계산 툴
데이터시트
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.
관심 가지실만한 유사 제품
비교 대상 장치보다 업그레이드된 기능을 지원하는 즉각적 대체품
기술 문서
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모두 보기11 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | UCC28070 Interleaving Continuous Conduction Mode PFC Controller datasheet (Rev. F) | PDF | HTML | 2016/04/18 |
| Application note | UCC2806x PCB Layout Guideline for PFC | 2019/04/29 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Technical article | Are you on-board? Demystifying EV charging systems | PDF | HTML | 2017/07/31 | |
| Technical article | Is PFC possible without input voltage sensing? | PDF | HTML | 2016/09/14 | |
| Technical article | Staying cool, efficiently | PDF | HTML | 2016/08/22 | |
| White paper | An Interleaved PFC Preregulator for High-Power Converters | 2015/04/28 | ||
| More literature | Design Review of a Full-Featured 350-W Offline Power Converter | 2013/10/29 | ||
| Application note | UCC28070 300W Interleaved PFC Pre-regulator Design Review (Rev. B) | 2010/07/08 | ||
| Application note | UCC28070 Implement Bridgeless PFC Pre-Regulator Design | 2009/06/18 | ||
| User guide | UCC28070, 300-W Interleaved PFC Pre-Regulator (Rev. B) | 2009/05/12 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
UCC28070EVM — UCC28070 평가 모듈
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. (...)
사용 설명서: PDF
시뮬레이션 모델
UCC28070 TINA-TI Start-up Simulation Using Average Model
SLUM328.TSC (813 KB) - TINA-TI Reference Design
레퍼런스 디자인
PMP40261 — 800W 고효율 브리지리스 PFC(역률 보정) 레퍼런스 설계
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 (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| SOIC (DW) | 20 | 옵션 보기 |
| TSSOP (PW) | 20 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치