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UCCx808-x是一系列BiCMOS推挽式高速,低功耗脉冲宽度调制器。 UCCx808包含离线或DC-DC固定频率电流模式开关电源所需的所有控制和驱动电路,外部元件数量最少。
安排UCCx808-x双输出驱动级在推拉式配置中。两个输出均使用拨动触发器以振荡器频率的一半切换。两个输出之间的死区时间通常为60 ns至200 ns,具体取决于定时电容和电阻的值,从而将每个输出级占空比限制在50%以内。
Topology |
Control Method |
Vin (Min) (V) |
Vin (Max) (V) |
Frequency (Max) (kHz) |
UVLO Thresholds On/Off (V) |
Duty Cycle (Max) (%) |
Gate Drive (Typ) (A) |
Features |
Rating |
Operating Temperature Range (C) |
Pin/Package |
UCC3808-2 | UCC3808-1 | UCC3808A-1 | UCC3808A-2 |
---|---|---|---|
Push-Pull | Push-Pull | Push-Pull | Push-Pull |
Current | Current | Current | Current |
4.1 | 8.3 | 8.3 | 4.1 |
15 | 15 | 15 | 15 |
1000 | 1000 | 1000 | 1000 |
4.3/4.1 | 12.5/8.3 | 12.5/8.3 | 4.3/4.1 |
49 | 49 | 49 | 49 |
1 | 1 | 1 | 1 |
Error Amplifier Multi-topology Soft Start | Error Amplifier Multi-topology Soft Start | Error Amplifier Multi-topology Soft Start | Error Amplifier Multi-topology Soft Start |
Catalog | Catalog | Catalog | Catalog |
0 to 70 | 0 to 70 | 0 to 70 | 0 to 70 |
8PDIP 8SOIC | 8PDIP 8SOIC | 8PDIP 8SOIC | 8PDIP 8SOIC 8TSSOP |