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The SDH7520 is a high performance, critical conduction mode power factor correction (PFC) controller.SDH7520 adopts high voltage power supply, and omits 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, 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
  • Patented closed-loop control technology, without peripheral compensation network, anti-moisture and anti-leakage
  • VCC under-voltage lockout
  • Output overvoltage protection
  • CS cycle-by-cycle current limit
  • Over temperature protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SDH7520 SOP-8-225-1.27 SDH7520 Halogen free Tube
SDH7520TR SOP-8-225-1.27 SDH7520 Halogen free Tape & Reel
Block Diagram

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Documents
title Types of Size (KB) date Download the latest English version
SDH7520 0 1970-01-01 SDH7520 Brief Datasheet