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    The SD42527 is a step-down PWM control LED driver with a built-in power MOSFET. It achieves 1A continuous output current in 6~60V input voltage range. It provides thermal shutdown circuit, current limit circuit and PWM dimming circuit.

    The SD42527 adopts current mode control which provides fast transient response, excellent constant current characteristic and simple loop stabilization design. It has high efficiency up to 96%, and has excellent constant current characteristic. When the input/output voltage changed, the output current change rate is within ±1.5%.


Main feature
  • 6~60V input voltage range;

  • Maximum 1A output current;

  • 0.60W built-in power MOSFET;

  • Integrate Jitter function;

  • Thermal compensation and linear dimming function;

  • PWM dimming function;

  • 300kHz fixed frequency;

  • Output current accuracy between ICs: ±3%;

  • High efficiency up to 96%;

  • Over temperature protection;

  • Cycle-by-cycle over current protection.

  • Dedicated current limit

  • Open-circuit detection & protection

  • ADJ voltage detection

  • Short-circuit protection

  • 90% Maximum duty cycle operation


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD42527 SOP-8-225-1.27 SD42527 Halogen Free Tube
SD42527TR SOP-8-225-1.27 SD42527 Halogen Free Tape & Reel
SD42527E ESOP-8-225-1.27 SD42527E Halogen Free Tube
SD42527ETR ESOP-8-225-1.27 SD42527E Halogen Free Tape & Reel
Block Diagram

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Documents
title Types of Size (KB) date Download the latest English version
SD42527 0 1970-01-01 SD42527 Brief Datasheet