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數(shù)據(jù)： UCC28722 具有一次側(cè)穩(wěn)壓和 BJT 驅(qū)動(dòng)功能的 恒壓、恒流控制器 數(shù)據(jù)表 (Rev. B)
UCC28722反激電源控制器無需使用光耦合器即可提供單獨(dú)輸出的恒定電壓（CV）和恒定電流（CC）輸出穩(wěn)壓。此器件處理來自一次側(cè)電源開關(guān)和輔助反激式繞組的信息，以對(duì)輸出電壓和電流進(jìn)行精確控制。
可動(dòng)態(tài)控制工作狀態(tài)并定制調(diào)制配置文件，支持在所有負(fù)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(xiàn)行標(biāo)準(zhǔn)。輸出驅(qū)動(dòng)接口與雙極型晶體管功率開關(guān)相連實(shí)現(xiàn)了低成本轉(zhuǎn)換器設(shè)計(jì)。帶有谷值開關(guān)的斷續(xù)導(dǎo)通模式（DCM）減少了開關(guān)損耗，調(diào)制開關(guān)頻率和一次側(cè)峰值電流振幅（FM和AM）可在整個(gè)負(fù)載和線路范圍內(nèi)保持高轉(zhuǎn)換效率。
此控制器的最大開關(guān)頻率為80kHz，并且一直保持對(duì)變壓器內(nèi)峰值一次側(cè)電流的控制。輸出過壓和過流以及輸入欠壓保護(hù)特性有助于此外，UCC28722可以通過設(shè)定外部電阻來補(bǔ)償電纜中的壓降。
所有商標(biāo)均為各自所有者的財(cái)產(chǎn)。
| ? |
|---|
| 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) ? ? |
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