650W Power Stage Without Heat Sink Reference Design for Low-Frequency Offline UPS and Inverters
TIDA-01292
(ACTIVE)
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Key Document
Description
This reference design is a 650-W inverter power stage designed for low-frequency (transformer-based), single-phase UPS operating from a 12-V battery. The design enables low form factor and high-efficiency implementation, taking advantage of the TI SMD MOSFET in a SON5x6 package with very low RDS(on) and low gate charge (Qg). Using two devices in parallel for each leg of the full-bridge power stage, the power stage eliminates the need of a heat sink, which reduces overall system cost.
Features
- Designed for standby or offline UPS from 100 VA to 850 VA; can be extended up to 1.5 kVA with additional FETs in parallel
- Solution with SMD MOSFETs enhances manufacturability and assembly of UPS
- No heat sink for power dissipation reduces system cost and production time
- Tested and validated for 100-W to 650-W operation with bulb loads
- Typical efficiency of ≈95%, maximum efficiency of >98.5%
- Protections for overcurrent, short circuit, overvoltage, and undervoltage
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Schematic/Block Diagram
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Design Guide
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TI Devices (6)
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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.
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Technical Documents
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Datasheet (1)
| Title | Type | Size (KB) | Date |
| | PDF | 490 |
06 Apr 2017
|
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 3205 |
25 Jun 2019
|
Design files (6)
| | ZIP | 453 |
22 Sep 2017
|
| | ZIP | 2509 |
22 Sep 2017
|
| | PDF | 2041 |
22 Sep 2017
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| | PDF | 238 |
22 Sep 2017
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| | PDF | 103 |
22 Sep 2017
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| | PDF | 439 |
22 Sep 2017
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