STEVAL-DPSLLCK1

Active

3 kW Full Bridge LLC resonant digital power supply evaluation kit

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Product overview

Description

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.
  • All 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

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STSW-DPSLLCK1

      Active

      STM32F334 full bridge LLC firmware package for STEVAL-DPSLLCK1

      Evaluation Tool Software ST
      STSW-DPSLLCK1

      Description:

      STM32F334 full bridge LLC firmware package for STEVAL-DPSLLCK1
    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-DPS334C1

      Active

      Digital power supply control board based on STM32F334

      PSU and Converter Solution Eval Boards ST
      STEVAL-DPS334C1

      Description:

      Digital power supply control board based on STM32F334

      STEVAL-IPFC01V1

      NRND

      3 kW three-channel interleaved PFC based on the STNRGPF01 digital controller

      AC-DC Converter ST
      STEVAL-IPFC01V1

      Description:

      3 kW three-channel interleaved PFC based on the STNRGPF01 digital controller

Quality and Reliability

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Core Product
Marketing Status
Supplier
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-DPSLLCK1 Available at 1 distributors

Distributor availability ofSTEVAL-DPSLLCK1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5 1 Buy from Distributor

Distributor reported inventory date: 2021-10-11

Distributor Name

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-11

Buy Direct STM32F334, STW70N60DM2, STP310N10F7, VIPER27
Active
ST 3A991A2 NEC ITALY - 718.0 / 1

STEVAL-DPSLLCK1

Core Product

STM32F334, STW70N60DM2, STP310N10F7, VIPER27

Marketing Status

Active

Budgetary Price (US$)*/Qty

718.0 / 1

Distributor availability ofSTEVAL-DPSLLCK1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 5 1 Buy from Distributor

Distributor reported inventory date: 2021-10-11

Distributor Name

MOUSER

Stock

5

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-11

Supplier

ST

ECCN (US)

3A991A2

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

718.0 / 1

Country of Origin

ITALY

Board production status

-

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