text.skipToContent text.skipToNavigation


Automotive Transition-Mode, Interleaved PFC Controller with Improved Audible Noice Immunity


Package | PIN: D | 16
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.20
10-24 $2.88
25-99 $2.68
100-249 $2.35
250-499 $2.20
500-749 $1.87
750-999 $1.58
1000+ $1.51


  • 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 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

  • 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

Texas Instruments  UCC28061QDRQ1

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 (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.