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UCC39411PW PDF预览

UCC39411PW

更新时间： 2024-09-20 11:08:07
品牌 Logo 应用领域
德州仪器 - TI 升压转换器开关控制器开关式稳压器开关式控制器光电二极管电源电路开关式稳压器或控制器
页数 文件大小 规格书
8页 146K
描述
1.125V 阈值低功耗同步升压转换器 | PW | 8 | 0 to 70

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中文翻译

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UCC39411PW 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：SOIC
包装说明：TSSOP-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.61Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：3.2 V最小输入电压：1.1 V
标称输入电压：1.25 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.4 mm
湿度敏感等级：2功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：最大输出电流：0.715 A
最大输出电压：5 V最小输出电压：2 V
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装等效代码：TSSOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.2 mm
子类别：Switching Regulator or Controllers标称供电电压 (Vsup)：2.5 V
表面贴装：YES切换器配置：BOOST
最大切换频率：500 kHz技术：CMOS
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

UCC39411PW 数据手册

 浏览型号UCC39411PW的Datasheet PDF文件第2页浏览型号UCC39411PW的Datasheet PDF文件第3页浏览型号UCC39411PW的Datasheet PDF文件第4页浏览型号UCC39411PW的Datasheet PDF文件第5页浏览型号UCC39411PW的Datasheet PDF文件第6页浏览型号UCC39411PW的Datasheet PDF文件第7页 
application  
INFO  
UCC19411/2/3  
UCC29411/2/3  
UCC39411/2/3  
PRELIMINARY  
available  
Low Power Synchronous Boost Converter  
FEATURES  
DESCRIPTION  
• 1V Input Voltage Operation Start-up  
Guaranteed under FULL Load on  
Main Output, and Operation Down to  
0.5V  
The UCC39411 family of low input voltage, single inductor boost  
converters is optimized to operate from a single or dual alkaline cell, and  
steps up to a 3.3V, 5V, or adjustable output at 200mW. The UCC39411  
family also provides an auxiliary 7V output, primarily for the gate drive  
supply, which can be used for applications requiring an auxiliary output,  
such as 5V, by linear regulating. The primary output will start up under full  
load at input voltages typically as low as 0.8V with a guaranteed max of  
1V, and will operate down to 0.5V once the converter is operating,  
maximizing battery utilization.  
• 200mW Output Power at Battery  
Voltages as low as 0.8V  
• Secondary 7V Supply from a Single  
Inductor  
• Output Fully Disconnected in  
The UCC39411 family is designed to accommodate demanding  
applications such as pagers and cell phones that require high efficiency  
over a wide operating range of several milli-watts to a couple of hundred  
milli-watts. High efficiency at low output current is achieved by optimizing  
switching and conduction losses with a low total quiescent current (50µA).  
At higher output current the 0.5Ω switch, and 1.2Ω synchronous rectifier  
along with continuous mode conduction provide high power efficiency. The  
wide input voltage range of the UCC39411 family can accommodate other  
power sources such as NiCd and NimH.  
Shutdown  
• Adaptive Current Mode Control for  
Optimum Efficiency  
• High Efficiency over Wide Operating  
Range  
• 6µA Shutdown Supply Current  
• Output Reset Function with  
Programmable Reset Period  
The 39411 family also provides shutdown control. Packages available are  
the 8 pin SOIC (D), 8 pin DIP (N or J), and 8 pin TSSOP (PW) to optimize  
board space.  
SIMPIFIED BLOCK DIAGRAM AND APPLICATION CIRCUIT (UCC39412)  
+
22µH  
100µF  
SW  
1V TO 3.5V  
1
6
VIN  
VGD  
8
VOUT  
3.3V 200mW  
1.2Ω  
7
100µF  
100µF  
START-UP  
CIRCUITRY  
0.5Ω  
MODULATOR CONTROL CIRCUIT  
R
RES  
SYNCHRONOUS RECTIFICATION CIRCUITRY  
ANTI-CROSS CONDUCTION  
START-UP  
MULTIPLEXING LOGIC  
MAX INPUT POWER CONTROL  
ADAPTIVE CURRENT CONTROL  
RESB  
CT  
3
4
RESET CONTROL CIRCUIT  
GLITCH SUPRESSION  
SD/FB  
2
PROGRAMMABLE TIMING  
C
T
GND  
5
UDG-98067  
Note: Pinout shown is for the TSSOP Package. Consult Package Descriptions for DIP and SOIC configurations.  
SLUS245A - MARCH 1999  
12345678

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