EVL400W-80PL

量産中
Design Win

12 V - 400 W adapter based on L4985A, L6699 and SRK2001

データブリーフのダウンロード Order Direct
概要
サンプル & 購入
ソリューション
ドキュメント
CADリソース
ツール & ソフトウェア
品質 & 信頼性
はじめる
Partner products
Sales Briefcase

製品概要

概要

The EVL400W-80PL demonstration board is a 12 V - 400 W converter, tailored to the typical specifications of an AC/DC adapter with wide input mains range, very low power consumption at light load and good average efficiency.

It is composed by a motherboard mounting the high voltage power devices, the primary control board mounting the IC controllers L4985A and L6699 and the secondary control board for the synchronous rectification.

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 L4985A, 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 a reduction in the size of the heatsink required.

The PFC section uses the L4985A, a peak current-mode PFC controller for boost converter with a proprietary multiplier “emulator” which, in addition to the innovative THD optimizers, guarantees very low Total Harmonic Distortion (THD) performance in all operating conditions.

The device operates in quasi-fixed frequency in all operating conditions thanks to a proprietary off-time modulator and includes the high voltage startup block with the circuitry to discharge the X-capacitors of the EMI filter.

This level of integration allows a low-component count solution for boost PFC pre-regulators.

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.

  • 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%, compliant to EuP lot 6 Tier 2 limit for household and office equipment
    • No load mains consumption: < 150 mW at 230 Vac, below European CoC ver. 5 Tier 2 limit for external power supplies
    • Mains harmonics: meets EN-61000-3-2 Class-D and JEITA-MITI Class-D
    • EMI: according to EN55022 Class-B
    • Safety: meets EN60950 standards
    • RoHS compliant

品質 & 信頼性

製品型番 マーケティング・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**
EVL400W-80PL
量産中
CARD インダストリアル Ecopack1 -

EVL400W-80PL

Package:

CARD

Material Declaration**:

Marketing Status

量産中

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) st.comで提供している材料宣誓書は、パッケージ・ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

サンプル & 購入

Swipe or click the button to explore more details Don't show this again
製品型番
Order from distributors
STから購入
コア製品
製品ステータス
サプライヤ
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
EVL400W-80PL Available at distributors

販売代理店在庫 EVL400W-80PL

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク

販売代理店在庫データ:

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

L4985A, L6699, SRK2001
量産中
ST EAR99 NEC ITALY Stock available

EVL400W-80PL 量産中

ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

製品型番:

EVL400W-80PL

コア製品:

L4985A, L6699, SRK2001

サプライヤ:

ST

ECCN (EU):

NEC

Country of Origin:

ITALY

Board production status:

Stock available

販売代理店

販売代理店在庫データ:

Swipe or click the button to explore more details Don't show this again

(*)概算用の参考価格(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。