Texas Instruments UCC28064A Transition-Mode PFC Controller
Texas Instruments UCC28064A Transition-Mode PFC Controller has higher power ratings than previously possible. The device uses a Natural Interleaving™ technique. Both channels operate as masters (there is no slave channel) synchronized to the same frequency. This approach enables faster response time, excellent phase-to-phase on-time matching, and transition mode operation for each channel. The device has a burst mode function to get high light-load efficiency. Burst mode eliminates the need to turn off the PFC during light load operation to meet standby power targets. Burst mode eliminates the need for an auxiliary flyback converter when paired with the UCC25630x LLC controller and the UCC24624 synchronous rectifier controller.
Features
- Input filter and output capacitor ripple-current reduction
- Reduced current ripple for higher system reliability and smaller bulk capacitor
- Reduced EMI filter size
- High light-load efficiency
- User adjustable phase management with input voltage compensation
- Burst mode operation with adjustable burst threshold
- Helps enable compliance to EUP Lot6 Tier II, CoC Tier II, and DOE level VI standards
- Sensorless current-shaping simplifies board layout and improves efficiency
- Input line feed-forward for fast line transient response
- Inrush-safe current limiting
- Prevents MOSFET conduction during inrush
- Eliminates CCM operation and reverse recovery events in output rectifier
- Operating temperature range –40°C to +125°C in a 16-pin SOIC package
Applications
- HD, U-HD, and LED TVs
- All-in-One PC
- Gaming
- Adapters
- Home audio systems
Simplified Application
Paskelbta: 2018-11-02
| Atnaujinta: 2023-07-18