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数据: UCC2817, UCC2818, UCC3817 and UCC3818 BiCMOS Power Factor Pregulator 数据表
UCCx817和UCCx818系列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AC输入线电流波形整形为与AC输入线电压的波形相对应来实现接近单位的功率因数。平均电流模式控制可保持稳定,低失真的正弦线电流。
UCCx817和UCCx818采用Texas Instrument的BiCMOS工艺设计,具有启动电流更低,功耗更低,过压保护等新特性。分流UVLO检测电路,一种前沿调制技术,可减少大容量电容中的纹波电流;一种改进的低偏移(±2-mV)电流放大器,可减轻轻负载条件下的失真。
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 |
UCC3817 | UCC3818 |
---|---|
Single-phase PFC | Single-phase PFC |
CCM | CCM |
16/10 | 10.5/10 |
18 | 18 |
4 | 4 |
16PDIP 16SOIC 16SOIC | 16PDIP 16SOIC 16SOIC 16TSSOP |
0 to 70 | 0 to 70 |
Catalog | Catalog |
< 150W Applications > 750W Applications Average Current Mode Enable OVP | < 150W Applications > 750W Applications Average Current Mode Enable OVP |