UCC25230
- Highly Integrated Converter Operating as a Buck, or Isolated Forward-Flyback, Flybuck™
- Wide Operating Input Voltage Range from 12 V to 100 V, 105-V Surge.
- Up to 0.2-A Output Current
- 9-V Always Available VDD Output with up to 2-mA Current Capability
- Thermally Enhanced 4-mm x 4-mm SON-8/S-PVSON-N8 (DRM) Package
- Internally Set Fixed 380-kHz Switching Frequency
- Internal 2-ms Duration Soft Start
- Voltage Mode Control with Input Feed Forward Allows Optimal Output Filter Design
- 2% Accuracy Internal 2.5-V Reference
- VDD UVLO
- Cycle-by-Cycle Current Limit with Frequency Fold Back for Initial Start up Under High Capacitive Loads
- Input UVLO and OVLO with Input Good Signal
- Integrated 110-V, High and Low-Side Switches
The UCC25230 is a highly integrated PWM converter operating as an isolated forward flyback. It has high-side and low-side power switches integrated and the control circuit with all key converter functions included. The power stage requires only one- or multiple winding coupled inductor and output capacitors for the complete solution. Voltage-mode feed-forward control with external compensation allows optimal output filter selection over wide input voltage range. The UCC25230 has fixed frequency set internally at 380 kHz. It also includes input voltage UVLO and OVLO comparators with hysteresis and input-good, open-collector output signal which can be used to enable PWM controllers.
UCC25230 is available in a thermally enhanced 8-pin SON package with PowerPad serving as a ground pin.
Other features include internal soft start and cycle-by-cycle current protection. Measured efficiency of isolated converter over input voltage and output current ranges are shown in .
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | 12-V to 100-V Input, 0.2-A Output Switching Converter datasheet (Rev. B) | 2012/4/13 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | UCC25230 Bias Power-Supply Design Review | 2012/2/23 | ||||
| 使用指南 | Using the UCC25230EVM-662 | 2012/2/7 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRM) | 8 | Ultra Librarian |
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