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UC2853DTR PDF预览

UC2853DTR

更新时间: 2024-11-05 12:02:03
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
10页 401K
描述
High Power Factor Preregulator

UC2853DTR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:SOP, SOP8,.25
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.89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-PDSO-G8
JESD-609代码:e4长度:4.9 mm
湿度敏感等级:2功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-25 °C最大输出电流:0.5 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.58 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):10 mA
最大供电电压 (Vsup):40 V表面贴装:YES
切换器配置:BOOST最大切换频率:94 kHz
技术:BIPOLAR温度等级:OTHER
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.91 mm

UC2853DTR 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  

UC2853DTR 替代型号

型号 品牌 替代类型 描述 数据表
UC2853D TI

完全替代

High Power Factor Preregulator
UC2853DG4 TI

完全替代

High Power Factor Preregulator
UC3853D TI

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High Power Factor Preregulator

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