SD4943S is a current - mode PWM controller with a built - in 150V high - voltage MOSFET for switching power supplies. It will enter the burst mode under light load, thus effectively reducing the standby power dissipation of the system.
The SD4943S features high - voltage start - up, self - power supply, frequency reduction, and soft start. Various protection functions, it also integrates various protections including: VDD undervoltage protection, VDD overvoltage protection, output overload protection, output short - circuit protection, over - temperature protection, etc. After the protection is triggered, the circuit will automatically restart until the system is normal.
16V~150V input voltage
Adjustable output voltage
High-voltage self-power
Frequency reduction at light load condition
Optimized load regulation
Soft startup
VDD undervoltage protection
Output overvoltage protection
Output overload protection
Over temperature protection
Product Name | Package form | Marking | Hazardous Substance Control | Packing Type | Remarks |
---|---|---|---|---|---|
SD4943STR | SOP-8-225-1.27 | SD4943S | Halogen free | Tape & Reel | |
SD4943S | SOP-8-225-1.27 | SD4943S | Halogen free | Tube |
title | Types of | Size (KB) | date | Download the latest English version |
---|---|---|---|---|
SD4943S | 0 | 1970-01-01 | SD4943S Brief Datasheet |