UCC28070PW Maximum Switching Frequency, Texas Instruments UCC28070PW, Power Factor Controller, 10 to 300 kHz, 21 V 20-Pin, TSSOP

PWM Controllers 300kHz to 400kHz, Texas Instruments
From Texas Instruments, a range of Pulse Width Modulation controllers and associated devices to suit a variety of applications and specifications.
The Texas Instruments 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.
Interleaved Average Current-Mode PWM ControlWith Inherent Current MatchingAdvanced Current Synthesizer Current Sensingfor Superior EfficiencyHighly-Linear Multiplier Output With InternalQuantized Voltage Feed-Forward Correction forNear-Unity PFProgrammable Frequency from 30 kHz to 300 kHzProgrammable Maximum Duty-Cycle ClampProgrammable Frequency-Dithering Rate andMagnitude for Enhanced EMI ReductionMagnitude: 3 kHz to 30 kHzRate: Up to 30 kHzExternal-Clock Synchronization CapabilityEnhanced Load and Line Transient Responsethrough Voltage Amplifier Output Slew-RateCorrectionProgrammable Peak Current LimitingBias-Supply UVLO, Overvoltage Protection, Open-Loop Detection, and PFC-Enable MonitoringExternal PFC-Disable InterfaceOpen-Circuit Protection on VSENSE and VINACpins
PWM (Pulse Width Modulation) Controllers, Texas Instruments