亚洲天堂男人影院-色欲天天天综合网-国产午夜福利精品一区-2020精品国产自在现线看 久久99精品久久久久子伦,久久综合九色综合97欧美,小宝贝真紧校园H军人h,乱伦无码中文三级

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