Mailbox verification
Your email:
Verification Code:

    The SDH7520SN is a high performance power factor correction (PFC) controller. The circuit operates in Critical conduction mode (BCM) under high load values. For light loads, it will operate in DCM.

    SDH7520SN adopts high voltage power supply, and removes auxiliary winding by adopting MOS gate zero crossing detection technology.

    It uses patented COMP-saving capacitor technology to achieve excellent power factor correction and constant voltage output with only a few peripheral components, which greatly reduces the system cost.

    It provides various protections, such as output over voltage protection, output under voltage protection, CS cycle-by-cycle current limit and over temperature protection etc.


Main feature
  • Single winding inductor booster system with reduced periphery

  • High voltage start-up and power supply

  • Gate Zero-crossing detection and critical conduction mode 

  • Fixed on time control

  • Light load frequency reduction control

  • Patented closed-loop control technology, without peripheral compensation network, anti-moisture and anti-leakage

  • VCC under-voltage lockout

  • Output overvoltage protection and output under voltage protection

  • CS cycle-by-cycle current limit

  • Over temperature protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SDH7520SNTR SOP-8-225-1.27 7520SN Halogen free Tape & Reel
SDH7520SN SOP-8-225-1.27 7520SN Halogen free Tube
Block Diagram

SDH7520SN (中英文同).png

Documents
title Types of Size (KB) date Download the latest English version
SDH7520SN 0 2025-10-30 SDH7520SN Brief Datasheet