1-kW, 80 Plus titanium, GaN CCM totem pole bridgeless PFC and half-bridge LLC reference design
TIDA-010062
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Key Document
Description
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 300mV @ 2.5A/us slew rate
- Low iTHD, <10%@10% load, <5% @ 20% load, <2% @ >50% load
- Power density 41W/in3, 38-mm by 66-mm by 160-mm
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What's Included
Not Included
- Daughter card for LMG3410-HB-EVM
- Daughter card for TMDSCNCD280049C
Schematic/Block Diagram
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Design Guide
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TI Devices (15)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| CSD18510Q5B |
40V, N ch NexFET MOSFET™, single SON5x6, 0.96mOhm |
MOSFETs |
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| INA180 |
26V, 350kHz current sense amplifier |
Current sense amplifiers |
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| ISO7742 |
Robust EMC, quad-channel, 2/2, reinforced digital isolator |
Isolation |
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| LMG3410R070 |
600-V 70mΩ GaN with integrated driver and protection |
Power management |
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| OPA2376 |
Dual, Precision, Low Noise, Low Quiescent Current Operational Amplifier
|
Operational amplifiers (op amps) |
Sample & Buy |
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| SN74LVC1G3157 |
5-V, 2:1 (SPDT), 1-channel general-purpose analog switch |
Switches & multiplexers |
Sample & Buy |
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| TLV713P |
150-mA, capacitor-free low-dropout voltage regulator with active output discharge & enable |
Power management |
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| TMCS1100 |
Precision isolated current sensor with external reference |
Magnetic sensors |
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| TMP61 |
±1% tolerance 10kΩ linear thermistor available in 0402 and 0603 package options |
Temperature sensors |
Sample & Buy |
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| TMS320F280049 |
C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB Flash, CLA, PGAs, SDFM |
Microcontrollers (MCU) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TPS560430 |
SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode |
Step-down (buck) regulators |
Sample & Buy |
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| UCC21540 |
4-A/6-A, 5.7-kVRMS dual-channel isolated gate driver with 8-V UVLO, dual input |
Gate drivers |
Sample & Buy |
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| UCC27524 |
5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching |
Gate drivers |
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| UCC27714 |
4-A, 600-V half bridge gate driver |
Gate drivers |
Sample & Buy |
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| UCC28911 |
700V Flyback switcher with constant-voltage constant-current and primary-side regulation |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
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CAD/CAE symbols
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Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
You can always access the complete CAD/CAE Symbols database at https://webench.ti.com/cad/
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
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Technical documentation
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 2013 |
30 Sep 2019
|
Design files (6)
| | ZIP | 355 |
19 Mar 2020
|
| | ZIP | 792 |
18 Mar 2020
|
| | ZIP | 385 |
11 Sep 2019
|
| | ZIP | 23805 |
11 Sep 2019
|
| | PDF | 1064 |
11 Sep 2019
|
| | PDF | 490 |
11 Sep 2019
|
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