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TPS65148RHBR

更新时间： 2024-11-16 07:04:51
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德州仪器 - TI 调节器监控
页数 文件大小 规格书
30页 1185K
描述
Compact TFT LCD Bias IC for Monitor with VCOM Buffer, Voltage Regulator for Gamma Buffer and Reset Function

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TPS65148RHBR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN, LCC32,.2SQ,20针数：32
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：1.76可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQCC-N32
JESD-609代码：e4长度：5 mm
湿度敏感等级：2信道数量：1
功能数量：1端子数量：32
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：HVQCCN
封装等效代码：LCC32,.2SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：5 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)：0.5 mA最大供电电压 (Vsup)：6 V
最小供电电压 (Vsup)：2.5 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
阈值电压标称：1.24处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：5 mm

TPS65148RHBR 数据手册

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TPS65148  
www.ti.com ........................................................................................................................................................................................................ SLVS904–MAY 2009  
Compact TFT LCD Bias IC for Monitor with VCOM Buffer, Voltage Regulator for Gamma  
Buffer and Reset Function  
1
FEATURES  
•
•
•
•
•
•
Reset Function (XAO Signal)  
LCD Discharge Function  
Overvoltage Protection  
Overcurrent Protection  
Thermal Shutdown  
•
2.5V to 6.0V Input Voltage Range  
•
Up to 18V Boost Converter With 4A Switch  
Current  
•
630kHz/1.2MHz Selectable Switching  
Frequency  
32-Pin 5*5mm QFN Package  
•
•
Adjustable Soft-Start for the Boost Converter  
Gate Driver for External Input-to-Output  
Isolation Switch  
APPLICATIONS  
•
Monitor  
•
0.5% Accuracy Voltage Regulator for Gamma  
Buffer  
•
TV (5V Input Voltage)  
•
•
Gate Voltage Shaping  
VCOM Buffer  
DESCRIPTION  
The TPS65148 offers a very compact power supply solution designed to supply the LCD bias voltages required  
by TFT (Thin Film Transistor) LCD panels running from a typical 5 V supply rail. The device integrates a high  
power step-up converter for VS (Source Driver voltage), a very accurate voltage rail using an integrated LDO to  
supply the Gamma Buffer (VREG_O) and a Vcom buffer driving the LCD backplane. In addition to that, a gate  
voltage shaping block is integrated. The VGH signal (Gate Driver High voltage) supplied by an external positive  
charge pump, is modulated into VGHM with high flexibility by using a logic input VFLK and an external discharge  
resistor connected to RE pin. Also, an external negative charge pump can be set using the boost converter of the  
TPS65148 to generate VGL (Gate Driver Low voltage). The integrated reset function together with the LCD  
discharge function available in the TPS65148 provide the signals enabling the discharge of the LCD TFT pixels  
when powering-off. The device includes safety features like overcurrent protection (OCP) and short-circuit  
protection (SCP) achieved by an external input-to-output isolation switch, as well as overvoltage protection (OVP)  
and thermal shutdown.  
Space between text and graphic  
VIN  
5V  
Boost Converter  
-
(Over Voltage Protection)  
VS  
13.6 V/500 mA  
-
(High Voltage Stress)  
Gate Driver for Input-to-output  
GD  
Isolation Switch  
Gate Voltage  
Shaping  
VGHM  
24 V/20mA  
&
LCD Discharge  
Voltage Regulator for  
Gamma  
VREG_O  
12.5 V/30 mA  
VCOM Buffer  
(unity gain)  
VOPO  
130mA  
XAO  
Reset Function  
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 © 2009, Texas Instruments Incorporated  
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TPS65148RHBR 替代型号

型号 品牌 替代类型 描述 数据表
TPS65148RHBT TI

完全替代

 Compact TFT LCD Bias IC for Monitor with VCOM Buffer, Voltage Regulator for Gamma Buffer a

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