STEVAL-ISB033V1

NRND

Evaluation board for STBCFG01 single-cell Li+ battery charger with OTG boost, voltage mode fuel gauge and 200 mA LDO

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  • The STEVAL-ISB033V1 is an evaluation board to test the first-of-its-kind STBCFG01 switch mode battery charger for single cell Li-Ion batteries, which integrates a highly accurate voltage mode fuel gauge to monitor a battery's state of charge. The device also provides a 5 V output to supply USB OTG (on-the-go) bus-powered devices in addition to an LDO linear voltage regulator to support system boot in dead battery conditions.

    The STBCFG01 uses accurate measurements of the battery voltage which allows the estimation of the battery's state-of-charge (SOC) without a current-sensing resistor. The switching charger works together with the fuel gauge to simplify monitoring features and to save current consumption when the device is not charging. The battery charger features a smart input current limit; the maximum input current can be selected through the I²C interface, and if the input voltage drops below a programmable threshold, even if the selected maximum current limit current has not been reached yet the dynamic input current limit function is activated, preventing the input current from increasing further. The dynamic input current limit function can be disabled, if necessary. An automatic input pre-bias load makes the device suitable for applications using voltage sources requiring a minimum external load for correct regulation.

    Key Features

      • 2 MHz or 3 MHz switching frequency
      • 1.2 A max. charging current
      • 20 V tolerant input with OVP
      • Programmable input current limitation and dynamic input current limit
      • Battery overvoltage protection
      • Auto-recharge
      • Integrated current sensing resistor
      • USB compatible
    • Voltage mode fuel gauge
      • External sensing resistor not needed
      • Battery swap detection through ID resistor
      • Low battery voltage and low SOC programmable alarms
    • 50 mA LDO for system boot in dead battery condition
    • USB OTG VBUS generation (500 mA)
      • USB overvoltage protection
      • Programmable battery overcurrent protection
    • Automatic 60 mA input pre-bias
    • I²C compatible control interface
    • Interrupt output pin
    • RoHS compliant

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Technical Documentation

    • Description Version Size Action
      DB2572
      Evaluation board for STBCFG01 single-cell Li+ battery charger with OTG boost, voltage mode fuel gauge and 200 mA LDO
      1.0
      325.22 KB
      PDF
      DB2572

      Evaluation board for STBCFG01 single-cell Li+ battery charger with OTG boost, voltage mode fuel gauge and 200 mA LDO

    • Description Version Size Action
      UM1993
      Switch mode single cell Li+ battery charger with OTG boost, voltage mode fuel gauge and LDO
      1.0
      2.88 MB
      PDF
      UM1993

      Switch mode single cell Li+ battery charger with OTG boost, voltage mode fuel gauge and LDO

Hardware Resources

    • Description Version Size Action
      STEVAL-ISB033V1 gerber files 1.0
      375.61 KB
      ZIP

      STEVAL-ISB033V1 gerber files

    • Description Version Size Action
      STEVAL-ISB033V1 BOM 1.0
      75.67 KB
      PDF

      STEVAL-ISB033V1 BOM

    • Description Version Size Action
      STEVAL-ISB033V1 schematic 1.0
      155.72 KB
      PDF

      STEVAL-ISB033V1 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
      Terms of use 1.7
      57.54 KB
      PDF

      Terms of use

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISB033V1
NRND
CARD Industrial Ecopack2 -

STEVAL-ISB033V1

Package:

CARD

Material Declaration**:

Marketing Status

NRND

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.

Sample & Buy

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Budgetary Price (US$)*/Qty
STEVAL-ISB033V1 Available at 1 distributors

Distributor availability ofSTEVAL-ISB033V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now

Distributor reported inventory date: 2020-08-01

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-01

Buy now STBCFG01
NRND
ST EAR99 NEC ITALY - 57.0 / 1

STEVAL-ISB033V1

Core Product

STBCFG01

Marketing Status

NRND

Budgetary Price (US$)*/Qty

57.0 / 1

Distributor availability ofSTEVAL-ISB033V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now

Distributor reported inventory date: 2020-08-01

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-01

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

57.0 / 1

Country of Origin

ITALY

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