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 and 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 soft 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 UCC25660x family 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 UCC25660x family’s enhanced light-load management improves while minimizing audible noise. To minimize standby power, the UCC25660x family 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 UCC25660x family comes with robust protection to help you design a reliable power supply. The UCC25660x family has options supporting high-voltage startup, X-capacitor (X-cap) discharge, OVP response, and extended Gain range. See details in the device comparison table.
技術文件
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檢視所有 7 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC25660x Family 750kHz Wide VIN /VOUT Range LLC Controller Optimized for Light-Load Efficiency datasheet (Rev. B) | PDF | HTML | 2024年 7月 8日 |
| Product overview | UCC25660x Selection Guide (Rev. A) | PDF | HTML | 2024年 5月 30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 | |
| Certificate | UCC25660EVM-064 EU Declaration of Conformity (DoC) | 2023年 6月 12日 | ||
| Application note | Improving ZVS and efficiency in LLC converters | 2018年 11月 5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)。
參考設計
PMP23454 — 通用輸入、430W 電動工具充電器參考設計
此參考設計為適合電動工具應用的通用輸入、430W 定電流 (CC)、定電壓 (CV) 充電器。此參考設計在涓流充電模式下支援 0V 至 12.5V 的輸出電壓範圍，在全充電模式下支援 7.5V 至 22.5V 的輸出電壓範圍。已停用功率因數校正 (PFC)，且在涓流充電模式下，電感器-電感器電容器 (LLC) 會進入低功率模式，因此在 115Vac 時可達到 174mW 的無負載待機功率，在 230Vac 時則可達到 325mW。此參考設計使用 UCC28180、UCC256604、UCC24612、TL331 和 TPS7B8133 裝置。
Test report: PDF
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DDB) | 14 | Ultra Librarian |
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
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點