TIDA-010062

1-kW, 80 Plus titanium, GaN CCM totem pole bridgeless PFC and half-bridge LLC reference design

TIDA-010062

Design files

Overview

This reference design is a digitally controlled, compact 1-kW AC/DC power supply design for server power supply unit (PSU) and telecom rectifier applications. The highly efficient design supports two main power stages, including a front-end continuous conduction mode (CCM) totem-pole bridgeless power factor correction (PFC) stage. The PFC stage features LMG341x GaN FET with integrated driver to provide enhanced efficiency across a wide load range and meet 80-plus titanium requirements. The design also supports a half-bridge LLC isolated DC/DC stage to achieve a +12-V DC output at 1-kW. Two control cards use C2000™ Piccolo™ microcontrollers to control both power stages.

Features
  • 80-plus titanium efficiency, η=>95% @ 20%-100% load
  • CCM GaN-based totem pole bridgeless PFC stage with >99% peak efficiency, enabled by LMG341x GaN FET with integrated driver
  • Half-bridge Si MOSFET LLC stage with >98% peak efficiency
  • Fast load transient, Vo change within 300-mV @ 2.5-A/us slew rate
  • Low iTHD, <10% @ 10% load, <5% @ 20% load, <2% @ >50% load
  • Power density 41 W/in3, 38 mm by 66 mm by 160 mm
  • Fast serial interface (FSI) based PFC / DC/DC communication

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.

TIDUET7D.PDF (4291 K)

Reference design overview and verified performance test data

TIDM171A.ZIP (792 K)

Detailed schematic diagram for design layout and components

TIDM172A.ZIP (355 K)

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

TIDM173.PDF (490 K)

Detailed overview of design layout for component placement

TIDM175.ZIP (23805 K)

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

TIDCFM1A.ZIP (633 K)

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

TIDM174.PDF (1064 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

TMS320F280025CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash, CLB

Data sheet document-pdfAcrobat PDF open-in-new HTML
C2000 real-time microcontrollers

TMS320F280041C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128 KB flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041C-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128 KB flash, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280045C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, CLA, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049C-Q1Automotive C2000™ 32-bit MCU w/ 100 MHz, FPU, TMU, 256 KB flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
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)

TPS560430SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Current sense amplifiers analog output

INA18026V, 350kHz current sense amplifier

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

ISO7742Robust EMC, quad-channel, 2/2, reinforced digital isolator

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

UCC28911700V Flyback switcher with constant-voltage constant-current and primary-side regulation

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
Half-bridge drivers

UCC277144-A, 600-V half bridge gate driver

Data sheet document-pdfAcrobat PDF open-in-new HTML
Hall-effect current sensors

TMCS1100Precision isolated current sensor with external reference

Data sheet document-pdfAcrobat PDF open-in-new HTML
Isolated gate drivers

UCC215405.7kVrms 4A/6A dual-channel isolated gate driver with dual inputs, DT pin & 8V UVLO in DW or DWK pkg

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

TLV713P150-mA, capacitor-free low-dropout voltage regulator with active output discharge & enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Low-side drivers

UCC275245-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD18510Q5B40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.96 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
Precision op amps (Vos<1mV)

OPA2376Dual, precision, low-noise, low quiescent current operational amplifier

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

TMP611%, 10-kΩ linear thermistor in 0402, 0603/0805 and through hole packages

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

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 4
Type Title Date
* Design guide 1-kW, 80 Plus Titanium, GaN CCM Totem Pole Bridgeless PFC and Half-Bridge LLC (Rev. D) Jan. 13, 2022
White paper 結合 TI GaN FETs 與 C2000™ 即時 MCU,實現功率密集與有效率的數位電源系統 Mar. 18, 2021
White paper TI GaN FET와 C2000™ 실시간 MCU를 결합하여 전력 밀도가 높고 효율적인 전원 시스템 달성 Mar. 18, 2021
White paper Achieve Power-Dense and Efficient Digital Power Systems by Combining TI GaN FETs Jan. 05, 2021

Related design resources

Hardware development

EVALUATION BOARD
TMDSCNCD280025C TMS320F280025C controlCARD evaluation module
DAUGHTER CARD
LMG3410-HB-EVM LMG3410R070 600-V 70-mΩ GaN half-bridge daughter card TMDSCNCD280049C F280049C controlCARD Evaluation Module

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
C2000WARE-DIGITALPOWER-SDK DigitalPower software development kit (SDK) for C2000™ MCUs

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos