計算工具
UCC28070
- Interleaved Average Current-Mode PWM Control
With Inherent Current Matching - Advanced Current Synthesizer Current Sensing
for Superior Efficiency - Highly-Linear Multiplier Output With Internal
Quantized Voltage Feed-Forward Correction for
Near-Unity PF - Programmable Frequency from 30 kHz to 300 kHz
- Programmable Maximum Duty-Cycle Clamp
- Programmable Frequency-Dithering Rate and
Magnitude for Enhanced EMI Reduction- Magnitude: 3 kHz to 30 kHz
- Rate: Up to 30 kHz
- External-Clock Synchronization Capability
- Enhanced Load and Line Transient Response
through Voltage Amplifier Output Slew-Rate
Correction - Programmable Peak Current Limiting
- Bias-Supply UVLO, Overvoltage Protection, Open-
Loop Detection, and PFC-Enable Monitoring - External PFC-Disable Interface
- Open-Circuit Protection on VSENSE and VINAC
pins - Programmable Soft-Start
The UCC28070 is an advanced power factor correction (PFC) device that integrates two pulse-width modulators (PWMs) operating 180° out of phase. This interleaved PWM operation generates substantial reduction in the input and output ripple currents, allowing the conducted-EMI filtering to become easier and less expensive. A significantly improved multiplier design provides a shared current reference to two independent current amplifiers that ensures matched average-current mode control in both PWM outputs while maintaining a stable, low-distortion, sinusoidal input-line current.
The UCC28070 device contains multiple innovations including current synthesis and quantized voltage feed-forward to promote performance enhancements in PF, efficiency, THD, and transient response. Features including frequency dithering, clock synchronization, and slew rate enhancement further expand the potential performance enhancements.
The UCC28070 device also contains a variety of protection features including output-overvoltage detection, programmable peak-current limit, undervoltage lockout, and open-loop protection.
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檢視所有 11 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC28070 Interleaving Continuous Conduction Mode PFC Controller datasheet (Rev. F) | PDF | HTML | 2016年 4月 18日 |
| Application note | UCC2806x PCB Layout Guideline for PFC | 2019年 4月 29日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Technical article | Are you on-board? Demystifying EV charging systems | PDF | HTML | 2017年 7月 31日 | |
| Technical article | Is PFC possible without input voltage sensing? | PDF | HTML | 2016年 9月 14日 | |
| Technical article | Staying cool, efficiently | PDF | HTML | 2016年 8月 22日 | |
| White paper | An Interleaved PFC Preregulator for High-Power Converters | 2015年 4月 28日 | ||
| More literature | Design Review of a Full-Featured 350-W Offline Power Converter | 2013年 10月 29日 | ||
| Application note | UCC28070 300W Interleaved PFC Pre-regulator Design Review (Rev. B) | 2010年 7月 8日 | ||
| Application note | UCC28070 Implement Bridgeless PFC Pre-Regulator Design | 2009年 6月 18日 | ||
| User guide | UCC28070, 300-W Interleaved PFC Pre-Regulator (Rev. B) | 2009年 5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
UCC28070EVM — UCC28070 評估模組
The UCC28070 evaluation module is a 300W, two-phase interleaved, PFC pre-regulator that uses average current mode control techniques to achieve near unity power factor. The pre-regulator was designed to operate off a universal ac line input of 85V to 265V and provides a regulated 390V dc output. (...)
使用指南: PDF
模擬型號
UCC28070 TINA-TI Start-up Simulation Using Average Model
SLUM328.TSC (813 KB) - TINA-TI Reference Design
參考設計
PMP40261 — 800-W 高效率免橋接功率因數校正 (PFC) 參考設計
This reference design is a bridgeless PFC circuit using UCC28070 Interleaving CCM PFC controller to provide 390-V /2-A output from universal AC input. The circuit uses Average Current Mode PWM control with advanced internal current synthesizer for current sensing. This design achieves 96.57% peak (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DW) | 20 | Ultra Librarian |
| TSSOP (PW) | 20 | 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