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  • TD8203

  • TD8203 White LED Step-up Converter

    (DATASHEET)


    The TD8203 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive white LEDs.

    The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and low feedback voltage reduce power loss and achieve high efficiency. Fast switching frequency(1.5MHz typical) allows using small-size inductor and both of input and output capacitors. An over voltage protection function,which monitors the output voltage via OVP pin, stops switching of the IC if the OVP voltage exceeds the over voltage threshold. An internal soft-start circuit eliminates the inrush current during start-up.

    The TD8203 also integrates under-voltage lockout, overtemperature protection, and current limit circuits to protect the IC in abnormal conditions. The TD8203 is available in a SOT-23-6A
     

    Features

    Wide Input Voltage from 2.7V to 6V

    Fixed 1.5MHz Switching Frequency

    Reference Voltage : 0.2V

    PWM Brightness Control with Wide Frequency

    Range of 100Hz to 100kHz

    Build-In Power MOSFET : 0.2Ω

    Open-LED Protection

    Under-Voltage Lockout Protection

    Over-Temperature Protection

    <1mA Quiescent Current during Shutdown

    SOT-23-6A

    Halogen and Lead Free Available

    RoHS Compliant

     

    Applications

    White LED Display Backlighting

    Cell Phone and Smart Phone

    PDA, PMP, MP3

    Digital Camera

    Typical Application Circuit

    AMERICA TECHCODE SEMICONDUCTOR, INC.

 
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