2kW, 48V to 400V, >93% Efficiency, Isolated Bidirectional DC-DC Converter Reference Design for UPS
TIDA-00951
(ACTIVE)
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Key Document
Description
The 2-kW isolated bidirectional DC-DC converter reference design (TIDA-00951) is capable of power transfer between a 400-V DC-BUS and a 12-14 cell lithium battery pack for use in UPS, battery backup and power storage applications. This reference design works as active clamped boost converter with ZVS in the backup mode, transferring power from the 48V battery to the 400V DC-BUS. Operating as a voltage fed full-bridge battery charger, this reference design enables you to achieve >93% efficiency when charging a 48V battery from the 400V DC BUS. This reference design also has built-in protection for DC BUS and battery overcurrent as well as overvoltage protection.
Features
- Digitally controlled isolated bidirectional DC/DC converter
- Operates as active clamp full bridge boost converter with ZCS turn on along with ZVS at high load for the low-voltage FET and ZVS for high-voltage switches
- Wide operating range from 36- to 60-V battery and 300- to 400-V DC bus
- Cost optimized design using 100-V FET on low-voltage side, eliminates need for paralleling multiple FETs up to 2kW
- Fast mode transfer from battery charging to back-up mode in less than 100uS
- Uses the TMS320F28033 digital controller present on the TIDA-01281 reference design for controlling the working
- High side current sensing for monitoring the battery current based on the INA240 on-board the TIDA-01141 reference design
- Uses the reinforced isolated gate-driver UCC21520 present in the TIDA-01159 design for driving the high voltage full-bridge
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Schematic/Block Diagram
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Design Guide
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Order Now
| Part Number |
Buy from Texas Instruments or Third Party |
Status |
TIDA-00951-SW:
Firmware for TIDA-00951 by Request |
|
ACTIVE
|
TI Devices (15)
Order samples, get tools and find more information on the TI products in this reference design.
| Sample & Buy |
Design Kits & Evaluation Modules |
| AMC1301 |
±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing |
Isolation |
Sample & Buy |
View Design Kits & Evaluation Modules |
| CSD19536KCS |
100V, N ch NexFET MOSFET™, single TO-220, 2.7mOhm |
MOSFETs |
Sample & Buy |
Not Available |
| INA240 |
80V, Low-/High-Side, Bi-Directional, Zero-Drift, Current Sense Amp w/Enhanced PWM Rejection |
Current sense amplifiers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| LM4041A12 |
1.2-V Precision Micropower Shunt Voltage Reference, 0.1% accuracy |
Voltage references |
Sample & Buy |
Not Available |
| OPA376 |
Precision, Low Noise, Low Iq Operational Amplifier |
Operational amplifiers (op amps) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| SN6505B |
Low-noise 1-A, 420-kHz transformer driver for isolated power supplies |
Isolation |
Sample & Buy |
View Design Kits & Evaluation Modules |
| SN74LVC126A |
Quadruple Bus Buffer Gate With 3-State Outputs |
Buffer/driver |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TLV1117 |
Single Output LDO, 800mA, Fixed and Adj., Internal Current limit, Thermal Overload Protection |
Power management |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TMP300 |
Resistor-Programmable, up to 18V-Capable Temp Switch and Analog Out Sensor |
Temperature sensors |
Sample & Buy |
Not Available |
| TMS320F28033 |
Piccolo™ 32-bit MCU with 60 MHz, 64 KB Flash, CLA |
Microcontrollers (MCU) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TPS62160 |
3V-17V 1A Step-Down Converters with DCS-Control™ |
Step-down (buck) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC21520 |
4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver |
Gate drivers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC21540 |
Reinforced Isolation Dual-Channel Gate Driver With 3.3mm Channel-to-Channel Spacing Option |
Gate drivers |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC27211A |
120-V Boot, 4-A Peak, High Frequency High-Side and Low-Side Driver |
Gate drivers |
Sample & Buy |
Not Available |
| UCC27517A |
4A/4A Single Channel High-speed Low-side Gate Driver with 5V Negative Input Voltage Handling Ability |
Gate drivers |
Sample & Buy |
Not Available |
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 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
See the Important Notice and Disclaimer covering reference designs and other TI resources.
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 3623 |
02 Jun 2017
|
Design files (6)
| | PDF | 114 |
27 Mar 2018
|
| | ZIP | 1995 |
02 Jun 2017
|
| | ZIP | 6563 |
02 Jun 2017
|
| | PDF | 1699 |
02 Jun 2017
|
| | PDF | 226 |
02 Jun 2017
|
| | PDF | 676 |
02 Jun 2017
|
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