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TPS65642 PDF预览

TPS65642

更新时间: 2024-02-26 10:16:46
品牌 Logo 应用领域
德州仪器 - TI 显示器电脑PC
页数 文件大小 规格书
70页 3948K
描述
LCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs and Monitors

TPS65642 数据手册

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TPS65642  
www.ti.com  
SLVSBX6 JULY 2013  
LCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs and Monitors  
Check for Samples: TPS65642  
1 Introduction  
1.1 Features  
1
• 2.6 V to 6 V Input Voltage Range  
• Synchronous Boost Converter (AVDD  
• Panel Discharge Signal (XAO)  
• System Reset Signal (RST)  
)
• Non-Synchronous Boost Converter with  
Temperature Compensation (VGH  
• Synchronous Buck Converter (VCORE  
• Synchronous Buck Converter (VIO1  
• Low Dropout Linear Regulator (VIO2  
• 14-Channel, 10-Bit Programmable Gamma  
Voltage Correction  
• On-Chip EEPROM with Write Protect  
• I2C™ Interface  
)
)
)
)
• Thermal Shutdown  
• Programmable VCOM Calibrator with Two  
Integrated Buffer Amplifiers  
• Gate Voltage Shaping  
• Supports GIP and Non-GIP Displays  
• 56-Ball, 3.16 mm x 3.45 mm 0.4 mm Pitch  
DSBGA  
1.2 Applications  
Notebook PCs  
Tablet PCs  
Monitors  
1.3 Description  
The TPS65642 is a compact LCD bias solution primarily intended for use in Notebook and Tablet PCs.  
The device comprises two boost converters to supply the LCD panel's source driver and gate driver/level  
shifter; two buck converters and an LDO linear regulator to supply the system's logic voltages; a  
programmable VCOM generator with two high-speed amplifiers; 14-channel gamma voltage correction; and  
a gate voltage shaping function.  
VIN  
Boost Converter 1  
Buck Converter 1  
Buck Converter 2  
LDO Regulator  
AVDD  
VCORE  
VIO1  
VIO1  
VIO2  
AVDD  
VGH  
Boost Converter 2  
Reset Generator  
RST  
XAO  
VGH  
Gate Voltage Shaping  
VGHM  
VGAM  
VCOM  
Programmable  
Gamma Voltages  
14  
2
Programmable  
VCOM + Buffers  
I2C  
I2C Interface  
1
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.  
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 © 2013, Texas Instruments Incorporated  

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