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數(shù)據(jù): UCC289x Current Mode Active Clamp PWM Controller 數(shù)據(jù)表
UCC2891 /2/3/4系列PWM控制器旨在簡化各種有源鉗位/復位開關(guān)電源拓撲的實現(xiàn)。
UCC289x是一款峰值電流模式,固定頻率,高性能脈沖寬度調(diào)制器。它包括輔助開關(guān)的邏輯和驅(qū)動能力,采用簡單的方法對關(guān)鍵延遲進行編程,以實現(xiàn)正確的有源鉗位操作。
UCC2891 /3包含一個110 V啟動穩(wěn)壓器,用于初始啟動
其他功能包括內(nèi)部可編程斜率補償電路,精確的D MAX 限制,以及單個電阻可編程同步振蕩器,并提供保持有效功能。 。精確的線路監(jiān)控功能還可根據(jù)批量輸入電壓對轉(zhuǎn)換器的ON和OFF轉(zhuǎn)換進行編程。與UCC2897一起,該UCC289x系列允許電源設計人員消除許多外部元件,從而減小設計的尺寸和復雜性。
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| ? |
|---|
| 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 |
| ? |
| UCC2892 | UCC2891 | UCC2893 | UCC2894 |
|---|---|---|---|
| Active-Clamp Forward Flyback Forward ? ? | Active-Clamp Forward Flyback Forward ? ? | Active-Clamp Forward Flyback Forward ? ? | Active-Clamp Forward Flyback Forward ? ? |
| Current ? ? | Current ? ? | Current ? ? | Current ? ? |
| 8.5 ? ? | 18 ? ? | 18 ? ? | 8.5 ? ? |
| 16 ? ? | 110 ? ? | 110 ? ? | 16 ? ? |
| 1000 ? ? | 1000 ? ? | 1000 ? ? | 1000 ? ? |
| 13.0/8.0 ? ? | 13.0/8.0 ? ? | 13.0/8.0 ? ? | 13.0/8.0 ? ? |
| 100 ? ? | 100 ? ? | 100 ? ? | 100 ? ? |
| 2.5 ? ? | 2.5 ? ? | 2.5 ? ? | 2.5 ? ? |
| Input Line Monitor Multi-topology Programmable Slope Compensation Soft Start Soft Switching ? ? | HV Start-up Input Line Monitor Multi-topology Programmable Slope Compensation Soft Start Soft Switching ? ? | HV Start-up Input Line Monitor Multi-topology Programmable Slope Compensation Soft Start Soft Switching ? ? | Input Line Monitor Multi-topology Programmable Slope Compensation Soft Start Soft Switching ? ? |
| Catalog ? ? | Catalog ? ? | Catalog ? ? | Catalog ? ? |
| -40 to 105 -40 to 85 ? ? | -40 to 85 ? ? | -40 to 105 -40 to 85 ? ? | -40 to 85 ? ? |
| 16SOIC 16TSSOP ? ? | 16SOIC 16TSSOP ? ? | 16SOIC 16TSSOP ? ? | 16SOIC 16TSSOP ? ? |