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Texas Instruments UCC28740/SN6505B | Demoboard TIDA-010203
4-kW single-phase totem pole PFC reference design with C2000 and GaN
Overview
| Topology | Other Topology |
| Input voltage | 200-277 V |
| Output 1 | 400 V / 10 A |
| IC revision | A |
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
- Merchant network & server PSU, Merchant telecom rectifiers
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (AC)) | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | L(mm) | W(mm) | H(mm) | Packaging | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | VIN | VOut1(V) | IOut1(A) | Type of Insulation | fswitch(kHz) | ∫Udt(Vµs) | NPRI : NSEC | VT(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Film Capacitors, Across the mains, 1.2 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance1.2 µF | Rated Voltage275 V (AC) | Safety ClassX2 | Rate of Voltage Rise130 V/µs | Dissipation Factor0.1 % | Insulation Resistance8.33 GΩ | Pitch27.5 mm | Length31 mm | Width13 mm | Height22 mm | PackagingBulk | – | – | – | – | – | – | MountBoxed THT | – | – | – | – | – | – | – | – | ||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | – | – | – | – | – | Length2.5 mm | Width2 mm | Height1 mm | – | Inductance10 µH | Performance Rated Current0.9 A | Saturation Current @ 30%1.7 A | DC Resistance733 mΩ | Self Resonant Frequency25 MHz | Operating Voltage80 V | MountSMT | – | – | – | – | – | – | – | – | ||||
 | WE-PPTI Push-Pull Transformers, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | Length8.3 mm | Width12.6 mm | Height4.1 mm | PackagingTape and Reel | Inductance72 µH | – | – | – | – | – | MountSMT | Input Voltage 4.5 - 5.5 V (DC) | Output Voltage 15 V | Output Current 11 A | Type of InsulationFunctional | Switching Frequency 400 - 700 | Voltage-µSecond8.6 Vµs | Turns Ratio1:1.1 | Insulation Test Voltage2500 V (AC) | |||
750344721 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |