3 kW Full Bridge LLC resonant digital power supply evaluation kit

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  • The STEVAL-DPSLLCK1 is a digitally controlled 3 kW full bridge LLC resonant DC-DC converter with output synchronous rectification. The kit consists of a power board, digital control board, adapter board, and firmware modules.

    The full bridge primary section of the LLC converter is based on MDmesh DM2 Power MOSFETs for high efficiency performance. The PWM switching frequency is digitally controlled to regulate the output voltage. The converter operates at near resonant frequencies to maximize efficiency and achieve Zero Voltage Switching (ZVS) over the entire operating range.
    The HF transformer provides galvanic isolation and magnetic integration of the inductive elements for a compact design.
    Synchronous rectification (SR) with STripFET F7 Power MOSFETs is employed on the secondary side to reduce conduction losses.
    The STM32F334 microcontroller on the digital control board embeds a high resolution timer for finer regulation and can communicate status information via USART, CAN, SMBus, and opto-coupled serial communication.
    Both the primary and secondary sections are supplied by an off-line flyback circuit based on VIPer27HD which provides regulated voltages to the control board, the gate driver ICs and the signal conditioning circuits.
    You can connect a PFC to the power board and extend communication and interfacing with the supplied adapter board.

    Key Features

    • Power ratings:
      • input DC voltage: 375 V to 425 V
      • output voltage: 48 V
      • maximum output current: 62.5 A
      • output power: 3 kW
      • peak efficiency: 95.3%
      • HF transformer isolation voltage: 4 kV
    • Resonant and switching frequencies:
      • max DC-DC switching frequency: 380 kHz (at startup)
      • closed loop switching frequency: 120 kHz to 250 kHz
      • resonant frequency: 175 kHz
    • Protection mechanisms:
      • undervoltage and overvoltage protection on input and output
      • overtemperature protection
      • short-circuit protection
      • forced cooling with air flow speed modulation according to the output power and temperature
    • Efficiency:
      • adaptive synchronous rectification
      • light load burst mode
    • Digital control with STM32F334 microcontroller

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
STEVAL-DPSLLCK1 STM32F334, STW70N60DM2, STP310N10F7, VIPER27
Active
718 1 3A991A2 ITALY Check Availability

Distributor availability ofSTEVAL-DPSLLCK1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1 1 Order Now
RS COMPONENTS EUROPE 1 1 Order Now
ARROW EUROPE 1 0 Order Now
Farnell Element14 EUROPE 2 1 Order Now

Distributor reported inventory date: 2019-05-20

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

2

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-20

STEVAL-DPSLLCK1

Core Product

STM32F334, STW70N60DM2, STP310N10F7, VIPER27

Marketing Status

Active

Unit Price (US$)

718.0*

Distributor availability ofSTEVAL-DPSLLCK1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1 1 Order Now
RS COMPONENTS EUROPE 1 1 Order Now
ARROW EUROPE 1 0 Order Now
Farnell Element14 EUROPE 2 1 Order Now

Distributor reported inventory date: 2019-05-20

Distributor Name

DIGIKEY

Stock

1

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

1

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

2

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-20

Unit Price (US$)

718

Quantity

1

ECCN (US)

3A991A2

Country of Origin

ITALY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB3560
      3 kW Full Bridge LLC resonant digital power supply evaluation kit
      2.0
      803.95 KB
      PDF
      DB3560

      3 kW Full Bridge LLC resonant digital power supply evaluation kit

    • Description Version Size Action
      UM2348
      Getting started with the STEVAL-DPSLLCK1 evaluation kit for the 3 kW full bridge LLC digital power supply
      3.0
      1.07 MB
      PDF
      UM2348

      Getting started with the STEVAL-DPSLLCK1 evaluation kit for the 3 kW full bridge LLC digital power supply

Hardware Resources

    • Description Version Size Action
      STEVAL-DPSLLCK1 GERBER 1.0
      1.43 MB
      ZIP

      STEVAL-DPSLLCK1 GERBER

    • Description Version Size Action
      STEVAL-DPSLLCK1 BOM 1.0
      94.22 KB
      PDF

      STEVAL-DPSLLCK1 BOM

    • Description Version Size Action
      STEVAL-DPSLLCK1 SCHEMATIC 2.0
      607.99 KB
      PDF

      STEVAL-DPSLLCK1 SCHEMATIC

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-DPSLLCK1
Active
CARD Industrial Ecopack2 -

STEVAL-DPSLLCK1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.