UCC28061中文资料具有可闻噪声抗扰性的自然交错式转换模式 PFC 控制器数据手册TI规格书

描述 Description

Optimized for consumer applications concerned with audible noise elimination, this solution extends the advantages of transition mode—high efficiency with low-cost components—to higher power ratings than previously possible. By utilizing a Natural Interleaving technique, both channels operate as masters (that is, there is no slave channel) synchronized to the same frequency. This approach delivers inherently strong matching, faster responses, and ensures that each channel operates in transition mode. Complete system-level protections feature input brownout, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional FailSafe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure.

特性 Features

• NATURAL INTERLEAVING FEATURES
• FailSafe OVP with Dual Paths Prevents Output Over-Voltage Conditions Caused by Voltage-Sensing Failures
• Inrush Safe Current Limiting:
• Eliminates reverse recovery events in output rectifiers
• SYSTEM FEATURES
• Soft Start on Overvoltage
• Improved Efficiency and Design Flexibility over Traditional, Single-Phase Continuous Conduction Mode (CCM)
• Reduced current ripple for higher system reliability and smaller bulk capacitor
• Enables Use of Low-Cost Diodes without Extensive Snubber Circuitry
• Improved Transient Response
• 1-A Source/1.8-A Sink Gate Drivers
• APPLICATIONS
• Gaming
• Adapters
• Home Audio Systems

DLP is a trademark of Texas Instruments. Natural Interleaving is a trademark of Texas Instuments.