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SDH720X is a high-precision step-down LED constant current driver circuit that supports PWM dimming function, designed for flicker-free LED smart lighting applications. SDH720X can achieve excellent dimming and output current consistency, and is suitable for use with non-isolated BUCK LED lighting systems.

SDH720X integrates HV start-up circuit and 500V power MOS, no VCC capacitors and auxiliary windings are required, and only a few peripheral components are needed to achieve excellent constant current characteristics, which greatly saves system cost and volume.

SDH720X has a high-precision current sensing circuit inside to achieve accurate LED constant current output and excellent line voltage regulation. It has complete protection functions, such as LED open circuit protection, LED short circuit protection, and over temperature regulation etc.


Main feature
  • 1%-100% PWM dimming supported

  • Flicker-free in the whole dimming process

  • No start-up resistor and VCC capacitor are required

  • Internal 500V high voltage power MOS

  • ±5% output current precision

  • Over temperature regulation

  • LED output short circuit protection and LED output open circuit protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SDH7201S SOP-8-225-1.27 SDH7201S Halogen free Tube
SDH7201STR SOP-8-225-1.27 SDH7201S Halogen free Tape & Reel
SDH7202AS SOP-8-225-1.27 7202AS Halogen free Tube
SDH7202ASTR SOP-8-225-1.27 7202AS Halogen free Tape & Reel
SDH7202S SOP-8-225-1.27 SDH7202S Halogen free Tube
SDH7202STR SOP-8-225-1.27 SDH7202S Halogen free Tape & Reel
SDH7202D DIP-7-300-2.54 SDH7202D Halogen free Tube
SDH7203S SOP-8-225-1.27 SDH7203S Halogen free Tube
SDH7203STR SOP-8-225-1.27 SDH7203S Halogen free Tape & Reel
SDH7203D DIP-7-300-2.54 SDH7203D Halogen free Tube
SDH7204D DIP-7-300-2.54 SDH7204D Halogen free Tube
Block Diagram

720X英文.png

Documents
title Types of Size (KB) date Download the latest English version
SDH720X 0 1970-01-01 SDH720X Brief Datasheet