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UC3853J PDF预览

UC3853J

更新时间： 2024-11-26 20:29:19
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
10页 388K
描述
0.5A POWER FACTOR CONTROLLER, 125kHz SWITCHING FREQ-MAX, CDIP8, CERAMIC, DIP-8

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中文翻译

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UC3853J 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：CERAMIC, DIP-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.72
Is Samacsys：N模拟集成电路 - 其他类型：POWER FACTOR CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：40 V最小输入电压：11.2 V
标称输入电压：16 VJESD-30 代码：R-CDIP-T8
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：0.5 A封装主体材料：CERAMIC, METAL-SEALED COFIRED
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：SINGLE最大切换频率：125 kHz
温度等级：COMMERCIAL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

UC3853J 数据手册

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UC1853  
UC2853  
UC3853  
High Power Factor Preregulator  
DESCRIPTION  
FEATURES  
•
Complete 8-pin Power Factor  
Solution  
The UC3853 provides simple, yet high performance active power factor  
correction. Using the same control technique as the UC1854, this 8-pin de-  
vice exploits a simplified architecture and an internal oscillator to minimize  
external component count. The UC3853 incorporates a precision multi-  
plier/squarer/divider circuit, voltage and current loop error amplifiers, and a  
precision voltage reference to implement average current mode control  
with RMS line voltage compensation. This control technique maintains con-  
stant loop gain with changes in input voltage, which minimizes input line  
current distortion over the worldwide input voltage range.  
•
•
•
•
Reduced External Components  
RMS Line Voltage Compensation  
Precision Multiplier/Squarer/Divider  
Internal 75kHz Synchronizable  
Oscillator  
The internal 75kHz oscillator includes an external clock input, allowing syn-  
chronization to downstream converters. Additionally, the device features an  
overvoltage protection comparator, a clamped MOSFET gate driver which  
self-biases low during undervoltage lockout, and low startup and supply  
•
Average Current Mode PWM  
Control  
•
•
Overvoltage Protection Comparator  
High Current, Clamped Gate Driver current.  
These devices are available in 8-pin plastic and ceramic dual in-line (DIP)  
packages, and 8-lead small outline (SOIC) packages. The UC1853 is  
specified for operation from –55°C to +125°C, the UC2853 is specified for  
operation from –25°C to +85°C, and the UC3853 is specified for operation  
from 0°C to +70°C.  
BLOCK DIAGRAM  
UDG-94120-1  
11/97  
1234567...10

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