1. Products
  2. Power Monitor, Control, and Protection
  3. Power Control
  4. Offline Power Factor Correction (PFC) Controllers
  5. ADP1047


Features and Benefits

  • Flexible digital power factor correction (PFC) controller
  • Single phase operation (ADP1047); interleaved and bridgeless operation (ADP1048)
  • True rms ac power metering
  • Enhanced dynamic response:
  • Optimized light load efficiency performance
    Output voltage adjustment
    Frequency reduction
  • Inrush current control
  • Switching frequency spread spectrum for improved EMI
  • External frequency synchronization
  • PMBus compliant:
    Programmable ac line fault detection and protection
    Programmable output fault detection and protection
  • Extensive fault protection for high reliability systems
  • Frequency range from 30 kHz to 400 kHz
  • 8 kB EEPROM
  • Programming via easy-to-use graphical user interface (GUI)

Product Details

The ADP1047 / ADP1048are digital power factor correction (PFC) controllers that provide accurate input power metering capability and inrush current control for ac/dc systems. The ADP1047 is designed for single phase PFC applications; the ADP1048 is designed especially for interleaved and bridgeless PFC applications.

The digital PFC function is based on a conventional boost PFC with multiplication of the output voltage feedback combined with the input current and voltage to provide optimum harmonic correction and power factor for ac/dc systems. All signals are converted into the digital domain to provide maximum flexibility; all key parameters can be reported and adjusted via the PMBus interface. The ADP1047 / ADP1048 allow users to optimize system performance, maximize efficiency across the load range, and reduce design time to market.

The ADP1047 / ADP1048 provide accurate rms measurement of input voltage, current, and power. This information can be reported to the microcontroller of the power supply via the PMBus interface.


  • AC/DC power supplies for applications:
    Computing Server & Storage
    Network and communication infrastructure
    Industrial and Medical

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (3)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADP1047ARQZ-R7 Material Declaration Reliability Data 24-Lead QSOP
Wafer Fabrication Data

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.