Texas Instruments TIDA-010203

Description

This reference design is a 4-kW CCM totem-pole PFC with F280049/F280025 control card and LMG342x EVM board. This design demos a robust PFC solution, which avoids isolated current sense by putting the controller's ground in the middle of a MOSFET leg. Benefitting from non-isolation, AC current sense can be implemented by high-speed amplifier OPA607, helping to realize reliable over-current protection. In this design, efficiency, thermal image, AC drop, lighting surge and EMI CE are fully validated. With completed test data, this reference design shows the maturity of totem-pole PFC with C2000 and GaN and is a good study platform for high efficiency products' PFC stage design.

Features

• Maximum power: 4000-W @ 200-V to 277-V nominal
• Peak efficiency: >= 99.1% ; power factor : ~0.999-Current sensing by non-isolated high-speed amplifier
• Single phase CCM totem pole with TI Gen2 daughter card
• Compatible with TMS320F28004x/F28002x digital controllers
• FSI communication port included

Typical applications

• Air conditioner outdoor unit
• Network PSU with 48V output, Server PSU with 12V output & digital control (<=1kW), Server PSU with 12V output & digital control (>1kW)
• Industrial, Dual digital controllers for primary & secondary side control, Single digital controller with primary side control

More information

• IC product information