98.6% Efficiency, 6.6-kW Totem-Pole PFC Reference Design for HEV/EV Onboard Charger
TIDA-01604
(ACTIVE)
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Key Document
Description
This reference design functions from a base of silicon carbide (SiC) MOSFETs that are driven by a C2000 microcontroller (MCU) with SiC-isolated gate drivers. The design implements three-phase interleaving and operates in continuous conduction mode (CCM) to achieve a 98.46% efficiency at a 240-V input voltage and 6.6-kW full power. The C2000 controller enables phase shedding and adaptive dead-time control to improve the power factor at light load. The gate driver board (see TIDA-01605) is capable of delivering a 4-A source and 6-A sink peak current. The gate driver board implements a reinforced isolation and can withstand more than 100-V/ns common-mode transient immunity (CMTI). The gate driver board also contains the two-level turnoff circuit, which protects the MOSFET from voltage overshoot during the short-circuit scenario.
Features
- High-power-density, high-efficiency PFC design to power systems up to 6.6 kW
- Half-bridge- and compact isolated gate driver with reinforced isolation and two-level turnoff protection
- Full digital control with high-performance C2000™ controller to enable advanced control scheme
- 98.46% peak efficiency, greater than 0.99 power factor and less than 2% total harmonic distortion (THD)
- Three-phase interleaved operation with phase shedding control
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Schematic/Block Diagram
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Design Guide
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TI Devices (8)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| ISO7731-Q1 |
High Speed, Robust EMC Triple-Channel Digital Isolators |
Isolation |
Sample & Buy |
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| OPA2376-Q1 |
Low Noise, Low Quiescent Current, Precision Operational Amplifier e-trim/trade |
Operational amplifiers (op amps) |
Sample & Buy |
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| SN74LVC1G3157 |
1-channel, 2:1 analog switch |
Switches & multiplexers |
Sample & Buy |
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| TL1963A-Q1 |
Auto Catalog Single Output LDO, 1.5A, Adj. (1.21V to 20V), Fast Transient Response |
Power management |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TLV713P-Q1 |
Automotive Capacitor-Free 150mA Low-Dropout (LDO) Regulator With Foldback Current Limit |
Power management |
Sample & Buy |
Not Available |
| TMS320F280049 |
Piccolo™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB Flash, CLA, PGAs, SDFM |
Microcontrollers (MCU) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC21520-Q1 |
Automotive 4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver |
Gate drivers |
Sample & Buy |
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| UCC28700-Q1 |
Compact primary-side regulation PWM controller with automotive grade |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
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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.
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Technical Documents
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Application notes (1)
| Title | Type | Size (KB) | Date |
| | PDF | 100 |
26 Apr 2017
|
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 4892 |
27 Aug 2018
|
White papers (1)
| Title | Type | Size (KB) | Date |
| | PDF | 1217 |
27 Jul 2018
|
Design files (6)
| | PDF | 421 |
27 Aug 2018
|
| | ZIP | 2820 |
27 Aug 2018
|
| | PDF | 73 |
27 Aug 2018
|
| | ZIP | 890 |
01 Mar 2018
|
| | PDF | 2654 |
01 Mar 2018
|
| | PDF | 335 |
01 Mar 2018
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