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      SDH8322S
      CURRENT MODE PWM CONTROLLER

          SDH8322S is a current mode PWM controller with built-in high-voltage MOSFET used for SMPS.

          SDH8322S integrates high-voltage start-up circuit. It enters burst mode at light load to reduce the system standby power dissipation; the frequency reduction function optimizes the conversion efficiency at light load; the soft startup function reduces the stress of device to avoid transformer saturation.

      SDH8322S features various protections, including VDD undervoltage protection, VDD overvoltage protection, lead edge blanking, over current protection, over temperature protection, etc. Meanwhile, if any protection occurs, the circuit will continue to restart automatically until the system recovers.


      Main feature

      • Adjustable output voltage including: 12V, 15V and 18V

      • High-voltage self-startup

      • Burst mode at light load 

      • Frequency reduction

      • Soft startup

      • VDD undervoltage protection

      • VDD overvoltage protection 

      • Leading edge blanking

      • Over current protection 

      • Over temperature protection

      Ordering Information
      Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
      SDH8322STR SOP-8-225-1.27 SDH8322S Halogen free Tape & Reel
      SDH8322S SOP-8-225-1.27 SDH8322S Halogen free Tube
      Block Diagram

      1.png

      Documents
      title Types of Size (KB) date Download the latest English version
      SDH8322S 0 1970-01-01 SDH8322S Brief Datssheet