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數(shù)據(jù): BiCMOS Advanced Phase-Shift PWM Controller 數(shù)據(jù)表
UCC2895-Q1是一個相移脈沖寬度調(diào)制(PWM)控制器,通過相移切換實現(xiàn)全橋功率級的控制一個半橋相對于另一個半橋。它允許恒定頻率PWM與諧振零電壓開關相結(jié)合,以在高頻率下提供高效率。該器件可用作電壓模式或電流模式控制器。
雖然UCC2895-Q1保持了UC3875 /6/7/8系列和UC3879的功能,但它在該控制器上有所改進。系列具有增強的控制邏輯,自適應延遲設置和關閉功能等附加功能。由于它采用BCDMOS工藝制造,因此其供電電流遠低于其雙極性工藝。 UCC2895-Q1的最大時鐘頻率為1 MHz。
| ? |
|---|
| 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 |
| ? |
| UCC2895-Q1 | UCC28950-Q1 | UCC28951-Q1 |
|---|---|---|
| Phase-Shifted Full-Bridge ? ? | Phase-Shifted Full-Bridge ? ? | Phase-Shifted Full-Bridge ? ? |
| Current Feedforward Voltage ? ? | Current ? ? | Current Peak Current Mode Voltage ? ? |
| 11 ? ? | 7.3 ? ? | 7.3 ? ? |
| 17 ? ? | 20 ? ? | 20 ? ? |
| 1000 ? ? | 1000 ? ? | 1000 ? ? |
| 11/9 ? ? | 7.3/6.7 ? ? | 7.3/6.7 ? ? |
| 100 ? ? | 97 ? ? | 97 ? ? |
| 0.1 ? ? | 0.2 ? ? | 0.2 ? ? |
| Adjustable Switching Frequency Current Limiting Error Amplifier Multi-topology Soft Start Soft Switching Synchronization Pin ? ? | Adjustable Switching Frequency Current Limiting Error Amplifier Light Load Efficiency Soft Start Soft Switching ? ? | Adjustable Switching Frequency Current Limiting Enable/Shutdown Error Amplifier Green Mode Light Load Efficiency Programmable Slope Compensation Soft Start Soft Switching Synchronization Pin Thermal Shutdown ? ? |
| Automotive ? ? | Automotive ? ? | Automotive ? ? |
| -40 to 125 ? ? | -40 to 105 -40 to 125 ? ? | -40 to 125 ? ? |
| 20SOIC ? ? | 24TSSOP ? ? | 24TSSOP ? ? |