The UCC28019A 8-pin active Power Factor Correction (PFC) controller uses the boost topology operating in Continuous Conduction Mode (CCM). The controller is suitable for systems in the 100 W to >2 kW range over a wide-range universal ac line input. Start-up current during undervoltage lockout is less than 200 µA. The user can control low power standby mode by pulling the VSENSE pin below 0.77 V.

Low-distortion wave shaping of the input current using average current mode control is achieved without input line sensing, reducing the external component count. Simple external networks allow for flexible compensation of the current and voltage control loops. The switching frequency is internally fixed and trimmed to better than ±5% accuracy at 25°C. Fast 1.5-A peak gate current drives the external switch.

Numerous system-level protection features include peak current limit, soft over-current, open-loop detection, input brown-out, and output over/undervoltage. Soft-start limits boost current during start-up. A trimmed internal reference provides accurate protection thresholds and a regulation set-point. An internal clamp limits the gate drive voltage to 12.5 V.

• 8-Pin Solution Reduces External Components
• Wide-Range Universal AC Input Voltage
• Fixed 65-kHz Operating Frequency
• Maximum Duty Cycle of 98% (typ.)
• Output Over/Undervoltage Protection
• Input Brown-Out Protection
• Cycle-by-Cycle Peak Current Limiting
• Open Loop Detection
• Low-Power User-Controlled Standby Mode

• Topology
• Boost
• Control mode
• CCM
• Practical operating frequency (Max) (MHz)
• 0.065
• UVLO thresholds on/off (V)
• 10.5/9.5
• Device type
• Controllers
• Operating supply current (mA)
• 7.5
• Features
• 750W Applications, Average Current Mode, Continuous Control Mode , Brown Out, Enable, OVP
• Rating
• Catalog
• Operating temperature range (C)
• -40 to 125

UCC28019A的完整型号有：UCC28019AD、UCC28019ADR，以下是这些产品的关键参数及官网采购报价：

UCC28019AD，工作温度：-40 to 125，封装：SOIC (D)-8，包装数量MPQ：75个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC28019AD的批量USD价格：.581（1000+）

UCC28019ADR，工作温度：-40 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC28019ADR的批量USD价格：.484（1000+）

UCC28019AEVM — UCC28019AEVM 评估模块

UCC28019A 评估模块 (EVM) 是一款 350W 脱机功率因数校正 (PFC) 升压转换器，它在负载电流为 0.9A 时提供 390V 的稳压输出。该 PFC 转换器能够适应 85VAC 至 265VAC 的输入电压范围，并在 65kHz 的固定频率下采用平均电流模式控制。UCC28019A 具有各种保护功能，旨在确保系统安全运行。UCC28019AEVM 突显了使用 UCC28019A 连续电流模式 PFC 控制器的优点。该控制器在 65kHz (...)