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UCC29412P PDF预览

UCC29412P

更新时间： 2024-11-24 13:15:07
品牌 Logo 应用领域
德州仪器 - TI 转换器升压转换器
页数 文件大小 规格书
8页 146K
描述
0.715A SWITCHING REGULATOR, 500kHz SWITCHING FREQ-MAX, PDIP8, PLASTIC, DIP-8

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中文翻译

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UCC29412P 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：3.8 V最小输入电压：1 V
标称输入电压：1.25 VJESD-30 代码：R-PDIP-T8
长度：9.81 mm功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.715 A
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
认证状态：Not Qualified座面最大高度：5.08 mm
表面贴装：NO切换器配置：BOOST
最大切换频率：500 kHz技术：BICMOS
温度等级：INDUSTRIAL端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

UCC29412P 数据手册

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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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