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GRM32ER61E226KE15

更新时间： 2024-11-23 11:58:23
品牌 Logo 应用领域
德州仪器 - TI 转换器电平转换器
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43页 1352K
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LCD Bias Supply With Integrated Level Shifters

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GRM32ER61E226KE15 数据手册

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TPS65163  
www.ti.com  
SLVSA28 –OCTOBER 2009  
LCD Bias Supply With Integrated Level Shifters  
Check for Samples :TPS65163  
In typical display panel applications, the boost  
converter generates the display panel source voltage,  
VS; the buck converter generates the system logic  
supply, VLOGIC; and the two charge pump controllers  
regulate the external charge pumps generating the  
1
FEATURES  
•
•
•
•
8.6-V to 14.7-V Input Voltage Range  
2.8-A Boost Converter Switch Current Limit  
Boost Converter Output Voltages up to 18.5 V  
display transistors’ on and off supplies, VGH and VGL  
.
Boost and Buck Converter Short-Circuit  
Protection  
The level shifters transform the logic-level control  
signals generated by the display timing controller into  
the high-level signals needed by the LCD panel. The  
nine level-shifter channels are organized in two  
groups, each with its own positive supply voltage  
(VGH). Each channel uses a low-impedance output  
stage to achieve fast rise and fall times, even when  
driving the capacitive loads present in LCD  
applications. Channels 1 to 6 also support gate  
voltage shaping.  
•
•
•
•
•
•
1.5-A Buck Converter (3.3 V) Switch Current  
Limit  
Fixed 750-kHz Switching Frequency for Buck  
and Boost Converters  
Buck Converter and Boost Converter  
Soft-Start  
Two Charge-Pump Controllers to Regulate VGH  
and VGL  
The TPS65163 also provides a reset circuit that  
monitors the buck converter output (VLOGIC) and  
generates a reset signal for the timing controller  
during power up and power down.  
Control Signal for External High-Side MOSFET  
Isolation Switch  
9-Channel Level Shifter Organized in Two  
Groups of 7 and 2 Channels (Separate VGH  
)
A control signal can also be generated to control an  
external MOSFET isolation switch located between  
the output of the boost converter and the display  
panel.  
•
•
•
•
•
Gate Shaping (Level Shifter Channels 1 to 6)  
Display Panel Discharge Function  
Supports VGH Voltages up to 38 V  
Supports VGL Voltages Down to –13 V  
Isolation Switch  
Control  
GD  
Reset Signal With Programmable Reset-Pulse  
Duration  
Boost  
Converter  
•
•
Thermal Shutdown  
VS  
48-Pin 7-mm × 7-mm QFN Package  
Buck  
Converter  
VLOGIC  
APPLICATIONS  
•
LCD TVs and Monitors Using GIP Technology  
Positive Charge  
VGH  
Pump Controller  
DESCRIPTION  
Negative Charge  
VGL  
Pump Controller  
The TPS65163 integrates a boost converter, buck  
converter, reset generator, two charge pump  
controllers and a nine-channel level shifter in a single  
device.  
Reset  
Generator  
RST  
IN1 to IN9  
OUT1 to OUT9  
DISCH  
Level Shifters  
FLK1 to FLK3  
Panel Discharge  
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.  
Copyright © 2009, 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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