Zenode.ai Logo
Beta
K

UCC28061-Q1 Series

Automotive transition-mode interleaved PFC controller with improved audible noise immunity

Manufacturer: Texas Instruments

Catalog

Automotive transition-mode interleaved PFC controller with improved audible noise immunity

Key Features

Qualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to +125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3BEasy Phase Management Facilitates Compliance toLight-Load Efficient StandardsFailSafe OVP with Dual Paths Prevents Output Over-VoltageConditions Caused by Voltage-Sensing FailuresSensorless Current Shaping Simplifies Board Layout andImproves EfficiencyInrush Safe Current Limiting:Prevents MOSFET conduction during inrushEliminates reverse recovery events in output rectifiersSystem FeaturesImproved Audible Noise PerformanceSoft Start on OvervoltageIntegrated BrownoutImproved 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 andsmaller bulk capacitorReduced EMI filter sizeEnables Use of Low-Cost Diodes without Extensive Snubber CircuitryImproved Light-Load EfficiencyImproved Transient ResponseComplete System-Level Protection1-A Source/1.8-A Sink Gate DriversQualified for Automotive ApplicationsAEC-Q100 Qualified With the Following ResultsDevice Temperature Grade 1: –40°C to +125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C3BEasy Phase Management Facilitates Compliance toLight-Load Efficient StandardsFailSafe OVP with Dual Paths Prevents Output Over-VoltageConditions Caused by Voltage-Sensing FailuresSensorless Current Shaping Simplifies Board Layout andImproves EfficiencyInrush Safe Current Limiting:Prevents MOSFET conduction during inrushEliminates reverse recovery events in output rectifiersSystem FeaturesImproved Audible Noise PerformanceSoft Start on OvervoltageIntegrated BrownoutImproved 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 andsmaller bulk capacitorReduced EMI filter sizeEnables Use of Low-Cost Diodes without Extensive Snubber CircuitryImproved Light-Load EfficiencyImproved Transient ResponseComplete System-Level Protection1-A Source/1.8-A Sink Gate Drivers

Description

AI
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. 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.