Startseite Energiemanagement AC/DC- und DC/DC-Controller (externer FET)
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AC/DC- und DC/DC-Controller (externer FET)

UCC2819

AKTIV

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

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Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
UCC28180 AKTIV 18 kHz-250 kHz CCM-PFC-Controller mit verbessertem Start und Transientenreaktion Enhanced transient response and startup, fewer pins, wider operating temperature range, lower startup current, audible noise minimization, enhanced dynamic fault response.

UCC2819

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Vin (max) (V) 17 Operating temperature range (°C) -40 to 85 Control mode CCM Topology Boost, PFC controller Rating Catalog Features Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage protection Duty cycle (max) (%) 100
Vin (max) (V) 17 Operating temperature range (°C) -40 to 85 Control mode CCM Topology Boost, PFC controller Rating Catalog Features Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage protection 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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* Data sheet Programmable Output Power Factor Preregulator datasheet (Rev. B) 21 Dez 2004

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