UCC28070-Q1
Overview
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.
- 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
