UCC28070-Q1
- Qualified for Automotive Applications
- 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 (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, Over-Voltage Protection, Open-Loop Detection,
and PFC-Enable Monitoring - External PFC-Disable Interface
- Open-Circuit Protection on VSENSE and VINAC pins
- Programmable Soft Start
- 20-Lead TSSOP Package
The UCC28070 is an advanced power factor correction 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, and the conducted-EMI filtering becomes 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 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 also contains a variety of protection features including output over-voltage detection, programmable peak-current limit, under-voltage lockout, and open-loop protection.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | UCC28070-Q1 Interleaving Continuous Conduction Mode PFC Controller. datasheet (Rev. A) | 2011年 6月 30日 | |
| Application note | PFC Design Choice for On Board Charger Designs | 2018年 5月 24日 | ||
| Application brief | Reducing Switching Losses in On-Board Chargers for Electric Vehicles | 2018年 3月 27日 | ||
| Technical article | Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w | PDF | HTML | 2017年 12月 27日 | |
| Technical article | Are you on-board? Demystifying EV charging systems | PDF | HTML | 2017年 7月 31日 | |
| Application note | UCC28070 Implement Bridgeless PFC Pre-Regulator Design | 2009年 6月 18日 |
設計與開發
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UCC28070EVM — UCC28070 評估模組
| 封裝 | 引腳 | 下載 |
|---|---|---|
| TSSOP (PW) | 20 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點