Three-channel interleaved CCM PFC digital controller

The STNRGPF01 is a digital controller designed specifically for interleaved PFC boost topologies and intended for use in high power applications.

The controller is capable of driving up to 3 interleaved channels, generating the proper signals in each condition. Moreover, it implements a flexible phase shedding strategy that enables the correct number of PFC channels based on the actual load condition. With this function, the STNRGPF01 is always able to guarantee the highest power efficiency across a wide range of load current requirements.

The device works in CCM at fixed frequency with average current mode control, and implements mixed signal (analog/digital) control. The inner current loop is performed by hardware, ensuring cycle-by-cycle regulation. The outer voltage loop is performed by a digital PI controller with fast dynamic response.

The controller implements several functions: inrush current control, soft start-up, burst mode cooling management and status indicators.

It also features a full set of embedded protections against overvoltage, overcurrent, and thermal faults.

The STNRGPF01 is configured through a visual dedicated software tool (eDesignSuite) to match a wide range of specific applications. Using eDesignSuite, the user can customize the PFC conversion configuration and all the relevant electrical components. As a result, the tool will automatically generate a full schematic which includes a complete list of material and the final binary object code (FW) to be downloaded to the STNRGPF01.

Key Features

  • Interleaved boost PFC
  • Up to 3 interleaved channels
  • CCM, fixed frequency
  • Average current control, cycle-by-cycle
  • Inrush current control
  • Burst mode support
  • Overcurrent and thermal protection
  • Soft start-up
  • Flexible phase-shedding strategy
    • High operating frequency with small PFC inductor, suitable for high power-density applications
    • Low ripple current (input/output)
    • Simpler integration with other applications
  • Flexible design customization to meet specific customer needs
  • Firmware
    • Turnkey solution for quick design
    • eDesign Suite graphical user interface (GUI) for application configuration
  • Embedded memory data retention 15 years with ECC
  • Communication interfaces
    • UART asynchronous protocol for bootloader support
  • Operating temperature: -40 °C to 105 °C


Technical Documentation

Product Specifications
Description Version Size
DS12046 DS12046: Three-channel interleaved CCM PFC digital controller 2.0 1 MB
Application Notes
Description Version Size
AN4026 AN4026: 19 V - 90 W adapter with PFC for laptop computers using the L6563H and L6699 1.2 988 KB
Reference Manuals
Description Version Size
RM0446 RM0446: STNRGPF01 digital controller for interleaved PFC 1.0 3 MB

Presentations & Training Material

Description Version Size
Power Factor Corrector controllers portfolio 1 MB

Publications and Collaterals

Description Version Size
STNRGPF01 - Shift into high gear with digital power 1.0 714 KB
Description Version Size
Brochure Power management guide 09.2017 3 MB
Magazine Articles
Description Version Size
Digital Controller Eases Design Of Interleaved PFC For Multi-kilowatt Converters by Rosario Attanasio, Giuseppe Di Caro, Sebastiano Messina, and Marco Torrisi, STMicroelectronics, Schaumburg, Ill and Catania, Italy 1.0 1 MB

Tools and Software

Embedded Software
Evaluation Tool Software
Evaluation Tools
Solution Evaluation Tools
eDesignSuite Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STNRGPF01TR TSSOP 38 Tape And Reel Active 3.5 1000 NEC EAR99 MALAYSIA MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STNRGPF01TR ActiveTSSOP 38IndustrialEcopack2
STNRGPF01 ActiveTSSOP 38IndustrialEcopack2

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.