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UCC2818-EP Datasheet

Part Number UCC2818-EP
Manufacturers Texas Instruments
Logo Texas Instruments
Description BiCMOS POWER-FACTOR PREREGULATOR
Datasheet UCC2818-EP DatasheetUCC2818-EP Datasheet (PDF)

UCC2817-EP UCC2818-EP www.ti.com .. SLUS716 – DECEMBER 2008 BiCMOS POWER-FACTOR PREREGULATOR FEATURES 1 •2 Controls Boost Preregulator to Near-Unity Power Factor • Limits Line Distortion • World-Wide Line Operation • Overvoltage Protection • Accurate Power Limiting • Average Current Mode Control • Improved Noise.

  UCC2818-EP   UCC2818-EP






BiCMOS POWER-FACTOR PREREGULATOR

UCC2817-EP UCC2818-EP www.ti.com .. SLUS716 – DECEMBER 2008 BiCMOS POWER-FACTOR PREREGULATOR FEATURES 1 •2 Controls Boost Preregulator to Near-Unity Power Factor • Limits Line Distortion • World-Wide Line Operation • Overvoltage 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 • 12-V to 17-V Operation SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS • Controlled Baseline • One Assembly/Test Site • One Fabrication Site • Available in Military (–55°C/125°C) Temperature Range(1) • Extended Product Life Cycle • Extended Product-Change Notification • Product Traceability D, DW, N, or PW PACKAGE (TOP VIEW) GND PKLMT CAOUT CAI MOUT IAC VAOUT VFF 1 2 3 4 5 6 7 8 16 DRVOUT 15 VCC 14 CT 13 SS 12 RT 11 VSENSE 10 OVP/EN 9 VREF (1) Additional temperature ranges are available - contact factory DESCRIPTION/ORDERING INFORMATION The UCC2817 and UCC2818 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, .


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