Offline PWM quasi resonant controller for ultra-low standby power supplies

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  • The STCH02 is a PWM quasi resonant controller specifically designed for ultra-low standby power supplies.

    The built-in HV start-up cell with zero power consumption, the fully integrated blocks for primary side constant current output regulation and the advanced power management make this IC the best choice to build a high efficiency and ultra-low standby consumption power supply, with high overall and excellent dynamic performances.

    Key Features

    • Advanced power management for ultra-low standby power consumptions (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
    • Automatic self-supply
    • Accurate and adjustable output OVP with autorestart after fault
    • Input voltage feedforward compensation for mains-independent CC regulation
    • Intelligent frequency jitter for EMI suppression
    • SO-8 package

Sample & Buy

Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
STCH02 SO-8 Tube
NRND
0.43 1000 EAR99 - Check Availability

Distributor availability ofSTCH02

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1974 1 Order Now
MOUSER WORLDWIDE 1780 1 Order Now
Farnell Element14 EUROPE 1361 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

1974

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1780

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1361

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Buy now
STCH02TR SO-8 Tape And Reel
NRND
0.43 1000 EAR99 - Check Availability

Distributor availability ofSTCH02TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2248 1 Order Now
Farnell Element14 EUROPE 150 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2248

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

150

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Buy now

STCH02

Package

SO-8

Packing Type

Tube

Unit Price (US$)

0.43*

Distributor availability ofSTCH02

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1974 1 Order Now
MOUSER WORLDWIDE 1780 1 Order Now
Farnell Element14 EUROPE 1361 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

1974

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1780

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1361

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Marketing Status

NRND

Unit Price (US$)

0.43

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

STCH02TR

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.43*

Distributor availability ofSTCH02TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2248 1 Order Now
Farnell Element14 EUROPE 150 1 Order Now

Distributor reported inventory date: 2019-12-08

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2248

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

150

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-12-08

Marketing Status

NRND

Unit Price (US$)

0.43

Quantity

1000

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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Home, Building and City Automation

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Evaluation Tools

    • Part Number

      15 W, 5 V - 3 A output CC primary sensing USB adapter based on STCH02

      USB Power Delivery (Type-C PD) 45 W USB wall power adapter solution based on STCH02 and STUSB4700

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS11430
      Offline PWM controller for ultra-low standby adapters
      4.0
      726.33 KB
      PDF
      DS11430

      Offline PWM controller for ultra-low standby adapters

    • Description Version Size Action
      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

Presentations & Training Material

    • Description Version Size Action
      Primary side regulation controllers portfolio
      1.1 MB
      PDF

      Primary side regulation controllers portfolio

Publications and Collaterals

    • Description Version Size Action
      STCH02 Ultra-Low Standby Power Supplies 12.2017
      890.83 KB
      PDF

      STCH02 Ultra-Low Standby Power Supplies

    • Description Version Size Action
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Power Management Guide 06.2019
      4.89 MB
      PDF

      Electric vehicle (EV) ecosystem

      Power Management Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STCH02
NRND
SO-8 Industrial Ecopack2
STCH02TR
NRND
SO-8 Industrial Ecopack2

STCH02

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STCH02TR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

SO-8

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.

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

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A This option is required and must be a number.

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