UCC28019评价法模块（EVM）

GY@艳

UCC28019评价法模块（EVM）是一个350瓦的离线功率因数校正（PFC）升压转换器，提供了一个390 V稳压输出0.9 A的负载电流。该PFC转换器可容纳85 VAC的输入电压，范围为265 VAC和采用平均电流模式控制，在65 kHz的固定频率。该UCC28019采用了多种保护功能，确保系统安全运行。DescriptionThe UCC28019 evaluaton module (EVM) is a 350 Watt off-line power factor correction (PFC) boost converter providing a 390 V regulated output at 0.9 A of load current. The PFC converter accommodates an input voltage range of 85 VAC to 265 VAC and uses average current mode control at a fixed frequency of 65 kHz. The UCC28019 incorporates a wide range of protection features to ensure safe system operation. Features

       

• 350 W, 390 V output       
  
• Universal off-line input voltage range       
  
• Average current mode PWM control       
  
• Fixed 65 kHz oscillator frequency       
  
• Cycle-by-cycle peak current limiting       
  
• VCC under voltage lockout       
  
• Voltage regulation open loop detection       
  
• Output under-voltage protection       
  
• Output over-voltage protection       
  
• AC input brown-out protection       
  
• Enhanced dynamic response       
  
• Soft-start