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  • The EVL400W-EUPL7 demonstration board is a 12 V - 400 W converter, tailored for the typical specification of an AC/DC adapter with wide input mains range, very low power consumption at light load and good average efficiency.

    The architecture is based on a two-stage approach: a front-end PFC pre-regulator based on a CCM (continuous conduction mode) boost PFC controller using the L4984, and a downstream LLC resonant half-bridge converter, designed around the L6699.
    At the secondary side, synchronous rectification is implemented by means of the SRK2001 that assures a very high rectification efficiency with consequent small Heat Sink required.
    The PFC section uses a proprietary LM-FOT (line-modulated fixed-off-time) that allows control methodology at fixed frequency operation for boost PFC converters as long as its operating in CCM.
    The LLC section uses the L6699, a double-ended controller specific to series-resonant half-bridge topology. The output voltage regulation is obtained by modulating the operating frequency.
    The main focus of this demonstration board is the light-load efficiency, achieved through the burst mode function of both PFC and LLC controllers with the self-adaptive deadtime of the L6699, modulated by the internal logic according to the half-bridge node transition times, which allows the maximization of the transformer magnetizing inductance, reducing the primary current at light load operation.
    An active high voltage start-up circuitry based on a depletion MOSFET provides a very fast start-up time and minimizes the residual consumption during normal operation to a negligible level.

    主な特徴

    • Universal input mains voltage range: from 90 Vac to 264 Vac
      • frequency from 45 to 65 Hz
    • Output voltage: 12 V at 33 A continuous operation
    • Overall efficiency at full load: > 89%, according to ENERGY STAR® 6.1 limit for computer and compliant with 80Plus PLATINUM level
    • Average efficiency: > 89%, according to European CoC ver. 5 Tier 2 for external power supplies
    • Efficiency at 250 mW > 50%, well above EuP lot 6 Tier 2 limit for household and office equipment
    • No load mains consumption: < 150 mW at 230 Vac, well below European CoC ver. 5 Tier 2 limit for external power supplies
    • Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
    • EMI: according to EN55022 Class-B
    • Safety: meets EN60950 standards
    • RoHS compliant

サンプル & 購入

製品型番
コア製品
製品ステータス
概算価格(USS)
数量
ECCN (US)
Country of Origin
Board production status
販売代理店からオーダー
STからオーダー
EVL400W-EUPL7 ST
アクティブ
180 1 EAR99 - -

販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください

EVL400W-EUPL7

コア製品

ST

製品ステータス

アクティブ

Unit Price (US$)

180.0*

Unit Price (US$)

180

数量

1

ECCN (US)

EAR99

Country of Origin

-

Board production status

-

(*) 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

推奨コンテンツ

関連製品

パワー・マネージメント

00 ファイルがダウンロード用に選択されています

技術文書

    • 概要 バージョン サイズ アクション
      DB3795
      12 V - 400 W adapter based on L4984, L6699 and SRK2001
      2.0
      513.33 KB
      PDF
      DB3795

      12 V - 400 W adapter based on L4984, L6699 and SRK2001

    • 概要 バージョン サイズ アクション
      AN5264
      EVL400W-EUPL7 400W SMPS demonstration board
      1.0
      1.6 MB
      PDF
      AN5264

      EVL400W-EUPL7 400W SMPS demonstration board

関連資料

    • 概要 バージョン サイズ アクション
      eDesignSuite-The smart way to design your application 1.0
      715.75 KB
      PDF

      eDesignSuite-The smart way to design your application

法務

    • 概要 バージョン サイズ アクション
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

製品型番 製品ステータス パッケージ グレード RoHSコンプライアンスグレード WEEE Compliant Material Declaration**
EVL400W-EUPL7
アクティブ
CARD インダストリアル Ecopack1 -

EVL400W-EUPL7

Package:

CARD

Material Declaration**:

Marketing Status

アクティブ

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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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