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  • The EVL6566B-65W-QR is a demonstration board tailored on specification of a typical hi-end portable computer power supply. The peculiarities of this design are the very high average efficiency of about 90% without synchronous rectification and very low no load consumption of 100mW at 230 Vac. The result is that this converter is compliant to energy star eligibility criteria. The flyback stage implements the new ST dedicated current mode controller L6566B, operating in quasi-resonant mode and detecting the transformer demagnetization by pin ZCD.

    The resistor on pin OSC sets the maximum switching frequency at about 165 kHz.
    Because the maximum switching frequency is imposed, the converter operates in discontinuous conduction mode during light load operation. The L6566B valley skipping function is capable to turn-on the MOSFET in valley switching even in DCM, thus reducing switching losses.
    The Power MOSFET is a standard 800 V, STF7NM80, housed in TO-220FP package, needing just a small heat sink. The transformer is layer type, using a standard ferrite size EER28L, designed according to the EN60950.
    The flyback reflected voltage is ~150 V, providing enough room for the leakage inductance voltage spike with good margin for the reliability of the MOSFET.
    The output rectifiers are two, dual centre tap Schottky diode in parallel, STPS20H100CFP, housed in TO-220FP. They have been selected according to the maximum reverse voltage, forward voltage drop and power dissipation. The snubber damps the oscillation produced by the diode capacitance and the leakage inductance.
    A small LC filter has been added on the output, filtering the high frequency ripple and spikes.
    Thanks to the L6566B valley skipping feature it has been possible to dimension the power transformer parameters optimizing efficiency at different loads achieving an outstanding result even without synchronous rectification.

    主な特徴

    • Universal input mains range: 90 264 Vac - frequency 45 ÷ 65Hz
    • Output voltage: 19 V @ 3.42 A continuous operation
    • Mains harmonics: according to EN61000-3-2 Class-D or JEITA-MITI Class-D
    • Stand-by mains consumption: <100 mW @ 230 Vac
    • Average efficiency: better than 89% without synchronous rectification
    • EMI: according to EN55022-Class-B
    • Safety: according to EN60950
    • Dimensions: 58x121 mm, 25 mm components maximum height
    • PCB: single side, 35 μm, CEM-1, mixed PTH/SMT

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
EVL6566B-65W-QR L6566BH
アクティブ
- EAR99 - - 在庫チェック

Distributor availability ofEVL6566B-65W-QR

代理店名
地域 在庫 最小発注 Third party link
MOUSER WORLDWIDE 4 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

代理店レポートによる在庫データ: 2019-10-13

代理店名

MOUSER

在庫

4

Min.Order

1

地域

WORLDWIDE Order Now

ANGLIA Live

在庫

1

Min.Order

1

地域

EUROPE Order Now

代理店レポートによる在庫データ: 2019-10-13

購入

EVL6566B-65W-QR

コア製品

L6566BH

製品ステータス

アクティブ

Unit Price (US$)

*

Distributor availability ofEVL6566B-65W-QR

代理店名
地域 在庫 最小発注 Third party link
MOUSER WORLDWIDE 4 1 Order Now
ANGLIA Live EUROPE 1 1 Order Now

代理店レポートによる在庫データ: 2019-10-13

代理店名

MOUSER

在庫

4

Min.Order

1

地域

WORLDWIDE Order Now

ANGLIA Live

在庫

1

Min.Order

1

地域

EUROPE Order Now

代理店レポートによる在庫データ: 2019-10-13

Unit Price (US$)

-

数量

-

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

関連アプリケーション

電源 & コンバータ

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
      DB1229
      19 V - 65 W quasi resonant flyback adapter board
      1.1
      123.25 KB
      PDF
      DB1229

      19 V - 65 W quasi resonant flyback adapter board

    • 概要 バージョン サイズ アクション
      AN3089
      19 V - 65 W quasi-resonant flyback adapter using L6566B and TSM1014
      2.0
      644.02 KB
      PDF
      AN3089

      19 V - 65 W quasi-resonant flyback adapter using L6566B and TSM1014

ハードウェアリソース

    • 概要 バージョン サイズ アクション
      EVL6566B-65W-QR gerber files 1.0
      235.91 KB
      ZIP

      EVL6566B-65W-QR gerber files

    • 概要 バージョン サイズ アクション
      BOM for EVL6566B-65W-QR board 1.0
      23.12 KB
      PDF

      BOM for EVL6566B-65W-QR board

    • 概要 バージョン サイズ アクション
      Board schematics for EVL6566B-65W-QR board 1.0
      71.68 KB
      PDF

      Board schematics for EVL6566B-65W-QR 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
      842.88 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 材料宣誓書**
EVL6566B-65W-QR
アクティブ
CARD インダストリアル Ecopack1 -

EVL6566B-65W-QR

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.