PMP20873

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

PMP20873

Design files

Overview

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
Output voltage options PMP20873.1
Vin (Min) (V) 108
Vin (Max) (V) 305
Vout (Nom) (V) 385
Iout (Max) (A) 2.6
Output Power (W) 1001
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Boost- CCM

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUDA5.PDF (2312 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRRC9.PDF (451 K)

Detailed schematic diagram for design layout and components

TIDRRD0.PDF (61 K)

Detailed schematic diagram for design layout and components

TIDRRD1B.PDF (113 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRRD2.PDF (94 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRRD3.PDF (316 K)

Detailed overview of design layout for component placement

TIDRRD4.PDF (29 K)

Detailed overview of design layout for component placement

TIDRRD7.ZIP (2857 K)

Files used for 3D models or 2D drawings of IC components

TIDRRD8.ZIP (164 K)

Files used for 3D models or 2D drawings of IC components

TIDCDJ2.ZIP (2986 K)

Design file that contains information on physical board layer of design PCB

TIDCDJ3.ZIP (1096 K)

Design file that contains information on physical board layer of design PCB

TIDRRD5.PDF (2522 K)

PCB layer plot file used for generating PCB design layout

TIDRRD6.PDF (126 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Analog switches & muxes

SN74LVC1G31575-V, 2:1 (SPDT), 1-channel general-purpose analog switch

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS621533–17V 1A Step-Down Converter in 3x3 QFN package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital isolators

ISO7831Highest isolation rating, triple-channel, 2/1, reinforced digital isolator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital power isolated controllers

UCD3138Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs

Data sheet document-pdfAcrobat PDF open-in-new HTML
Flyback controllers

UCC28740Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3410R070600-V 70mΩ GaN with integrated driver and protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3411R050600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3411R070600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Half-bridge drivers

UCC277144-A, 600-V half bridge gate driver

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LP2986200-mA, 16-V, low-dropout voltage regulator with adjustable or fixed voltage configuration

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TLV431A1% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Test report PMP20873 Test Results Jun. 12, 2017
Technical article GaN reliability standards reach milestone Sep. 18, 2017
Technical article The power to innovate industrial design Mar. 27, 2017
Technical article The power to do even more with GaN Mar. 25, 2017

Related design resources

Hardware development

DAUGHTER CARD
LMG3410-HB-EVM LMG3410R070 600-V 70-mΩ GaN half-bridge daughter card

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