UCC28070-Q1
SLUSA71A – JULY 2010 – REVISED JUNE 2011 www.ti.com INTERLEAVING CONTINUOUS CONDUCTION MODE PFC CONTROLLER
Check for Samples: UCC28070-Q1 FEATURES 1 DESCRIPTION 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 …
