UCC29910A - Texas Instruments

UCC29910A Buck PFC Controller

The UCC29910A Buck Power Factor Correction (PFC) controller provides a relatively flat high-efficiency performance across universal line for designers requiring a high power factor (>0.9) and wishing to meet the requirements of IEC 61000-3-2. Based on a buck topology, inherent inrush current limiting eliminates the need for additional components. With a typi.

Features

1
• Buck Power Factor Correction for High Efficiency Across Line
• Low Off-Line Startup Current, With SmartStart Algorithm for Fast Startup With Soft-Start
• Compatible With Resistive or Pass Transistor Fed Startup from the AC Line
• Low Power SmartBurst Mode for Standby and Light-Load Conditions
• Current Sense Inputs for PFC control and Overload Protection
• Line Sense UVLO
• Sense and Drive Control for External Startup Depletion Mode FET
• Latching Fault Input Pin APPLICATIONS
• High Efficiency AC-DC Adapters
• Low Profile and High Density Adapters DESCRIPTION The UCC29910A Buck Power Fact.