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升降压芯片

SC8921

    The SC8921 is a highly integrated switch-mode boost charger for two cell Li-ion battery applications. It is able to step up 4.5V~5.5V input voltage to up to 16V, and provide battery charge management functions including trickle charge,constant current charge, constant voltage charge, charge termination and charging status indication.

    The SC8921 supports flexible charge current option, and the user can program the current freely through external resistor for different applications. With the charger management function, the IC can be used to charge 2 cell Li-ion battery.

    The SC8921 supports 2A input current limit, input under voltage and over voltage protections, internal cycle by cycle current limit, battery short circuit protection, and output over voltage protection. It also offers charging safety timer and over temperature protection to ensure safety under different abnormal conditions.

    The SC8921 is available in ESOP8L package.
    SC8921 DESCRIPTION:
        The SC8921 is a highly integrated switch-mode boost charger for two cell Li-ion battery applications. It is able to step up 4.5V~5.5V input voltage to up to 16V, and provide battery charge management functions including trickle charge,constant current charge, constant voltage charge, charge termination and charging status indication.
        The SC8921 supports flexible charge current option, and the user can program the current freely through external resistor for different applications. With the charger management function, the IC can be used to charge 2 cell Li-ion battery.
        The SC8921 supports 2A input current limit, input under voltage and over voltage protections, internal cycle by cycle current limit, battery short circuit protection, and output over voltage protection. It also offers charging safety timer and over temperature protection to ensure safety under different abnormal conditions.
        The SC8921 is available in ESOP8L package.

    SC8921 FEATURES:
    Integrated Synchronous Boost Charger
    Charging Management (Trickle Charge / Constant
    Current Charge / Constant Voltage Charge / Charge Termination)
    Programmable Constant Charge Current
    Selectable Constant Voltage
    Charge Status Indication
    Charge Safety Timer
    2A Input Current Limit
    Adaptive Input Current Limit
    Input Under Voltage and Over Voltage Protection
    Battery Short Circuit Protection
    Short circuit protection for VBAT output
    Thermal Shutdown

    SC8921 APPLICATIONS:
    Blue tooth speaker charger
    E-cigarette charger
    E-joy charger
    LI-ion battery charger
    POS machine

    SC8921 DEVICE INFORMATION:

    Part Number

    Package

    Dimension

    SC8921SDER

    ESOP8L

    5 mm x 6 mm x 1.5 mm


    SC892 Typical Application Circuit:


    SC892 Terminal Configurations and Functions:


    SC892 Function Block Diagram:






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