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数据: UCC28070-Q1 Interleaving Continuous Conduction Mode PFC Controller. 数据表
UCC28070是一款先进的功率因数校正设备,集成了两个脉冲宽度调制器(PWM),相位相差180°。这种交错式PWM操作可显着降低输入和输出纹波电流,传导EMI滤波变得更容易,成本更低。显着改进的乘法器设计为两个独立的电流放大器提供共享电流参考,确保两个PWM输出中的匹配平均电流模式控制,同时保持稳定,低失真的正弦输入线电流。
UCC28070包含多个包括电流合成和量化电压前馈在内的创新,以提高PF,效率,THD和瞬态响应的性能。包括频率抖动,时钟同步和转换速率增强在内的功能进一步扩展了潜在的性能增强。
UCC28070还包含多种保护功能,包括输出过压检测,可编程峰值电流限制,欠压锁定和开环保护。
Device Type |
Control Method |
UVLO Thresholds On/Off (V) |
Operating Supply (Max) (V) |
Operating Supply Current (mA) |
Pin/Package |
Operating Temperature Range (C) |
Rating |
Features |
UCC28070-Q1 | UCC28061-Q1 | UCC2818A-Q1 |
---|---|---|
Interleaved PFC | Interleaved PFC | Single-phase PFC |
CCM | TM | CCM |
10.2/9.2 | 12.6/10.4 | 10.5/10 |
21 | 21 | 18 |
20 | 5 | 4 |
20TSSOP | 16SOIC | 16SOIC |
-40 to 125 | -40 to 125 | -40 to 125 |
Automotive | Automotive | Automotive |
Automotive qualified Feed-forward correction for near unity PF Frequency dithering for enhanced EMI reduction Programmable frequency Programmable soft-start Synchronizable | > 750W Applications Enable Interleaved OVP Transition Mode Control | < 150W Applications > 750W Applications Average Current Mode Enable OVP |