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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 / 9.47 A |
| Output 3 | 380 V / 4.74 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 | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890334026034CS | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTXX Film Capacitors | Across the mains | 2.2 µF | 310 | X2 | 170 | 0.1 | 4.55 GΩ | -40 °C up to +105 °C | 22.5 | 26 | 15 | 25 | Carton | ±10% | Pitch 22.5 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Boxed THT | – | – | – | – | – | – | – | – | ||
| 890334026030 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTXX Film Capacitors | Across the mains | 1.5 µF | 310 | X2 | 140 | 0.1 | 6.67 GΩ | -40 °C up to +105 °C | 22.5 | 26 | 10 | 21 | Bulk | ±10% | Pitch 22.5 mm | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | Boxed THT | – | – | – | – | – | – | – | – | ||
 | 74438336022 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-MAPI SMT Power Inductor | – | – | – | – | – | – | – | – | – | 3 | 3 | 2 | – | – | 3020 | -40 °C up to +125 °C | – | – | – | 2.2 | 3.6 | 5.55 | 67 | 42 | 80 | SMT | – | – | – | – | – | – | – | – | ||
 | 885012206052 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | 1 µF | 16 | – | – | – | 0.1 GΩ | – | – | 1.6 | 0.8 | 0.8 | 7" Tape & Reel | ±10% | 0603 | -55 °C up to +125 °C | 10 | X7R Class II | 0.4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 760390014 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | 6.73 | 10.2 | 4.19 | Tape and Reel | – | 1006 | -40 °C up to +125 °C | – | – | – | 475 | – | – | – | – | – | SMT | 5 V (DC) | 5 | 0.6 | Functional | 300 - 620 | 11 | 1:1.3 | 2500 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890334026034CS | SPEC | |
| 890334026030 | SPEC | |
| 74438336022 | SPEC | |
| 885012206052 | SPEC | |
| 760390014 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 |
|---|