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Texas Instruments LMG3522 | Demoboard PMP23069
3.6-kW single-phase totem-pole bridgeless PFC reference design with a > 180-W/in³ power density
Overview
| Topology | Power Factor Correction |
| Input voltage | 85-265 V |
| Output 1 | 5 V / 0.4 A |
| Output 2 | 380 V / 4.74 A |
| Output 3 | 380 V / 9.47 A |
Description
This reference design is a GaN-based 3.6-kW single-phase continuous conduction mode (CCM) totem-pole power factor correction (PFC) converter targeting maximum power density. The power stage is followed by a baby boost converter, which helps to greatly reduce the size of the bulk capacitor. The LMG3522 top-side cooled GaN with integrated driver and protection enables higher efficiency and reduces power supply size and complexity. The F28004x or F28002x C2000 controller is used for all the advanced controls, including fast relay control, baby boost operation during AC drop-out event, reverse current flow protection and communication between PFC and house keeping controller. The PFC operates at a switching frequency of 65 kHz and achieves peak efficiency of 98.7%.
Features
180W/in³ power density in an x-y dimension of less than 68-mm x 121-mm space and maximum height of 32 mm
- Peak efficiency of 98.7%
- Semiconductor relay increases power density and reliability
- GaN optimized with driver integratio
Typical applications
- Digital controlled industrial AC/DC, Network PSU with 48V output, Server PSU with 12V output & digital control (>1kW), Single digital controller with primary side control
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 | Tol. C | Size | Operating Temperature | DF(%) | Ceramic Type | Fl(mm) | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | VIN | VOut1(V (DC)) | IOut1(A) | Type of Insulation | fswitch(kHz) | ∫Udt(Vµs) | NPRI : NSEC | VT(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTXX Film Capacitors, Across the mains, 2.2 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance2.2 µF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise170 V/µs | Dissipation Factor0.1 % | Insulation Resistance4.55 GΩ | Pitch22.5 mm | Length26 mm | Width15 mm | Height25 mm | PackagingCarton | Capacitance±10% | SizePitch 22.5 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | MountBoxed THT | – | – | – | – | – | – | – | – | ||||
| WCAP-FTXX Film Capacitors, Across the mains, 1.5 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTXX Film Capacitors | Capacitance1.5 µF | Rated Voltage310 V (AC) | Safety ClassX2 | Rate of Voltage Rise140 V/µs | Dissipation Factor0.1 % | Insulation Resistance6.67 GΩ | Pitch22.5 mm | Length26 mm | Width10 mm | Height21 mm | PackagingBulk | Capacitance±10% | SizePitch 22.5 mm | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | MountBoxed THT | – | – | – | – | – | – | – | – | ||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | – | – | – | – | – | Length3 mm | Width3 mm | Height2 mm | – | – | Size3020 | Operating Temperature -40 °C up to +125 °C | – | – | – | Inductance2.2 µH | Performance Rated Current3.6 A | Saturation Current @ 30%5.55 A | DC Resistance67 mΩ | Self Resonant Frequency42 MHz | Operating Voltage80 V | MountSMT | – | – | – | – | – | – | – | – | ||||
| WCAP-CSGP MLCCs 16 V(DC), –, 1 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance1 µF | Rated Voltage16 V (AC) | – | – | – | Insulation Resistance0.1 GΩ | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | Packaging7" Tape & Reel | Capacitance±10% | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-PPTI Push-Pull Transformers, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | Length6.73 mm | Width10.2 mm | Height4.19 mm | PackagingTape and Reel | – | Size1006 | Operating Temperature -40 °C up to +125 °C | – | – | – | Inductance475 µH | – | – | – | – | – | MountSMT | Input Voltage 5 V (DC) | Output Voltage 15 V (DC) | Output Current 10.6 A | Type of InsulationFunctional | Switching Frequency 300 - 620 | Voltage-µSecond11 Vµs | Turns Ratio1:1.3 | Insulation Test Voltage2500 V (AC) |