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SC3053 Fast Turn-Off Synchronous Rectifier Controller SOT23-6 New And Original

Classification:

Product

High frequency transformer


  • Product Detail
    • Commodity name: SC3053 Fast Turn-Off Synchronous Rectifier Controller SOT23-6 New And Original
    • Commodity ID: 1342449579240083456

    1 Description
    SC3503 is a smart secondary-side driver IC designed to
    drive N-Channel power MOSFET used as synchronous
    rectifiers in isolated flyback converters. The MOSFET can
    replace Schottky diode so the system can achieve higher
    efficiency and superior heat dissipation performance.
    The SR MOSFET is turned on when VDS falls below turn-on
    threshold, and turned off when VDS exceeds turn-off
    threshold. The SR conduction voltage drop is continuously
    monitored to minimize the conduction loss. The extremely
    fast turn-off comparator and driving circuitry ensures the
    safety of the SR MOSFET, even in current continuous mode
    (CCM) condition.
    The IC can work well in wide output voltage range, even in
    short circuit conditions. The patented turn on detection
    circuity prevents SR turn on when Vds rings severely. The
    wide VDD range and gate driver technology make the
    controller ideal for wide output voltage range applications,
    such as adapters, chargers, USB Power Delivery (USB-PD),
    etc.
    This chip supports both high side rectification and low side
    rectification.

    2 Features
     Wide output range, even down to 0V.
     No need of auxiliary winding for power supply.
     Patented programmable turn on detection circuitry
    prevents MOSFET from mistake turn-on.
     Compliant with multiple types of MOSFETs
     High efficiency can meet CoC V5 and DoE VI.
     10nS turn off propagation delay
     High switching frequency up to 1MHz.
     Extremely low quiescent current leads to low stand by
    power.
     Supports DCM, CCM, and Quasi-Resonant mode
    converters.
     Supports both high and low side synchronous
    rectification.
     SOT23-6 package available

    3 Applications
     Universal AC-DC Adaptors
     USB PD and QC Chargers
     Flyback Power Supplies with Variable Output Voltage
     AC-DC auxiliary supplies