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Texas Instruments LMG3522R050 | Demoboard TIDA-010933
1.6kW, bidirectional micro inverter based on GaN reference design
Overview
| Topology | Positive to Negative Converter |
| Input voltage | 30-60 V |
| IC revision | DECEMBER 2023 |
Description
This reference design implements a four-channel 1.6-kW single-phase bidirectional micro inverter based onGaN. The reference design supports four identicalchannels with up to 60 V and ±10 A on the DC side.These channels can be connected to photovoltaic(PV) panels or to 48-V Battery Energy StorageSystems (BESS). On the High-Voltage (HV) side, thereference design is connected to a single-phase ACgrid. The reference design has Low-Voltage (LV) andHV sides isolated by means of a bidirectional fixedfrequency CLLLC converter. The control algorithm forthe reference design is implemented in C2000™ MCU.
Features
High-power densityHigh-switching frequency to enable small passive EMI filter componentsAny channel can either operate as PV input or 48V battery storageSingle chip controller with one C2000 MCU (DC/AC, DC/DC, MPPT)Good common mode isolation with Isolated DC/DC topologyLow overall system solution cost
Typical applications
- Micro inverter
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | RDC(mΩ) | fres(MHz) | Ø f(mm) | Ø ID(mm) | Ø OD(mm) | Color | Qty. | VIN | VOut1(V) | IOut1(mA) | Type of Insulation | fswitch(kHz) | ∫Udt(Vµs) | NPRI : NSEC | VT(V (AC)) | Mount | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Pitch(mm) | Ø D(mm) | Pins | Center pin Ø (Value)(mm) | Plug OD(mm) | Type | Working Voltage(V (DC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 10 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | Capacitance1 µF | Capacitance±10% | Rated Voltage10 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | Packaging Unit4000 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WCAP-ATLI Aluminum Electrolytic Capacitors, 150 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors | Capacitance150 µF | Capacitance±20% | Rated Voltage63 V (DC) | – | – | Dissipation Factor8 % | – | – | Length16 mm | – | – | – | PackagingAmmopack | – | – | – | – | – | – | – | – | – | Packaging Unit500 | – | – | – | – | – | – | – | – | – | Endurance 5000 | Ripple Current900 mA | Leakage Current94.5 µA | Pitch5 mm | Diameter10 mm | – | – | – | – | – | ||||
 | WR-DC Power Jacks, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-DC Power Jacks | – | – | – | – | Operating Temperature -40 °C up to +85 °C | – | Insulation Resistance100 MΩ | – | – | – | – | – | PackagingBag | – | Rated Current3 A | – | – | – | – | – | – | ColorBlack | – | – | – | – | – | – | – | – | – | MountTHT | – | – | – | – | – | – | Center pin Ø2 mm | Recommended Plug outer Ø5.5 mm | TypeVertical | Working Voltage30 V (DC) | |||
 | WA-SMST SMT Steel Spacer with through hole Ø 3.3, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SMST SMT Steel Spacer with through hole Ø 3.3 | – | – | – | – | Operating Temperature -55 °C up to +150 °C | – | – | – | Length1.5 mm | – | – | – | PackagingTape and Reel | – | – | – | – | – | Hole Diameter3.3 mm | Inner Diameter4.2 mm | Outer Diameter6 mm | – | Packaging Unit1200 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingBag | – | Rated Current3 A | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | MountTHT | – | – | – | Pitch2.54 mm | – | Pins2 | – | – | TypeStraight | Working Voltage250 V (DC) | |||
 | WE-LQS SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQS SMT Power Inductor | – | – | – | Size2010 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length2 mm | Width1.6 mm | Height1 mm | – | – | Inductance10 µH | Rated Current0.5 A | Saturation Current0.6 A | DC Resistance860 mΩ | Self Resonant Frequency39 MHz | – | – | – | – | Packaging Unit2000 | – | – | – | – | – | – | – | – | MountSMT | – | – | – | – | – | – | – | – | – | – | ||||
 | WE-PPTI Push-Pull Transformers, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PPTI Push-Pull Transformers | – | – | – | Size1208 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length8.3 mm | Width12.6 mm | Height4.1 mm | – | PackagingTape and Reel | Inductance86 µH | – | – | – | – | – | – | – | – | – | Input Voltage 5 V (DC) | Output Voltage 112 V | Output Current 1460 mA | Type of InsulationFunctional | Switching Frequency 400 - 700 | Voltage-µSecond9 Vµs | Turns Ratio1:2.88 | Insulation Test Voltage2500 V (AC) | MountSMT | – | – | – | – | – | – | – | – | – | – |