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UCC28881在单片器件中集成了控制器和14Ω,700V功率MOSFET。该器件还集成了高电压电流源,能够在经整流的市电电压下直接启动和运行.UCC28881与UCC28880属于同一器件系列,具备高电流处理能力。
该器件的静态电流较低,能够提供出色的效率。凭借UCC28881,使用最少的外部组件即可构建降压,降压/升压以及反激拓扑等最常用的转换器拓扑。
UCC28881集成了控制功率级启动的软启动功能,能够最大程度地减小功率级组件所受的压力。
所有商标均为其各自所有者的财产。
| Control Method |
| Output Power 85-265Vac (Max) (W) |
| Output Power 175-265Vac (Max) (W) |
| Vin (Min) (V) |
| Topology |
| Duty Cycle (Max) (%) |
| Frequency (Max) (kHz) |
| UVLO Thresholds On/Off (V) |
| Operating Temperature Range (C) |
| Package Size: mm2:W x L (PKG) |
| UCC28881 | UCC28880 | UCC28910 | UCC28911 |
|---|---|---|---|
| Current | Current | Current | Current |
| 4.5 | 3 | 7.5 | 10 |
| 6 | 4 | 9.5 | 12 |
| 30 | 30 | 30 | 30 |
| Buck | Buck | Buck Flyback | Buck Flyback |
| 55 | 55 | 99 | 99 |
| 62 | 62 | 115 | 115 |
| 3.9/3.6 | 3.9/3.6 | 9.5/6.5 | 9.5/6.5 |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| 7SOIC: 29 mm2: 6 x 4.9(SOIC) | 7SOIC: 29 mm2: 6 x 4.9(SOIC) | 7SOIC: 29 mm2: 6 x 4.9(SOIC) | 7SOIC: 29 mm2: 6 x 4.9(SOIC) |