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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| LMG3410R070 |
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Power management |
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| OPA2376 |
Dual, Precision, Low Noise, Low Quiescent Current Operational Amplifier
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Operational amplifiers (op amps) |
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| SN74LVC1G3157 |
1-channel, 2:1 analog switch |
Switches & multiplexers |
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| TLV713P |
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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 |
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| TMS320F280049 |
Piccolo™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB Flash, CLA, PGAs, SDFM |
Microcontrollers (MCU) |
Sample & Buy |
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| TPS560430 |
SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode |
Step-down (buck) |
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| UCC21540 |
Reinforced Isolation Dual-Channel Gate Driver With 3.3mm Channel-to-Channel Spacing Option |
Gate drivers |
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| UCC27524 |
Dual, 5A, High-Speed Low-Side Power MOSFET Driver |
Gate drivers |
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| UCC27714 |
High-Speed, 4-A, 600-V High-Side Low-Side Gate Driver |
Gate drivers |
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| UCC28911 |
700V Flyback Switcher with Constant-Voltage Constant-Current and Primary-side Regulation |
Offline & isolated DC/DC controllers & converters |
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CAD/CAE symbols
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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 http://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 Documents
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 2013 |
30 Sep 2019
|
Design files (6)
| | ZIP | 385 |
11 Sep 2019
|
| | ZIP | 23805 |
11 Sep 2019
|
| | PDF | 1064 |
11 Sep 2019
|
| | PDF | 490 |
11 Sep 2019
|
| | ZIP | 332 |
11 Sep 2019
|
| | ZIP | 678 |
11 Sep 2019
|
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