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reference designLMG3522R050 | Demoboard TIDA-010933

Texas Instruments LMG3522R050 | Demoboard TIDA-010933

1.6kW, bidirectional micro inverter based on GaN reference design

Overview

TopologyPositive to Negative Converter
Input voltage30-60 V
IC revisionDECEMBER 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

Parts approved by Texas Instruments

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Order Code
Data­sheet
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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(mm)
Plug OD(mm)
Type
Working Voltage(V (DC))
SamplesAvailability & Sample
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885012206026
SPECWCAP-CSGP MLCCs 10 V(DC), 1 µF, ±10%
Simu­lation
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction 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 
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Packaging Unit4000 
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860080775016
SPECWCAP-ATLI Aluminum Electrolytic Capacitors, 150 µF, ±20%
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors
Capacitance150 µF
Capacitance±20% 
Rated Voltage63 V (DC)
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Dissipation Factor8 %
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Length16 mm
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PackagingAmmopack 
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Packaging Unit500 
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Endurance 5000
Ripple Current900 mA
Leakage Current94.5 µA
Pitch5 mm
Diameter10 mm
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694106402002
SPECWR-DC Power Jacks, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-DC Power Jacks
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Operating Temperature -40 °C up to +85 °C
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Insulation Resistance100 MΩ
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PackagingBag 
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Rated Current3 A
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ColorBlack 
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MountTHT 
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Center pin Ø2 mm
Recommended Plug outer Ø5.5 mm
TypeVertical 
Working Voltage30 V (DC)
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9774015960R
SPECWA-SMST SMT Steel Spacer with through hole Ø 3.3, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SMST SMT Steel Spacer with through hole Ø 3.3
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Operating Temperature -55 °C up to +150 °C
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Length1.5 mm
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PackagingTape and Reel 
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Hole Diameter3.3 mm
Inner Diameter4.2 mm
Outer Diameter6 mm
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Packaging Unit1200 
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61300211121
SPECWR-PHD Pin Header - Single, –, –
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Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length5.08 mm
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PackagingBag 
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Rated Current3 A
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MountTHT 
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Pitch2.54 mm
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Pins2 
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TypeStraight 
Working Voltage250 V (DC)
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74404020100
SPECWE-LQS SMT Power Inductor, –, –
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-LQS SMT Power Inductor
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Size2010 
Operating Temperature -40 °C up to +125 °C
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Length2 mm
Width1.6 mm
Height1 mm
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Inductance10 µH
Rated Current0.5 A
Saturation Current0.6 A
DC Resistance860 mΩ
Self Resonant Frequency39 MHz
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Packaging Unit2000 
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MountSMT 
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750316819
SPECWE-PPTI Push-Pull Transformers, –, –

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation–
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
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Size1208 
Operating Temperature -40 °C up to +125 °C
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Length8.3 mm
Width12.6 mm
Height4.1 mm
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PackagingTape and Reel 
Inductance86 µH
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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 
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