計算工具
UCC25660X-CALC — UCC25660X Design Calculator
The purpose of this tool is to aid in the design of the main power stage components of a LLC Resonant Converter along with component calculations using UCC25660x controller.
UCC25660
- 50kHz to 750kHz full-load switching frequency
- IPPC control enables wide input & output LLC (WLLC) operation
- Enhanced light load management:
- High frequency pulse skip for improved light load efficiency
- Low frequency burst for low standby power
- Audible frequency range skip for reduced audible noise
- Integrated PFC on/off control signal to help further reduce standby power
- Internal resonant-capacitor voltage synthesizer for enhanced signal reliability and high startup frequency support
- Automatic capacitive region avoidance
- Adaptive softs start with minimized inrush current
- Integrated high-voltage startup ( UCC256601, UCC256602, and UCC256604)
- X-capacitor discharge ( UCC256601 and UCC256604).
- Integrated +0.6/-1.2A gate drive
- Complete protections
- 50ns Over-Current Protection (OCP) - cycle-by-cycle current limit
- Over-Voltage Protection (OVP), internal and external Over-Temperature Protection (OTP)
- Input and VCCP UVLO with Internal 19V VCCP Clamp
- SOIC-14 package with removed pins for high-voltage clearance
The UCC25660 is a high-frequency LLC controller implementing Input-Power Proportional Control (IPPC) scheme, along with an enhanced light-load management and multiple protection features.
IPPC widens the control range of the LLC converter simplifies the design of wide input and output-voltage range applications such as LED drivers, battery chargers. It can even work without a PFC for non-universal input applications.
The UCC25660’s enhanced light-load management improves while minimizing audible noise. To minimize standby power, the UCC25660 can directly disable the PFC controller when operating in burst mode.
The automatic capacitive region avoidance scheme along with the adaptive soft start with reverse recovery avoidance scheme ensures that the device can never work in a mode where there is a potential to damage the FET’s. This scheme makes the controller ideal for working with a pre-biased load.
The UCC25660 comes with robust protection to help you design a reliable power supply. The UCC25660 has options supporting high-voltage startup, X-capacitor (X-cap) discharge, OVP response, and extended power range. See details in the device comparison table.
技術文件
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檢視所有 6 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC25660750kHz Wide VIN/VOUTRange LLC Controller Optimizedfor Light-Load Efficiency datasheet (Rev. A) | PDF | HTML | 2023年 11月 9日 |
| Certificate | CB TEST CERTIFICATE US-43600-UL | 2024年 3月 28日 | ||
| Certificate | CB TEST CERTIFICATE US-43601-UL | 2024年 3月 28日 | ||
| Technical article | 跳出 LLC 串聯諧振轉換器的思維框架 | PDF | HTML | 2024年 3月 20日 | |
| Product overview | UCC25660x Selection Guide (Rev. A) | PDF | HTML | 2023年 9月 14日 | |
| Certificate | UCC25660EVM-064 EU Declaration of Conformity (DoC) | 2023年 6月 12日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
UCC25660EVM-064 — UCC25660 評估模組
UCC25660EVM-064 可協助設計人員評估 UCC25660 LLC 全橋式控制器的運作及性能。此評估模組 (EVM) 展示了 UCC25660 如何控制 LLC 全橋式半橋 DC/DC 轉換器，從而在整個負載和輸入電壓範圍內實現高效率。此 EVM 可接受 365V 至 410V 的 DC 輸入、85VAC 至 264VAC 的 AC 輸入電壓，並輸出 12VDC 和 180W 滿載輸出功率。
| 封裝 | 引腳 | 下載 |
|---|---|---|
| SOIC (DDB) | 14 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點