UC1854 高功率因素前置稳压器

The UC1854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. To do this, the UC1854 contains a voltage amplifier, an analog multiplier/divider, a current amplifier, and a fixed-frequency PWM. In addition, the UC1854 contains a power MOSFET compatible gate driver, 7.5V reference, line anticipator, load-enable comparator, low-supply detector, and over-current comparator.

The UC1854 uses average current-mode control to accomplish fixed-frequency current control with stability and low distortion

UC1854
UVLO Thresholds On/Off (V) 16/10    
Operating Supply (Max) (V) 30    
Startup Current (mA) 1.5    
Operating Supply Current (mA) 10    
Vref (V) 7.5    
Vref tol (%) 1.3    
Duty Cycle (Max) (%) 95    
Practical Operating Frequency (Max) (MHz) 0.2    
Pin/Package 16CDIP    
Rating Military    
UC1854 特性
UC1854 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
5962-9326101MEA ACTIVE -55 to 125 10.77 | 100u CDIP (J) | 16 1 | TUBE  
UC1854J ACTIVE -55 to 125 8.78 | 100u CDIP (J) | 16 1 | TUBE  
UC1854J883B ACTIVE -55 to 125 10.77 | 100u CDIP (J) | 16 1 | TUBE  
UC1854 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
5962-9326101MEA TBD   Call TI   Call TI 5962-9326101MEA 5962-9326101MEA
UC1854J TBD   A42   N/A for Pkg Type UC1854J UC1854J
UC1854J883B TBD   A42   N/A for Pkg Type UC1854J883B UC1854J883B
UC1854 工具与软件
培训内容 型号 软件/工具类型
最常用开关模式电源的功率级设计器 POWERSTAGE-DESIGNER 分析软件
UC1854 应用技术支持与电子电路设计开发资源下载
  1. UC1854数据资料 dataSheet 下载.PDF
  2. TI 德州仪器电源管理选型与价格参考 . xls
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