99% Efficient 1kW GaN-based CCM Totem-pole Power Factor Correction (PFC) Converter Reference Design PMP20873 (ACTIVE)

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Key Document

Description

Continuous-Conduction-Mode (CCM) Totem-pole power factor correction (PFC) is a simple but efficient power converter.  To achieve 99% efficiency, there are many design details that need to be taken into account.  The PMP20873 reference design uses TI’s 600VGaN  power stage, LMG3410, and TI’s UCD3138 digital controller.  The design overview provides more details on the CCM Totem-Pole topology operation, gives the detail design considerations of the circuit, and provides magnetics and firmware control design considerations. This converter design operates at 100KHz. A soft start at AC line crossover minimizes current spike and lowers THD.  The PFC Firmware measures AC current and PFC output voltage in real-time and predicts the dead time needed for the switch node to complete a full swing. The adaptive dead time control effectively minimizes both switching loss and GaN FET body diode conduction loss. A GUI is available to support parameter setting and control loop tuning.

Features
  • 1kW, 99% efficiency at 100kHZ and 230V (Power derates to 600W for 115V long time operation)
  • TI’s LMG3410 GaN power stage with an integrated driver ensures circuit reliability and eases design
  • OCP, OTP and OVP with adjustable switching node dv/dt setting
  • Full digital control
  • Adaptive deadtime control and low AC crossover current distortion
  • GUI available for PFC parameter setting and control loop tuning

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP20873.1
(Output Voltage 1)
Vin (Min) (V)108
Vin (Max) (V)305
Vout (Nom) (V)385
Iout (Max) (A)2.6
Output Power (W)1001
Isolated/Non-IsolatedNon-Isolated
Input TypeAC
TopologyBoost- CCM

TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7831  High-immunity, 100-Mbps, 5.7-kVRMS reinforced triple-channel 2/1 digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LMG3410R070  600-V 70mΩ GaN with integrated driver and protection  Gallium nitride (GaN)  Sample & Buy View Design Kits & Evaluation Modules
LP2986  Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator  Power management  Sample & Buy Not Available
SN74LVC1G3157  1-channel, 2:1 analog switch  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TLV431A  1% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
TPS62153  3–17V 1A Step-Down Converter in 3x3 QFN package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC27714  High-Speed, 4-A, 600-V High-Side Low-Side Gate Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC28740  Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCD3138  Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs  Digital power  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7831 Download -
SOIC (DWW)| 16 Download
LMG3410R070 Download -
LP2986 Download -
Download -
Download -
SN74LVC1G3157 Download Download
Download Download
Download Download
Download Download
Download Download
Download -
Download -
Download -
TLV431A Download Download
Download Download
Download -
Download Download
Download -
Download Download
TPS62153 Download Download
UCC27714 Download -
UCC28740 Download Download
UCD3138 Download
Download
Download Download
Download

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 2243 12 Jun 2017
Design files (12)
Title Type Size (KB) Date
ZIP 1096 12 Jun 2017
ZIP 2986 12 Jun 2017
ZIP 164 12 Jun 2017
ZIP 2857 12 Jun 2017
PDF 126 12 Jun 2017
PDF 2522 12 Jun 2017
PDF 29 12 Jun 2017
PDF 316 12 Jun 2017
PDF 94 12 Jun 2017
PDF 116 12 Jun 2017
PDF 61 12 Jun 2017
PDF 451 12 Jun 2017
Related Tools & Software

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
LMG3410R070 daughter card  LMG3410-HB-EVM  Evaluation Modules & Boards 

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