Texas Instruments

Description

UCC28220 for off-line converters or low input voltage systems. UCC28221 Packaging: Available in SOIC-16, TSSOP-16 (both UCC28220 and. UCC28221) to control external circuitry. The UCC28220 interleaved PWM provides OVP protection and provides load sharing between the two interleaved boost converters. UCC28061. UCC28070. UCC28220 /21. UCC38C42. UCC3800. Application Notes:**. Understanding Buck-Boost Power. Stages in Switchmode Power Supplies. UCC28220 /1. Interleaved. Fwd/Flyback. Prog MaxDC >50%. UC3849. Avg.I- Mode w/ LS. UC3824. UCC3839. Avg.I-Mode. UCC3960/61. Primary Side. Start- up. 3 for 69% duty cycle. Input Current IIN. IL2. IL1. CH2. CH1. M1. Fig. 7. Inductor ripple current, POUT = 350 W. UCC28220 . Interleaved. PWM. Controller. VLINE.