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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.

    主要特性

    • 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 computers
    • Certified as 80Plus PLATINUM level at 115 Vac and GOLD level at 230 Vac in the CLEAResult Plug Load Solutions website
    • 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

样片和购买

产品型号
核心产品
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
Board production status
从分销商订购
从ST订购
EVL400W-EUPL7 ST
批量生产
180 1 EAR99 - - 没有经销商,请联系我们的销售办事处

EVL400W-EUPL7

核心产品

ST

供货状态

批量生产

单价(US$)

180.0*

单价(US$)

180

数量

1

ECCN (US)

EAR99

Country of Origin

-

Board production status

-

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

适合您的资源

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技术文档

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      DB3795
      12 V - 400 W adapter based on L4984, L6699 and SRK2001
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      522.43 KB
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      DB3795

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

    • 描述 版本 文档大小 操作
      AN5264
      EVL400W-EUPL7 400W SMPS demonstration board
      2.0
      6.03 MB
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      AN5264

      EVL400W-EUPL7 400W SMPS demonstration board

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
EVL400W-EUPL7
批量生产
CARD 工业 Ecopack1 -

EVL400W-EUPL7

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

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