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UCC2819 /UCC3819提供有源功率因数校正前置调节器所需的所有功能。控制器通过将交流输入线电流波形整形为对应于交流输入线电压的波形来实现接近单位功率因数。平均电流模式控制保持稳定,低失真的正弦线电流。
UCC3819采用德州仪器的BiCMOS工艺设计,具有启动电流更低,功耗更低,过压保护等新功能。分流UVLO检测电路和前沿调制技术可降低大容量电容中的纹波电流。
UCC3819允许通过输出误差放大器同相输入来对输出电压进行编程。
提供16引脚D,DW,N和PW封装。
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 |
UCC2819 | UCC2817 | UCC2818 |
---|---|---|
Single-phase PFC | Single-phase PFC | Single-phase PFC |
CCM | CCM | CCM |
10.2/9.7 | 16/10 | 10.5/10 |
17 | 18 | 18 |
4 | 4 | 4 |
16SOIC | 16PDIP 16SOIC 16SOIC | 16PDIP 16SOIC 16SOIC 16TSSOP |
-40 to 85 | -40 to 85 | -40 to 85 |
Catalog | Catalog | Catalog |
Average Current Mode Enable OVP | < 150W Applications > 750W Applications Average Current Mode Enable OVP | < 150W Applications > 750W Applications Average Current Mode Enable OVP |