A
fully integrated adjustable charge pump  
System Power Good  
doubler/tripler provides the positive LCD gate drive  
voltage. An externally adjustable negative charge  
pump provides the negative gate drive voltage. Due  
to the high 1.6-MHz switching frequency of the  
charge pumps, inexpensive and small 220-nF capaci-  
tors can be used.  
Available in TSSOP-24 and QFN-24  
PowerPAD™ Packages  
APPLICATIONS  
•
•
•
•
•
•
TFT LCD Displays for Notebooks  
TFT LCD Displays for Monitors  
Portable DVD Players  
Tablet PCs  
Car Navigation Systems  
Industrial Displays  
Additionally, the TPS65140/145 has a system power  
good output to indicate when all supply rails are  
acceptable. For LCD panels powered by 5 V, only the  
TPS65140/145 has a linear regulator controller using  
an external transistor to provide a regulated 3.3 V  
output for the digital circuits. For maximum safety, the  
entire device goes into shutdown as soon as one of  
the outputs is out of regulation. The device can be  
enabled again by toggling the input or the enable  
(EN) pin to GND.  
TPS65140/45  
Vo1  
Vin  
Boost  
Up to 15 V / 400 mA  
2.7 V to 5.8 V  
Converter  
Vo3  
Positive Charge  
Pump  
Up to 30 V / 20 mA  
Negative  
Charge Pump  
Vo2  
Up to −12 V / 20 mA  
Power Good  
Power Good  
Vo4  
3.3 V  
Linear Regulator  
Controller  
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2003–2004, Texas Instruments Incorporated  
1234567...24

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