STCH03

批量生产
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Offline PWM controller for low standby adapters

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  • The STCH03 current-mode controller is designed for an offline quasi-resonant ZVS (zero-voltage-switching at switch turn-on) flyback converter.

    It combines a high-performance low-voltage PWM controller chip and a 650V HV start-up cell in the same package.
    Constant output voltage (CV) regulation loop is achieved by secondary side feedback, the output voltage information is transfered via an optocoupler on the FB pin of the STCH03 to get the selected output voltage.
    The device features a unique characteristic: it is capable of providing constant output current regulation (CC) using primary-sensing feedback. This eliminates the need for dedicated current reference IC, as well as the current sensor, still maintaining quite accurate output current regulation.
    The quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers the turn-on of the MOSFET, connected on the ZCD pin. This input serves also as both output voltage monitor, to achieve mains-independent CC regulation (line voltage feedforward), and to implement OVP and UVP.
    The maximum switching frequency is top-limited below 154 kHz, so that at the medium-light load a special function automatically lowers the operating frequency whilst still maintaining the operation as close to ZVS as possible. At the very light load, the device enters a controlled burst-mode operation that, along with the zero-power high-voltage start-up circuit, the extremely low quiescent current of the device, helps minimize the residual input consumption, thus meeting the requirements of the most stringent standards.
    During the burst-mode operation the VDD supply voltage has to be guaranteed by optimum application design. In any case, an innovative adaptive UVLO helps to minimize the issues related to the fluctuations of the auxiliary biasing voltage with the output load, due to parasitic capacitance of the transformer and further reducing the IC's bias consumption.
    In addition to these functions that optimize power handling under different operating conditions, the device also offers the output overvoltage protection (OVP), overtemperature protection (OTP), hiccup-mode protection that is invoked when the transformer saturates or the secondary diode fails short and the output undervoltage protection (UVP) that limits the average output current in case of the output short-circuit. All the protections are auto-restart mode, except the OVP protection, that can be internally selected to be auto-restart or latched mode.
    The embedded leading-edge blanking on the current sense input for greater noise immunity completes the equipment of this device.

    主要特性

    • Advanced power management for ultra-low standby power consumption (under 10 mW at 230 VAC)
    • Fully integrated primary side constant current output regulation (CC)
    • 650 V embedded HV start-up circuit with zero power consumption.
    • Quasi-resonant (QR) zero-voltage-switching (ZVS) operation
    • Accurate and adjustable output OVP with options auto-restart (STCH03) or latched (STCH03L) after fault
    • Output undervoltage protection (UVP) with auto-restart
    • Input voltage feedforward compensation for mains-independent CC regulation
    • Embedded thermal shutdown
    • Intelligent frequency jitter for EMI suppression
    • SO8 package

样片和购买

产品型号
封装
包装类型
供货状态
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
从ST订购
从分销商订购
STCH03TR SO-8 Tape And Reel
批量生产
EAR99 CHINA 0.5375 / 1k 获取样片 查看供货情况

...的经销商可用性STCH03TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2284 1 马上订购
RS COMPONENTS EUROPE 40 1 马上订购
AVNET AMERICA 2500 0 马上订购
MOUSER WORLDWIDE 4518 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

DIGIKEY

库存

2284

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

40

Min.Order

1

地区

EUROPE 马上订购

AVNET

库存

2500

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

4518

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-06-02

STCH03LTR SO-8 Tape And Reel
批量生产
EAR99 CHINA 0.5375 / 1k 获取样片 查看供货情况

...的经销商可用性STCH03LTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2476 1 马上订购
AVNET AMERICA 2500 0 马上订购
FUTURE WORLDWIDE 2500 2500 马上订购
MOUSER WORLDWIDE 2497 1 马上订购
Farnell Element14 EUROPE 142 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

DIGIKEY

库存

2476

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

2500

Min.Order

0

地区

AMERICA 马上订购

FUTURE

库存

2500

Min.Order

2500

地区

WORLDWIDE 马上订购

MOUSER

库存

2497

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

142

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-02

STCH03 SO-8 Tube
批量生产
EAR99 CHINA 0.5375 / 1k 获取样片 查看供货情况

...的经销商可用性STCH03

代理商名称
地区 库存 最小订购量 第三方链接
ARROW EUROPE 4000 0 马上订购
MOUSER WORLDWIDE 1778 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

ARROW

库存

4000

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

1778

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-06-02

STCH03L SO-8 Tube
批量生产
EAR99 CHINA 0.5375 / 1k 没有经销商,请联系我们的销售办事处

STCH03TR

封装

SO-8

包装类型

Tape And Reel

Budgetary Price (US$)*/Qty

0.5375 / 1k

...的经销商可用性STCH03TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2284 1 马上订购
RS COMPONENTS EUROPE 40 1 马上订购
AVNET AMERICA 2500 0 马上订购
MOUSER WORLDWIDE 4518 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

DIGIKEY

库存

2284

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

40

Min.Order

1

地区

EUROPE 马上订购

AVNET

库存

2500

Min.Order

0

地区

AMERICA 马上订购

MOUSER

库存

4518

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-06-02

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.5375 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

STCH03LTR

封装

SO-8

包装类型

Tape And Reel

Budgetary Price (US$)*/Qty

0.5375 / 1k

...的经销商可用性STCH03LTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2476 1 马上订购
AVNET AMERICA 2500 0 马上订购
FUTURE WORLDWIDE 2500 2500 马上订购
MOUSER WORLDWIDE 2497 1 马上订购
Farnell Element14 EUROPE 142 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

DIGIKEY

库存

2476

Min.Order

1

地区

WORLDWIDE 马上订购

AVNET

库存

2500

Min.Order

0

地区

AMERICA 马上订购

FUTURE

库存

2500

Min.Order

2500

地区

WORLDWIDE 马上订购

MOUSER

库存

2497

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

142

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-02

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.5375 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

STCH03

封装

SO-8

包装类型

Tube

Budgetary Price (US$)*/Qty

0.5375 / 1k

...的经销商可用性STCH03

代理商名称
地区 库存 最小订购量 第三方链接
ARROW EUROPE 4000 0 马上订购
MOUSER WORLDWIDE 1778 1 马上订购

代理商库存报告日期: 2020-06-02

代理商名称

ARROW

库存

4000

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

1778

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-06-02

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.5375 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

STCH03L

封装

SO-8

包装类型

Tube

Budgetary Price (US$)*/Qty

0.5375 / 1k

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.5375 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

评估工具

    • 产品型号

      45W / 12V power supply based on STCH03 QR flyback controller and SRK1000B adaptive synchronous rectification controller

      EVL80WLED-STCH03: 80W-1A primary side current loop control LED driver with STCH03 for street lighting applications

      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B

      45W USB Type-C Power Delivery 3.0 adapter based on STCH03, SRK1001 and STUSB4761

      15 W 5 V output USB adapter evaluation board with STCH03 CC-mode primary sensing switching controller

      45 W USB Type-C™ Power Delivery adapter reference design based on STCH03, STM32F051 and STUSB1602A

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS12460
      Offline PWM controller for low standby adapters
      2.0
      609.88 KB
      PDF
      DS12460

      Offline PWM controller for low standby adapters

    • 描述 版本 文档大小 操作
      AN5280
      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B
      1.0
      6.72 MB
      PDF
      AN5442
      45W USB Type-C™ PD adapter board with controllers STCH03 QR flyback,SRK1001 adaptive synchronous rectifier and STUSB4761 USB Type-C™ PD
      1.1
      14.03 MB
      PDF
      AN5280

      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B

      AN5442

      45W USB Type-C™ PD adapter board with controllers STCH03 QR flyback,SRK1001 adaptive synchronous rectifier and STUSB4761 USB Type-C™ PD

    • 描述 版本 文档大小 操作
      DT0118
      A Procedure for Restoring Bootloader Functionality to the STNRG388A
      1.0
      367.56 KB
      PDF
      DT0118

      A Procedure for Restoring Bootloader Functionality to the STNRG388A

    • 描述 版本 文档大小 操作
      AN5189
      15 W 5 V output USB adapter board with STCH03 CC-mode primary sensing switching controller
      1.0
      1.87 MB
      PDF
      AN5280
      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B
      1.0
      6.72 MB
      PDF
      AN5442
      45W USB Type-C™ PD adapter board with controllers STCH03 QR flyback,SRK1001 adaptive synchronous rectifier and STUSB4761 USB Type-C™ PD
      1.1
      14.03 MB
      PDF
      AN5351
      EVL80WLED-STCH03: 80W-1A primary side current loop control LED driver with STCH03 for street lighting applications
      1.0
      6.21 MB
      PDF
      AN5164
      STEVAL-USBPD45C 45 W USB Type-C™ Power Delivery adapter
      2.0
      1.41 MB
      PDF
      AN5430
      The STUSB4761 PCB routing guidelines
      1.1
      396.92 KB
      PDF
      AN5189

      15 W 5 V output USB adapter board with STCH03 CC-mode primary sensing switching controller

      AN5280

      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B

      AN5442

      45W USB Type-C™ PD adapter board with controllers STCH03 QR flyback,SRK1001 adaptive synchronous rectifier and STUSB4761 USB Type-C™ PD

      AN5351

      EVL80WLED-STCH03: 80W-1A primary side current loop control LED driver with STCH03 for street lighting applications

      AN5164

      STEVAL-USBPD45C 45 W USB Type-C™ Power Delivery adapter

      AN5430

      The STUSB4761 PCB routing guidelines

Presentations & Training Material

    • 描述 版本 文档大小 操作
      Primary side regulation controllers portfolio
      1.1 MB
      PDF

      Primary side regulation controllers portfolio

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      STCH03 Ultra-Low Standby Power Supplies 06.2018
      1.27 MB
      PDF

      STCH03 Ultra-Low Standby Power Supplies

    • 描述 版本 文档大小 操作
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      电源管理指南 06.2019
      5.89 MB
      PDF

      Electric vehicle (EV) ecosystem

      电源管理指南

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
STCH03
批量生产
SO-8 Industrial Ecopack2
STCH03L
批量生产
SO-8 Industrial Ecopack2
STCH03LTR
批量生产
SO-8 Industrial Ecopack2
STCH03TR
批量生产
SO-8 Industrial Ecopack2

STCH03

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STCH03L

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STCH03LTR

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STCH03TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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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