UCC2819

AKTIV

6 kHz–220 kHz CCM-PFC-Controller mit 10,2 V/9,7 V UVLO, -40° bis 85° Celsius

Produktdetails

Vin (max) (V) 17 Operating temperature range (°C) -40 to 85 Control mode CCM Topology Boost Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 17 Operating temperature range (°C) -40 to 85 Control mode CCM Topology Boost Rating Catalog Duty cycle (max) (%) 100
SOIC (D) 16 59.4 mm² 9.9 x 6
  • Controls Boost Preregulator to Near-Unity Power Factor
  • World Wide Line Operation
  • Over-Voltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 10.8-V to 17-V Operation
  • Programmable Output Voltage (Tracking Boost Topology)

  • Controls Boost Preregulator to Near-Unity Power Factor
  • World Wide Line Operation
  • Over-Voltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 10.8-V to 17-V Operation
  • Programmable Output Voltage (Tracking Boost Topology)

The UCC2819/UCC3819 provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC3819 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.

The UCC3819 allows the output voltage to be programmed by bringing out the error amplifier noninverting input.

Available in the 16-pin D, DW, N, and PW packages.

The UCC2819/UCC3819 provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC3819 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.

The UCC3819 allows the output voltage to be programmed by bringing out the error amplifier noninverting input.

Available in the 16-pin D, DW, N, and PW packages.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet Programmable Output Power Factor Preregulator datasheet (Rev. B) 21 Dez 2004
Application note Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C) 13 Apr 2011
Application note Startup Current transient of the Leading Edge Triggered PFC Controllers 30 Jun 2004
Application note AC Requirements for Power Factor Correction Circuits 28 Mär 2002
Application note DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A) 06 Nov 2001

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

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SOIC (D) 16 Optionen anzeigen

Bestellen & Qualität

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