Mailbox verification
Your email:
Verification Code:

SDH8312 is AC-DC controller with built-in 650V MOSFET used for SMPS.

SDH8312 integrates high-voltage circuit and self-power function for fast startup and low standby power dissipation. It features the frequency reduction function to optimize the conversion efficiency at light load; the soft startup function reduces the device stress to avoid transformer saturation. 

SDH8312 integrates various protections, including VDD undervoltage protection, open loop protection, output overload protection, output short-circuit 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

High-voltage self-startup 

Adaptive Frequency reduction

Soft startup

VDD undervoltage protection

FB open-loop protection 

Lead edge blanking

Output overload protection

Short-circuit protection 

Over temperature protection 

Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SDH8312TR SOP-8-225-1.27 SDH8312 Halogen free Tape & Reel
SDH8312 SOP-8-225-1.27 SDH8312 Halogen free Tube
Block Diagram

1.png