HomedatasheetUCC28060DR

UCC28060DR Datasheet

Natural Interleaving? DUAL-PHASE TRANSITION-MODE PFC CONTROLLER
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DESCRIPTION
Optimized for high-volume consumer applications, 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.

NATURAL INTERLEAVING FEATURES
• Easy Phase Management Facilitates
   Compliance to Light-Load Efficient Standards
• FailSafe OVP with Dual Paths Prevents Output
   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
• Cost Savings
• 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
• Operating Temperature Range: –40°C to
   +125°C in an SOIC 16-pin package

APPLICATIONS
• 100-W to 800-W Power Supplies
• LCD, Plasma, and DLP® TVs
• Computer Power Supplies
• Entry Level Servers
• Electronic Lighting Ballasts

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Manufacturer information

TEXAS INSTRUMENTS

Texas Instruments introduction - Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today.

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