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Overview
| Topology | Power Factor Correction |
| IC revision | 3.0 |
Description
The STEVAL-7BIDIRCB is a solution for a 7 kW bidirectional charger, consisting of two stages:1) bidirectional three-channel interleaved totem pole PFC working at fixed frequency in continuous conduction mode (CCM). The three-channel interleaved PFC architecture guarantees the highest efficiency in a wide load range.2) bidirectional resonant full bridge CLLC with synchronous rectification. The CLLC uses frequency modulation to regulate the output.The two stages are digitally controlled by two STM32G474RET6 microcontrollers that are mounted in a single control card.The power stage is fully composed by ST's SiC power MOSFETs, driven by STGAP SiC dedicated gate drivers with galvanic isolation. Thanks to a modular system architecture in combination with the HU3PAK package, a power density of 4 kW/l is achieved.The PFC operates at a switching frequency of 65 kHz and the CLLC operates at variable frequency from 130 kHz to 350 kHz.Thanks to the excellent switching performance of the SiC GEN3 and its Rds(on) temperature stability, a peak efficiency of 97.1 % is achieved in charger mode.The solution is also suitable to implement a solar integrated ESS, thanks to provision for MPPT stage connection.
Features
Open-frame power density: 4 kW/l (66 W/inch3)Cooling: natural air convection
Typical applications
- Battery Storage Systems for Home, On Board Charger (OBC)
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | Size | Operating Temperature | Q(%) | DF(%) | RISO | Ceramic Type | Fl(mm) | Packaging | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | κ(W/(m*K)) | Reinforced | Color | Description Long | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Pitch(mm) | Ø D(mm) | Pins | G(mm) | Working Voltage(V (AC)) | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | IR(mA) | L(mH) | VR(V (DC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 100 V(DC), 150 pF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 100 V(DC) | Capacitance150 pF | Capacitance±10% | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage100 V (DC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 1 nF, ±5% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance1 nF | Capacitance±5% | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | – | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage25 V (DC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance100 nF | Capacitance±10% | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3.5 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage25 V (DC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance100 nF | Capacitance±10% | Size0603 | Operating Temperature -55 °C up to +125 °C | – | Dissipation Factor3 % | Insulation Resistance5 GΩ | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage50 V (DC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | |||||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, 470 µF, ±20% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | Capacitance470 µF | Capacitance±20% | – | – | – | Dissipation Factor12 % | – | – | – | PackagingAmmopack | – | – | – | – | – | – | – | – | – | Endurance 2000 | Ripple Current520 mA | Leakage Current164.5 µA | Pitch5 mm | Diameter10 mm | – | – | – | – | – | – | – | – | – | – | – | Rated Voltage35 V (DC) | – | – | Length16 mm | – | – | – | ||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | – | Size0603 | Operating Temperature -55 °C up to +125 °C | – | – | – | – | Pad Dimension0.3 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Impedance @ 100 MHz470 Ω | Maximum Impedance700 Ω | Maximum Impedance250 MHz | Rated Current 2730 mA | DC Resistance0.35 Ω | TypeHigh Speed | Rated Current400 mA | – | – | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | MountSMT | ||||
 | WE-CMBNC Common Mode Power Line Choke Nanocrystalline, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMBNC Common Mode Power Line Choke Nanocrystalline | – | – | SizeXL | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Pins4 | Pin length5 mm | – | – | – | – | – | DC Resistance0.0011 Ω | – | Rated Current32000 mA | Inductance0.9 mH | Rated Voltage300 V (DC) | Insulation Test Voltage2100 V (AC) | MaterialNanocrystalline | Length37 mm | Width23 mm | Height34 mm | MountTHT | ||||
 | WE-MAPI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | – | – | Size3020 | Operating Temperature -40 up to +125 | – | – | – | – | – | – | Performance Rated Current2.4 A | Saturation Current @ 30%5.15 A | DC Resistance137 mΩ | Self Resonant Frequency30 MHz | Operating Voltage80 V | – | – | – | – | – | – | – | – | – | Pins2 | – | – | – | – | – | – | DC Resistance0.158 Ω | – | Rated Current1900 mA | Inductance0.0047 mH | – | – | – | Length3 mm | Width3 mm | Height2 mm | MountSMT | ||||
 | WR-PHD Socket Header - Single, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Socket Header - Single | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | Insulation Resistance1000 MΩ | – | – | PackagingTray | – | – | – | – | – | – | – | – | – | – | – | – | Pitch2.54 mm | – | Pins8 | – | Working Voltage250 V (AC) | – | – | – | – | – | TypeStraight | Rated Current3000 mA | – | – | – | – | Length20.82 mm | – | – | MountTHT | ||
 | WE-TINS Thermally Conductive Insulator Pad, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TINS Thermally Conductive Insulator Pad | – | – | – | Operating Temperature -60 °C up to +200 °C | – | – | – | – | – | – | – | – | – | – | – | Thermal Conductivity1.6 W/(m*K) | Reinforcedglass fiber | ColorMaroon | Description Long Square | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length300 mm | Width300 mm | Height0.23 mm | – | |||
 | WE-TGF Thermal Gap Filler Pad, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TGF Thermal Gap Filler Pad | – | – | – | Operating Temperature -50 °C up to +150 °C | – | – | – | – | – | – | – | – | – | – | – | Thermal Conductivity6 W/(m*K) | ReinforcedNo | ColorGrey | Description Long Rectangle | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length200 mm | Width400 mm | Height0.5 mm | – |