中文字幕精品无码一区二区,久久久久国产精品,成人精品,特级精品毛片免费观看,精品久久久久久,国产精品久久久久久吹潮,亚洲精品一区二区三区四区高清,精品人妻少妇嫩草AV无码专区,亚洲国产成人精品女人久久久,久久夜色精品国产欧美乱极品,国产精品久久久久久久久久,成人精品鲁一鲁一区二区,国产精品久久久午夜夜伦鲁鲁,欧美日韩精品

中
Products
Applications
Support
Quality
Join us
About Silan
Mailbox verification
Your email:
Verification Code:
SD4938
150V CURRENT MODE PWM CONTROLLER

    SD4938 is a current mode PWM controller with 150V MOSFET used for SMPS.

    SD4938 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.

    SD4938 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

  • Input voltage: 20V~150V

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

  • Output current: 0.5A

  • High-voltage self-startup

  • Burst mode at light load 

  • Frequency reduction

  • Soft startup

  • VDD undervoltage protection

  • VDD overvoltage protection 

  • Leading edge blanking

  • Output overload protection

  • Over current protection 

  • Over temperature protection

Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD4938 SOP-8-225-1.27 SD4938 Halogen free Tube
SD4938TR SOP-8-225-1.27 SD4938 Halogen free Tape & Reel
Block Diagram

1.png

Documents
title Types of Size (KB) date Download the latest English version
SD4938 0 1970-01-01 SD4938 Brief Datasheet