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UCC28722反激電源控制器無需使用光耦合器即可提供單獨輸出的恒定電壓(CV)和恒定電流(CC)輸出穩壓。此器件處理來自一次側電源開關和輔助反激式繞組的信息,以對輸出電壓和電流進行精確控制。
可動態控制工作狀態并定制調制配置文件,支持在所有負載條件
UCC28722所采用的控制算法使得工作效率符合甚至超過現行標準。輸出驅動接口與雙極型晶體管功率開關相連實現了低成本轉換器設計。帶有谷值開關的斷續導通模式(DCM)減少了開關損耗,調制開關頻率和一次側峰值電流振幅(FM和AM)可在整個負載和線路范圍內保持高轉換效率。
此控制器的最大開關頻率為80kHz,并且一直保持對變壓器內峰值一次側電流的控制。輸出過壓和過流以及輸入欠壓保護特性有助于此外,UCC28722可以通過設定外部電阻來補償電纜中的壓降。
所有商標均為各自所有者的財產。
| ? |
|---|
| Control Method |
| Duty Cycle (Max) (%) |
| Frequency (Max) (kHz) |
| UVLO Thresholds On/Off (V) |
| Features |
| Operating Temperature Range (C) |
| Package Group |
| Rating |
| Package Size: mm2:W x L (PKG) |
| ? |
| UCC28722 | UCC28700 | UCC28701 | UCC28702 | UCC28703 | UCC28704 | UCC28710 | UCC28711 | UCC28720 | UCC28740 | UCC28742 |
|---|---|---|---|---|---|---|---|---|---|---|
| Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? | Current ? ? |
| 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? | 99 ? ? |
| 80 ? ? | 132 ? ? | 132 ? ? | 132 ? ? | 132 ? ? | 85 ? ? | 100 ? ? | 100 ? ? | 80 ? ? | 100 ? ? | 105 ? ? |
| 21/7.7 ? ? | 21/8.1 ? ? | 21/8.1 ? ? | 21/8.1 ? ? | 21/8.1 ? ? | 21/7.7 ? ? | 21/8 ? ? | 21/8 ? ? | 21/7.7 ? ? | 21/7.75 ? ? | 22/7.7 ? ? |
| PSR BJT Switch Adjustable CBC CV/CC Control DCM Smart Meters Compatible IoT Compatible Power Delivery Compatible ? ? | PSR Adjustable CBC CV/CC Control DCM Power Delivery Compatible ? ? | PSR NTC Configurable CV/CC Control DCM Power Delivery Compatible ? ? | PSR Fixed CBC NTC Configurable CV/CC Control DCM ? ? | PSR Fixed CBC NTC Configurable CV/CC Control DCM ? ? | PSR HV Start-up Configurable Fixed CBC NTC Configurable CV/CC Control DCM USB Type-C Compatible IoT Compatible Power Delivery Compatible ? ? | PSR HV Start-up Adjustable CBC CV/CC Control DCM Green Mode Input Line Monitor Leading Edge Blanking Light Load Efficiency Low Power Soft Start Smart Meters Compatible IoT Compatible Power Delivery Compatible ? ? | PSR HV Start-up NTC Configurable CV/CC Control DCM Green Mode Input Line Monitor Leading Edge Blanking Light Load Efficiency Low Power Soft Start Smart Meters Compatible IoT Compatible Power Delivery Compatible ? ? | PSR HV Start-up BJT Switch Adjustable CBC CV/CC Control DCM Current Limiting Green Mode HV Start-up Input Line Monitor Leading Edge Blanking Light Load Efficiency Low Power Soft Start Smart Meters Compatible IoT Compatible Power Delivery Compatible ? ? | SSR HV Start-up CV/CC Control DCM Smart Meters Compatible IoT Compatible USB Type-C Compatible Power Delivery Compatible ? ? | SSR DCM Smart Meters Compatible IoT Compatible Power Delivery Compatible ? ? |
| -40 to 125 ? ? | -20 to 125 ? ? | -20 to 125 ? ? | -20 to 125 ? ? | -20 to 125 ? ? | -40 to 125 ? ? | -40 to 125 ? ? | -40 to 125 ? ? | -40 to 125 ? ? | -40 to 125 ? ? | -40 to 125 ? ? |
| SOT-23 ? ? | SOT-23 ? ? | SOT-23 ? ? | SOT-23 ? ? | SOT-23 ? ? | SOT-23 ? ? | SOIC ? ? | SOIC ? ? | SOIC ? ? | SOIC ? ? | SOT-23 ? ? |
| Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? |
| 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? | 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) ? ? | 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) ? ? |