UCC28881
- Integrated 14-Ω, 700-V Power MOSFET
- Integrated High-Voltage Current Source for Internal Device Bias Power
- Integrated Current Sense
- Internal Soft Start
- Self-Biased Switcher (Start Up and Operation Directly from Rectified Mains Voltage)
- Supports Buck, Buck-Boost and Flyback Topologies
- <100-μA Device Quiescent Current
- Robust Current Protection During Load Short Circuit
- Protection
- Current Limit
- Overload and Output Short Circuit
- Over Temperature
The UCC28881 integrates the controller and a 14-Ω, 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source, enabling start up and operation directly from the rectified mains voltage. UCC28881 is the same family device of UCC28880, with higher current handling capability.
The low quiescent current of the device enables excellent efficiency. With the UCC28881 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.
The UCC28881 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | UCC28881 700-V, 225-mA Low Quiescent Current Off-Line Converter datasheet (Rev. B) | PDF | HTML | 2016年 1月 11日 |
White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024年 4月 30日 | |
Application note | Operating UCC2888x Offline Buck in Saturation for Cost Reduction | 2018年 6月 22日 | ||
Technical article | How to build a cost-competitive and robust auxiliary power supply | PDF | HTML | 2018年 2月 1日 | |
Application note | UCC2888x Diode Selection When Configured as High Side Buck | 2017年 11月 20日 | ||
Technical article | Unique techniques to increase controller power | PDF | HTML | 2017年 8月 23日 | |
Application note | UCC28880, UCC28881 Audible Noise Reduction Techniques | 2017年 3月 23日 | ||
Technical article | Powering the IoT | PDF | HTML | 2017年 1月 26日 | |
EVM User's guide | Using the UCC28881EVM-680 (Rev. A) | 2015年 12月 8日 | ||
Technical article | Power Tips: Design considerations of high-voltage converters in a cascode MOSFET | PDF | HTML | 2015年 11月 3日 |
設計與開發
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UCC28881EVM-680 — UCC28881 離線高壓側降壓轉換器評估模組
The UCC28881EVM-680 evaluation module (EVM) is an offline high-voltage buck-type power supply that provides 13 VDC at a maximum output of 225 mA. The input accepts a voltage range of 85 VAC to 265 VAC.
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOIC (D) | 7 | Ultra Librarian |
訂購與品質
- 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
- 晶圓廠位置
- 組裝地點