零件编号 : UCC28061-Q1
功能 : Natural Interleaving™ Transition-Mode PFC Controller With Improved Audible Noise Immunity
制造商 : Texas Instruments
引脚图 :
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.
FEATURES
• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results
– Device Temperature Grade 1: -40°C to +125°C Ambient Operating Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• Easy Phase Management Facilitates Compliance to Light-Load Efficient Standards
• FailSafe OVP with Dual Paths Prevents Outpu Over-Voltage Conditions Caused by Voltage-Sensing Failures
• Sensorless Current Shaping Simplifies Board Layout and Improves Efficiency
• Inrush Safe Current Limiting:
– Prevents MOSFET conduction during inrush
– Eliminates reverse recovery events in output rectifiers
SYSTEM FEATURES
• Improved Audible Noise Performance
• Soft Start on Overvoltage
• Integrated Brownout
• Improved Efficiency and Design Flexibility over Traditional, Single-Phase Continuous
Conduction Mode (CCM)
• Input Filter and Output Capacitor Current Cancellation:
– Reduced current ripple for higher system reliability and smaller bulk capacitor
– Reduced EMI filter size
• Enables Use of Low-Cost Diodes without
Extensive Snubber Circuitry
• Improved Light-Load Efficiency
• Improved Transient Response
• Complete System-Level Protection
• 1-A Source/1.8-A Sink Gate Drivers
APPLICATIONS
• 100-W to 800-W Power Supplies
• E-bike
• Automotive Applications
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文件中的其他数据表：
UCC28061-Q1