STDES-3KWTLCP

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Design Win

3 kW telecom rectifier reference design based on the STM32G474RBT6 digital power MCU

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Product overview

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.

  • All 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

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STDES-3KWTLCP
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- Industrial - Yes

STDES-3KWTLCP

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Active

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Industrial

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-

(**) 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.

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Part Number:

STDES-3KWTLCP

Supplier:

ST

Core Product:

STM32G474RBT6, SCTW35N65G2V, STW70N65DM6-4, STGAP2HS, STGAP2DM

Board production status:

Not for sale

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(*) 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