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  • Description

    The JW®1757A/B/C is a constant current LED driver with high current accuracy which applies to single stage high PF buck LED drivers. High voltage power MOS is integrated, which can significantly simplify the design of LED lighting system.

    JW1757A/B/C integrates high voltage power source, and can be supplied by line voltage directly.

    High accuracy of output current is achieved by sampling the output current directly. Critical conduction mode operation reduces the switching losses and increases the efficiency. 

    JW1757A/B/C has multi-protection functions which largely enhance the safety and reliability of the system, including VCC over-voltage protection, VCC UVLO, LED open protection, inductor short protection, pulse-by- pulse current limit, over-temperature protection.

  • Features

    1.         No auxiliary winding

    2.         Supplied from line voltage directly

    3.         high voltage power MOSFET integrated

    4.         High current accuracy of line and load regulation

    5.         High power factor

    6.         Critical conduction mode

    7.         High efficiency over wide operating range

    8.         Cycle-by-cycle current limit

    9.         LED open protection

    10.       Inductor short protection

    11.       ISP short protection

    12.       Internal over-temperature protection

    13.       SOP7 and DIP7 package

  • Specification

    1. Input Voltage: 90~264Vac

    2. PF>0.9

    3. Efficiency: up to 94%

  • Typical Application
Software and hardware support
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