SC4812: Primary Side PoE PWM Controller

The SC4812 is a highly integrated current mode PWM controller designed for isolated or non-isolated dc-dc converters in telecommunication and data communication applications. It minimizes the amount of external discrete components needed and leads to substantial cost and space saving converter designs.


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Features

  • Wide input range
  • High-voltage start-up circuit
  • Current mode control
  • Transconductance error amplifier
  • Leading-edge blanking
  • Cycle by cycle current limit
  • Programmable external soft-start
  • Thermal shutdown
  • SO-8 package. This product is fully WEEE and RoHS compliant

Diagrams

Typical Application Circuit

SC4812 - Typical Application Circuit

Click diagram to enlarge

Applications

  • IP phones, PoE
  • Telecom isolated converters
  • Off-line isolated power supplies
  • Instrumentation power supplies
  • Battery chargers

Packaging

SOIC-8

Order Codes

  • SC4812STRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
Order Sample Button
Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets