UCC28070
Zweiphasiger Interleaved-CCM-PFC-Controller für Continuous-Conduction-Modus (CCM)
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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Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität
Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | UCC28070 Interleaving Continuous Conduction Mode PFC Controller datasheet (Rev. F) | PDF | HTML | 18 Apr 2016 |
Application note | UCC2806x PCB Layout Guideline for PFC | 29 Apr 2019 | ||
Selection guide | Power Management Guide 2018 (Rev. R) | 25 Jun 2018 | ||
Technical article | Are you on-board? Demystifying EV charging systems | PDF | HTML | 31 Jul 2017 | |
Technical article | Is PFC possible without input voltage sensing? | PDF | HTML | 14 Sep 2016 | |
Technical article | Staying cool, efficiently | PDF | HTML | 22 Aug 2016 | |
White paper | An Interleaved PFC Preregulator for High-Power Converters | 28 Apr 2015 | ||
More literature | Design Review of a Full-Featured 350-W Offline Power Converter | 29 Okt 2013 | ||
Application note | UCC28070 300W Interleaved PFC Pre-regulator Design Review (Rev. B) | 08 Jul 2010 | ||
Application note | UCC28070 Implement Bridgeless PFC Pre-Regulator Design | 18 Jun 2009 | ||
User guide | UCC28070, 300-W Interleaved PFC Pre-Regulator (Rev. B) | 12 Mai 2009 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
UCC28070EVM — UCC28070-Evaluierungsmodul
UCC28070 PSpice Start-up Simulation Using Average Model
UCC28070 TINA-TI Start-up Simulation Using Average Model
PMP40261 — Referenzdesign eines 800-W hocheffizienten brückenlosen Leistungsfaktorkorrekturfilters (PFC)
Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
SOIC (DW) | 20 | Ultra Librarian |
TSSOP (PW) | 20 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
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