UCC256402
- Optimized low-power mode and burst mode algorithm
- Burst mode with Soft-ON and Soft-OFF periods
- Minimized audible noise at no load and standby
- User option to disable burst mode
- Opto-coupler low-power operation
- Efficiency performance exceeds DoE Level VI and EU CoC Tier-2 External Power Supply Standards
- Hybrid hysteretic control (HHC)
- Best-in-class transient response
- Fast exit from burst mode
- Robust adaptive dead-time control
- Integrated high-voltage gate driver with 0.6A source and 1.2A sink capability
- Robust capacitive region (ZCS) avoidance scheme
- Over temperature, output over voltage, input undervoltage protection, three levels of overcurrent protection
- Integrated high voltage startup function
- Active X-capacitor discharge function
The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver. UCC25640x is designed to pair with a PFC controller to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter.
UCC25640x provides a highly efficient burst mode with soft-on and soft-off periods to minimize audible noise at standby operation. The burst power level and hysteresis are programmable, simplifying the optimization of efficiency and burst mode operation. Disable burst mode through the pin configuration. UCC25640x uses hybrid hysteretic control to provide best in class line and load transient response.
UCC25640x includes a range of features designed to make LLC converter operation well controlled and protected. Use UCC25640x with UCC28056 or UCC28064A PFC controllers, along with a UCC24624 synchronous rectifier controller to offer a complete power supply option.
技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | UCC25640x LLC Resonant Controller with Ultra-Low Audible Noise and Standby Power データシート (Rev. F) | PDF | HTML | 2026/08/11 | ||
| アプリケーション・ノート | UCC25640X Benefits in LED Lighting PSU | PDF | HTML | 2024/01/04 | |||
| アプリケーション・ノート | Most Frequently Asked Questions About the UCC25640x LLC Resonant Controller | PDF | HTML | 2023/06/05 | |||
| アプリケーション・ノート | UCC25640x LLC Resonant Controller Features Brief Overview and Bring up Guideline | PDF | HTML | 2022/06/20 | |||
| アプリケーション・ノート | Improving Transient Response in LLC Converters Using Hybrid Hysteretic Control (Rev. B) | 2021/04/07 | ||||
| 技術記事 | How to reduce audible noise and power consumption at standby in your AC/DC design | PDF | HTML | 2020/04/22 | |||
| アプリケーション・ノート | Migrating to UCC25640x from UCC25630x (Rev. A) | 2019/12/10 | ||||
| アプリケーション・ノート | Improving ZVS and efficiency in LLC converters | 2018/11/05 |
設計と開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
PFCLLCSREVM034 — AC から絶縁型 DC の EVM、UCC28056B、UCC256404 および UCC24624 搭載
PFCLLCSREVM034 は、168W の AC/DC 電源であり、臨界モードの力率補正フロント エンドや絶縁型ハーフ ブリッジ LLC 共振コンバータを、同期整流と組み合わせています。この EVM は、90Vrms ～ 264Vrms の AC 入力を受け入れ、12V DC の電圧で、168W の全負荷出力電力を供給します。
UCC25640EVM-020 — UCC25640x ハーフ ブリッジ LLC 評価モジュール
SLUC675 — UCC25640x Design Calculator
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| SOIC (DDB) | 14 | Ultra Librarian |
購入と品質
推奨製品には、この TI 製品に関連するパラメータ、評価基板、またはリファレンス デザインが存在する可能性があります。