1-kW High Efficiency Digital Power Factor Converter (PFC) for Telecom/Server Power & Motor Drives TIDA-00477 (ACTIVE)

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Key Document


The TIDA-00477 reference design is a continuous conduction mode boost converter implemented using TI digital power supply controller UCD3138A and with all the necessary protections built-in. TIDA-00477 PFC is designed to improve overall system performance with lower bus ripple, lower bus capacitance, and lower RMS currents than traditional PFC power supplies. In addition, the design provides precise information of the input energy consumption of the unit. Hardware is designed and tested to pass conducted emissions, surge, and EFT as per EN55014 – requirements.

  • Wide operating input range 195-VAC to 270-VAC
  • Designed to drive wide range of downstream DC/DC converters and inverter fed motors up to 1kW
  • High power factor > 0.99 and less than 5% THD from medium-to-full load (50-100%). Meets Current THD regulations as per IEC 61000-3-2
  • High efficiency of > 97% at full load over entire operating voltage range. It eliminates need for external cooling up to 55oC ambient operation for loads ≤ 850W
  • Communicates the input power consumption information of the unit precisely for all load conditions.
  • Built-in 12V/3W supply for house-keeping power needs
  • PMBUS & Isolated UART for communication
  • Meets the requirements of Conducted Emissions standard – EN55011 class A, EFT norm IEC6000-4-4, and Surge norm IEC61000-4-5
  • Power supply designed with a simple, small PCB form factor (165 x 95mm)

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Design Files

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TIDA-00477 Firmware


TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7321C  Robust EMC, Low Power, Dual-Channel 1/1 Digital Isolator, Fail-safe High  Isolation  Sample & Buy View Design Kits & Evaluation Modules
OPA2350  High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC27517A  4A/4A Single Channel High-speed Low-side Gate Driver with 5V Negative Input Voltage Handling Ability  Gate drivers  Sample & Buy Not Available
UCC28881  700-V Lowest Quiescent Current Off-Line Switcher  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCD3138064A  Highly Integrated Digital Controller for Isolated Power   Digital power  Sample & Buy View Design Kits & Evaluation Modules
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7321C Download -
OPA2350 Download Download
Download Download
Download -
TLV704 Download -
UCC27517A Download
UCC28881 Download Download
UCD3138064A Download
UCD3138A Download

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Technical Documents

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Application notes (3)
Title Type Size (KB) Date
Multiple Files   01 Apr 2014
PDF 545 26 Mar 2014
PDF 1272 26 Apr 2012
User guides (1)
Title Type Size (KB) Date
PDF 3092 08 Dec 2015
Design files (6)
Title Type Size (KB) Date
ZIP 596 18 Sep 2015
ZIP 3257 18 Sep 2015
PDF 4353 18 Sep 2015
PDF 78 18 Sep 2015
PDF 106 18 Sep 2015
PDF 769 18 Sep 2015
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
230V, 900W, PFC with 98% Efficiency for Inverter Fed Drives Reference Design  TIDA-00443  TI Designs

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