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TPS65121RGTR PDF预览

TPS65121RGTR

更新时间： 2024-11-16 12:16:15
品牌 Logo 应用领域
德州仪器 - TI 输出元件
页数 文件大小 规格书
30页 1418K
描述
SINGLE-INDUCTOR QUADRUPLE-OUTPUT TFT LCD POWER SUPPLY

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TPS65121RGTR 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, LCC16,.12SQ,20针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：1.57
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：2.7 V标称输入电压：3.6 V
JESD-30 代码：S-PQCC-N16JESD-609代码：e4
长度：3 mm湿度敏感等级：2
最大负输入电压：-1.5 V功能数量：1
端子数量：16最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.2 A
标称输出电压：1.8 V封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC16,.12SQ,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：3.6 V
认证状态：Not Qualified座面最大高度：0.9 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.17 mA
标称供电电压 (Vsup)：3.6 V表面贴装：YES
切换器配置：SINGLE最大切换频率：4000 kHz
技术：CMOS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
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

TPS65121RGTR 数据手册

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TPS65120, TPS65121, TPS65123, TPS65124  
www.ti.com  
SLVS531A–JUNE 2004–REVISED MARCH 2005  
SINGLE-INDUCTOR QUADRUPLE-OUTPUT  
TFT LCD POWER SUPPLY  
FEATURES  
•
Automatic or Programmable Power  
Sequencing  
•
Main Output, VMAIN  
•
•
•
•
Complete 1 mm Component Profile Solution  
2.5 V to 5.5 V Input Voltage Range  
Output Short Circuit Protected  
16-Pin QFN Package (3 × 3 × 0,9 mm)  
– Adjustable Voltage, 3.0 V to 5.6 V/25 mA  
– Post-Regulated for Low Ripple (5mVPP  
– ±0.8% Typical Accuracy  
– Efficiency up to 83%  
)
•
•
•
Positive Output, VGH  
APPLICATIONS  
– Adjustable Voltage up to 20 V/2 mA  
– ±3% Typical Accuracy  
•
•
•
•
•
•
•
•
Small Form Factor a-Si and LTPS TFT LCD  
Cell Phones, Smart Phones  
PDAs, Pocket PCs  
Portable DVD  
Digital-Still Cameras, Camcorders  
Handheld Instruments  
Negative Output, VGL  
– Adjustable Voltage down to -18 V/2 mA  
– ±3% Typical Accuracy  
Auxiliary 1.8 V/3.3 V Linear Regulator  
Portable GPS  
Car Navigation Systems  
DESCRIPTION  
The TPS6512x DC-DC converter supplies all three voltages required by amorphous-silicon (a-Si) and  
low-temperature poly-silicon (LTPS) TFT-LCD displays. The compact layout of the TPS6512x uses a single  
inductor to generate independently-regulated positive and negative outputs. A free-running variable peak current  
PWM control scheme time-multiplexes the inductor between outputs. This control architecture operates at a  
pseudo-fixed-frequency to provide fast response to line and load transients while maintaining a relatively  
constant switching frequency and high efficiency over a wide range of input and output voltages. Due to the high  
switching frequency capability of the device, inexpensive and ultra-thin 8.2 or 10 µH inductors can be used.  
The main output, VMAIN, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The  
auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, down to  
-18 V for the LCD gate drive. The device has internal current limiting for high reliability under fault conditions.  
Additionally, the device offers a fixed output linear regulator for the LCD logic circuitry.  
100  
90  
TPS65123  
D1  
80  
70  
60  
VGL  
VIN  
SWN  
VIN  
R3  
R4  
C1  
2.2 µ F  
down to −18 V/2 mA  
2.7 V to 5.5 V  
L1  
10µH  
RUN  
EN  
C3  
100 nF  
SWP  
FBL  
50  
40  
30  
20  
10  
0
GATE  
VGH  
VGH  
VMAIN  
VMAIN  
FBM  
R5  
R6  
up to 20 V/2 mA  
3.0 V to 5.3 V/25 mA  
R1  
R2  
C2  
100 nF  
BOOT  
C5  
FBH  
C4  
1µ F  
220 nF  
PGND  
AGND  
V
IN  
− Input Voltage − V  
A
A
I
− Load Current − mA  
BOOT  
Figure 1. Typical Application  
Figure 2. Core Converter Efficiency  
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 © 2004–2005, 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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TPS65121RGTR 替代型号

型号 品牌 替代类型 描述 数据表
TPS65121RGTTG4 TI

完全替代

 SINGLE-INDUCTOR QUADRUPLE-OUTPUT TFT LCD POWER SUPPLY
TPS65121RGTT TI

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