7 W dual output flyback converter with standby managed by capacitive touch using VIPer0P and STM32L

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  • This offline converter key feature is the zero power mode (ZPM), an idle state during which the device is totally shut down. The IC enters ZPM by pulling the OFF pin to SGND for more than 10 ms and exits ZPM (resuming normal switching) by pulling the ON pin to SGND for more than 20 μs. This function can be tested via the tactile switches connected to the ON and OFF pins.

    In ZPM the mains power consumption at 230 VAC can be below 5 mW; the STEVAL-ISA192V1 evaluation board consumption is 30 mW due to the MCU polling strategy implemented at firmware level.
    The board has a dual output (i.e., - 5 V and + 7 V based on flyback topology). The negative output is obtained by just connecting EAGND to the negative rail and a voltage divider among FB, EAGND and SGND. The positive output derives from the turn ratio of the transformer secondary windings.
    To achieve extremely low input power consumption, the IC is biased through a diode coming from the + 7 V, which maintains the VCC voltage high enough (> 4.5 V) to prevent the internal HV current source activation.
    The STEVAL-ISA192V1 is equipped with the STM32L0 microcontroller which detects tactile push buttons and capacitive touch interface. The STM32L0 core manages VIPer0P to achieve minimum power consumption in ZPM, while supplying the microcontroller and user interface (capacitive touch and push button) and still maintaining the overall efficiency quite high in standard operation mode.

    主要特性

    • Smart standby architecture using the zero power mode (ZPM) for capacitive touch sensing in consumer electronics applications
    • Enhanced system reliability thanks to VIPer0P 800 V avalanche rugged technology and its embedded protection
    • Minimized system input power consumption: less than 30 mW at 230 VAC in ZPM
    • IEC55022 Class B conducted EMI compliant, even with reduced EMI filter, thanks to the frequency jittering feature
    • IEC61000-4-2 (ESD), IEC61000-4-4 (EFT) and IEC61000-4-5 (Surge) compliant
    • RoHS compliant

样片和购买

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STEVAL-ISA192V1 VIPer0P; STM32L
批量生产
65.0 1 EAR99 ITALY - 查看供货情况

Distributor availability ofSTEVAL-ISA192V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 30 1 Order Now

代理商库存报告日期: 2019-10-17

代理商名称

DIGIKEY

库存

10

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1

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RS COMPONENTS

库存

3

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

7

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1

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Farnell Element14

库存

30

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-17

立即购买

STEVAL-ISA192V1

核心产品

VIPer0P; STM32L

供货状态

批量生产

单价(US$)

65.0*

Distributor availability ofSTEVAL-ISA192V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 30 1 Order Now

代理商库存报告日期: 2019-10-17

代理商名称

DIGIKEY

库存

10

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

3

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

7

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

30

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-17

单价(US$)

65

数量

1

ECCN (US)

EAR99

Country of Origin

ITALY

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

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技术文档

    • 描述 版本 文档大小 操作
      DB3187
      7 W dual output flyback converter with standby managed by capacitive touch using VIPer0P and STM32L
      1.0
      250.95 KB
      PDF
      DB3187

      7 W dual output flyback converter with standby managed by capacitive touch using VIPer0P and STM32L

    • 描述 版本 文档大小 操作
      AN4941
      7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052
      1.0
      3.43 MB
      PDF
      AN4941

      7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052

硬件资源

    • 描述 版本 文档大小 操作
      STEVAL-ISA192V1 gerber files 1.0
      165.28 KB
      ZIP

      STEVAL-ISA192V1 gerber files

    • 描述 版本 文档大小 操作
      STEVAL-ISA192V1 BOM 1.0
      62.23 KB
      PDF

      STEVAL-ISA192V1 BOM

    • 描述 版本 文档大小 操作
      STEVAL-ISA192V1 schematics 1.0
      285.12 KB
      PDF

      STEVAL-ISA192V1 schematics

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

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      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**
STEVAL-ISA192V1
批量生产
CARD 工业 Ecopack2 Yes

STEVAL-ISA192V1

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.