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STMicroelectronics VIPER26HD | Demoboard STDES-3KWTLCP Main Board
3 kW telecom rectifier reference design based on the STM32G474RBT6 digital power MCU
Overview
| Topology | Power Factor Correction |
| Output 1 | 56.2 V / 28 A |
| Output 2 | 56.2 V / 56 A |
| IC revision | 1 |
Description
The STDES-3KWTLCP is a 3 kW AC-DC converter designed for telecom rectifier applications. This type of application requires a high efficiency over the entire load range of operation and across the universal mains input voltage range.This reference design opens the path to a compact solution (up to 40 W/inch3), offering a high peak efficiency (96.3%), low THD distortion (less than 5% THD at full load), and a reduced bill of materials.The system consists of two power stages: a bridgeless totem-pole PFC controlled by an STM32G474RBT6 and an isolating regulation stage implemented with a full-bridge LLC with zero-voltage-switching (ZVS) PWM, and synchronous rectification (SR) controlled by a second STM32G474RBT6 microcontroller.The STDES-3KWTLCP also helps you to design an innovative topology with the latest ST power kit devices: silicon carbide MOSFETs, high-voltage MDmesh MOSFETs, STripFET MOSFETs, isolated FET drivers, and a VIPer converter.The STDES-3KWTLCP is a fully assembled kit developed for performance evaluation only, not available for sale.
Features
- Input voltage range: 90 to 264 VAC
- Output voltage: 53.5 V
- Maximum output power: 3 kW at 230 V, 1.5 kW at 115 VAC
- Peak efficiency: 96.3%
- Power density: 40 W/in3
- Power factor >0.98 at 100% load
- Total harmonic distortion <5% at 100% load
Typical applications
- Server Telecom
- Power/ On board
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Qmin. | DF(%) | RISO | Ceramic Type | L(mm) | Fl(mm) | Packaging | Operating Temperature | Q(%) | SW(mm) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | Pitch(mm) | Ø D(mm) | Type | Mount | PCB/Cable/Panel | W(mm) | H(mm) | IR(A) | Ti | Tl(mm) | Pins | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]570 nm | Emitting ColorBright Green | Peak Wavelength [typ.]572 nm | Luminous Intensity [typ.]40 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | – | PackagingTape and Reel | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | MountSMT | – | Width0.8 mm | Height0.7 mm | – | – | – | – | ||||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 590 nm, Yellow | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]590 nm | Emitting ColorYellow | Peak Wavelength [typ.]595 nm | Luminous Intensity [typ.]120 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | – | PackagingTape and Reel | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | MountSMT | – | Width0.8 mm | Height0.7 mm | – | – | – | – | |||
| WL-SMCW SMT Mono-color Chip LED Waterclear, 625 nm, Red | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]250 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | – | – | – | – | Length1.6 mm | – | PackagingTape and Reel | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | – | – | – | MountSMT | – | Width0.8 mm | Height0.7 mm | – | – | – | – | |||
 | WCAP-ATG5 Aluminum Electrolytic Capacitors, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | – | Capacitance220 µF | Capacitance±20% | Rated Voltage16 V (DC) | – | – | Dissipation Factor15 % | – | – | Length11 mm | – | PackagingAmmopack | – | – | – | Endurance 2000 | Ripple Current215 mA | Leakage Current35.2 µA | Pitch2.5 mm | Diameter6.3 mm | – | – | – | – | – | – | – | – | – | ||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | Capacitance22 nF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Q-Factor [1]600 | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | Width0.8 mm | Height0.8 mm | – | – | – | – | |||||
| WCAP-CSGP MLCCs 25 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | – | Capacitance1 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size0603 | Q-Factor [1]600 | Dissipation Factor10 % | Insulation Resistance0.5 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | Width0.8 mm | Height0.8 mm | – | – | – | – | |||||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | Capacitance33 nF | Capacitance±10% | Rated Voltage50 V (DC) | Size0603 | Q-Factor [1]600 | Dissipation Factor2.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Length1.6 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | – | – | – | – | – | – | – | – | – | – | Width0.8 mm | Height0.8 mm | – | – | – | – | |||||
| WCAP-CSGP MLCCs 10 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 10 V(DC) | – | – | – | – | – | – | – | Capacitance4.7 µF | Capacitance±20% | Rated Voltage10 V (DC) | Size0603 | Q-Factor [1]600 | Dissipation Factor10 % | Insulation Resistance0.02 GΩ | Ceramic TypeX5R Class II | Length1.6 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | Width0.8 mm | Height0.8 mm | – | – | – | – | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | – | – | – | – | – | – | – | Capacitance10 µF | Capacitance±20% | Rated Voltage16 V (DC) | Size0805 | Q-Factor [1]600 | Dissipation Factor10 % | Insulation Resistance0.01 GΩ | Ceramic TypeX5R Class II | Length2 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +85 °C | – | – | – | – | – | – | – | – | – | – | Width1.25 mm | Height1.25 mm | – | – | – | – | |||||
 | WR-WTB 1.50 mm Male Header, –, – | Simulation– | Downloads7 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 1.50 mm Male Header | – | – | – | – | – | – | – | – | – | – | – | – | – | Insulation Resistance100 MΩ | – | Length7.5 mm | – | PackagingBag | Operating Temperature -25 °C up to +85 °C | – | – | – | – | – | Pitch1.5 mm | – | TypeVertical | MountTHT | PCB/Cable/PanelPCB | – | – | – | – | – | Pins4 | ||
 | WR-WTB 1.25 mm Male Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-WTB 1.25 mm Male Header | – | – | – | – | – | – | – | – | – | – | – | – | – | Insulation Resistance100 MΩ | – | Length9.25 mm | – | PackagingTube | Operating Temperature -40 °C up to +85 °C | – | – | – | – | – | Pitch1.25 mm | – | TypeHorizontal | MountTHT | PCB/Cable/PanelPCB | – | – | Rated Current1 A | – | – | Pins6 | |||
 | WA-SBRII Brass Spacer Stud, metric, internal/internal, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SBRII Brass Spacer Stud, metric, internal/internal | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Length20 mm | – | PackagingCarton | Operating Temperature -55 °C up to +150 °C | – | SW5.5 mm | – | – | – | – | – | – | – | – | – | – | – | Inner ThreadM3 | – | – | |||
 | WP-THRBU REDCUBE THR with internal through-hole thread, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWP-THRBU REDCUBE THR with internal through-hole thread | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | PackagingTape and Reel | Operating Temperature -55 °C up to +150 °C | – | – | – | – | – | – | – | – | MountTHR | – | Width7 mm | Height3 mm | – | Inner ThreadM4 | Thread Length2.5 mm | Pins4 | |||
 | WCAP-CSMH Mid and High Voltage, –, – | Downloads8 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSMH Mid and High Voltage | – | – | – | – | – | – | – | Capacitance100 nF | Capacitance±10% | Rated Voltage630 V (DC) | Size1812 | – | Dissipation Factor2.5 % | Insulation Resistance1 GΩ | Ceramic TypeX7R Class II | Length4.5 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | Operating Temperature -55 °C up to +125 °C | Q-Factor600 % | – | – | – | – | – | – | – | – | – | Width3.2 mm | Height2 mm | – | – | – | – | |||
750344753 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
750344767 | Flyback Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |