EVLSTCH03-36W-SR

Active

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

Download databrief

Order from our eStore and our distributors

Buy now
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • The EVLSTCH03-36W-SR shown in the image here is a 36 W wide-range mains USB charger demonstration board, with selectable output voltage (5 - 9 - 12 V @ 3 A output current), based on the STCH03L and SRK1000B.

    The power circuit is a quasi-resonant (QR) flyback converter, with peak current mode control, based on the STCH03L IC. The circuit operates with secondary side constant voltage (CV) regulation through an optocoupler and is capable of providing constant output current (CC) regulation using primary sensing feedback.
    The STCH03L embeds a 650 V, non-dissipative, HV startup cell, which, along with the extremely low quiescent current and burst-mode management, helps minimize residual input consumption, thus achieving less than 20 mW under no-load condition.
    At secondary side, the SRK1000B controller implements synchronous rectification to increase system efficiency: it controls the synchronous rectifier MOSFET, driving its gate with minimal turn-on delay and maximizing the turn-off time instant (through an adaptive mechanism) so that the residual conduction of the SR MOSFET body diode after turn-off reduces to the target value of 300 ns.
    The charger is designed to meet the most stringent energy saving recommendations (Eu CoC rev. 5 - Tier 2 and EPS of DOE USA) as well as EMI regulation EN55022-Class-B for line conducted noise emissions.

    Key Features

    • Universal AC mains input voltage range: 90 V to 264 V
    • Output voltage: 5 - 9 - 12 V selectable @3 A continuous operation
    • Constant voltage (CV) regulation with optocoupler and constant current (CC) regulation with primary side sensing
    • No-load consumption < 20mW at 230 VAC (with load disconnected from charger)
    • 4 points average efficiency and 10% load efficiency in compliance with Eu CoC rev. 5 - Tier 2 (2016)
    • Line conducted EMI in compliance with EN55022 - Class B
    • Small form factor (73 x 55 x 15 mm)
    • RoHS compliant

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
Order from Distributors
Order from ST
EVLSTCH03-36W-SR -
Active
70.0 1 EAR99 - - Check Availability

Distributor availability ofEVLSTCH03-36W-SR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 10 1 Order Now

Distributor reported inventory date: 2019-12-12

Distributor Name

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-12-12

Buy now

EVLSTCH03-36W-SR

Core Product

-

Marketing Status

Active

Unit Price (US$)

70.0*

Distributor availability ofEVLSTCH03-36W-SR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 10 1 Order Now

Distributor reported inventory date: 2019-12-12

Distributor Name

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-12-12

Unit Price (US$)

70

Quantity

1

ECCN (US)

EAR99

Country of Origin

-

Board production status

-

(*) 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

Recommended for you

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB3823
      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B
      1.0
      325.94 KB
      PDF
      DB3823

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

    • Description Version Size Action
      AN5280
      36W USB charger with selectable output voltage (5-9-12 V @3A) based on STCH03L and SRK1000B
      1.0
      6.72 MB
      PDF
      AN5280

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

Hardware Resources

    • Description Version Size Action
      EVLSTCH03-36W-SR gerber files 1.0
      360.98 KB
      ZIP

      EVLSTCH03-36W-SR gerber files

    • Description Version Size Action
      EVLSTCH03-36W-SR Bill of materials 1.0
      354.57 KB
      PDF

      EVLSTCH03-36W-SR Bill of materials

    • Description Version Size Action
      EVLSTCH03-36W-SR SCHEMATIC 1.0
      86.31 KB
      PDF

      EVLSTCH03-36W-SR SCHEMATIC

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
EVLSTCH03-36W-SR
Active
CARD Industrial Ecopack1 -

EVLSTCH03-36W-SR

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.

Support & Feedback