UCC28521 Datasheet (Texas Instruments) - Advanced PFC/PWM Combination Controller

UCC28521, Advanced PFC/PWM Combination Controller

The UCC28521 and UCC28528 combination PFC/PWM controllers provide complete control functionality for any off-line power system requiring compliance with the IEC1000 *3 *2 harmonic reduction requirements.

By combining the control and drive signals for the PFC and the PWM stages into a s

UCC28521 Features

* D Provides Control of PFC and PWM Power Stages In One Device D Trailing-Edge PFC, Trailing-Edge PWM Modulation D Built-In Sequencing of PFC and PWM Turn-On D 2-A Source and 3-A Sink Gate Drive for Both PFC and PWM Stages D Typical 16-ns Rise Time and 7-ns Fall Time into 1-nF Loads PFC Features