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TPS60251RTWTG4

更新时间： 2024-11-24 20:05:51
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
27页 935K
描述
High Efficiency Charge Pump for 7 WLEDs with I<sup>2</sup>C Interface 24-WQFN -40 to 85

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中文翻译

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TPS60251RTWTG4 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN,针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.82
模拟集成电路 - 其他类型：SWITCHED CAPACITOR CONVERTER最大输入电压：6 V
最小输入电压：3 V标称输入电压：3.5 V
JESD-30 代码：S-PQCC-N24JESD-609代码：e4
长度：4 mm湿度敏感等级：2
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
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
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认证状态：Not Qualified
座面最大高度：0.8 mm表面贴装：YES
最大切换频率：750 kHz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：4 mm
Base Number Matches：1

TPS60251RTWTG4 数据手册

 浏览型号TPS60251RTWTG4的Datasheet PDF文件第2页浏览型号TPS60251RTWTG4的Datasheet PDF文件第3页浏览型号TPS60251RTWTG4的Datasheet PDF文件第4页浏览型号TPS60251RTWTG4的Datasheet PDF文件第5页浏览型号TPS60251RTWTG4的Datasheet PDF文件第6页浏览型号TPS60251RTWTG4的Datasheet PDF文件第7页 
TPS60251  
www.ti.com  
SLVS767C–APRIL 2007–REVISED NOVEMBER 2007  
HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE  
•
•
PDA, PMP, GPS (Up To 4 Inch Display)  
Multidisplay Handheld Devices  
1
FEATURES  
•
3.0-V to 6.0-V Input Voltage Range  
•
•
×1 and ×1.5 Charge Pump  
DESCRIPTION  
Fully Programmable Current with I2C  
The TPS60251 is  
a
high efficiency, constant  
–
64 Dimming Steps with 25mA Maximum  
(Sub and Main Display Banks)  
frequency charge pump DC/DC converter that uses a  
dual mode 1× and 1.5× conversion to maximize  
efficiency over the input voltage range. It drives up to  
five white LEDs for a main display and up to two  
white LEDs for a sub display with regulated constant  
current for uniform intensity. By utilizing adaptive  
1×/1.5× charge pump modes and very low-dropout  
current regulators, the TPS60251 achieves high  
efficiency over the full 1-cell lithium-battery input  
voltage range.  
–
4 Dimming Steps with 80mA Maximum  
(DM5 for Auxiliary Application)  
•
2% Current Matching for Sub LEDs at Light  
Load Condition (Each 100µA)  
•
•
•
750-kHz Charge Pump Frequency  
Continuous 230-mA Maximum Output Current  
Auto Switching Between ×1 and ×1.5 Mode for  
Maximum Efficiency  
Four enable inputs, ENmain, ENsub1, ENsub2, and  
ENaux, available through I2C, are used for simple  
on/off controls for the main, sub1, sub2, and DM5  
displays, respectively. To lower operating current  
when using one sub display LED, the device provides  
independent operation in sub display LEDs.  
•
•
•
•
Built-in Soft Start and Current Limit  
Hardware Enable/Disable  
Open Lamp Detection  
24-Pin 4mm x 4mm QFN  
The TPS60251 is available in a 24-pin 4mmx4mm  
thin QFN.  
APPLICATIONS  
•
Cellular Phones  
Main Display  
95  
90  
85  
80  
75  
GND  
C 1-  
IS DM4 DM3 DM 2 DM1  
NC  
NC-G  
C 2+  
C2  
C3  
1uF 1uF  
C2-  
70  
65  
60  
GND  
GND  
NC  
C 1+  
VOUT  
Auxiliary Port for Key Pad  
or Flash Light  
C4  
4.7uF  
VIN  
VIO  
55  
4 Main LED - 15 mA, V = 3.1 V  
F
SDAT ENA DS1 DS2 DM5  
C 1  
4.7uF  
50  
SCLK  
1.8V for I /O  
Input  
3
3.5  
4
4.5  
5
5.5  
6
I2C Interface  
V - Input Voltage - V  
I
Sub Display  
Figure 1. Typical Application for Sub and Main  
Figure 2. Efficiency vs Input Voltage  
ORDERING INFORMATION(1)  
PART NUMBER  
PACKAGE  
TA  
TPS60251RTW  
24 Pin 4 mm × 4 mm QFN (RTW)  
–40°C to +85°C  
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
web site at www.ti.com.  
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 © 2007, 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.  
1234567...27

中文翻译

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TPS60251RTWTG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS60251RTWRG4 TI

完全替代

 SWITCHED CAPACITOR CONVERTER, 750kHz SWITCHING FREQ-MAX, PQCC24, 4 X 4 MM, GREEN, PLASTIC,
TPS60251RTWT TI

功能相似

 HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE
TPS60251RTWR TI

功能相似

 HIGH EFFICIENCY CHARGE PUMP FOR 7 WLEDs WITH I2C INTERFACE

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