Datasheet4U Logo Datasheet4U.com

IR1155S - uPFC ONE CYCLE CONTROL PFC IC

General Description

The μPFC IR1155 power factor correction IC, based on IR proprietary "One Cycle Control" (OCC) technique, provides for high PF, low THD and excellent DC Bus regulation while enabling drastic reduction in component count, PCB area and design time as compared to traditional solutions.

Key Features

  • PFC IC with IR proprietary “One Cycle Control”.
  • Continuous conduction mode boost type PFC.
  • Programmable switching frequency (48k-200kHz).
  • Average current mode control.
  • Output overvoltage protection.
  • Open loop protection.
  • Cycle by cycle peak current limit.
  • VCC under voltage lockout.
  • Programmable soft start.
  • Micropower startup.
  • User initiated micropower “Sleep Mode”.
  • OVP/EN pin internal fil.

📥 Download Datasheet

Full PDF Text Transcription for IR1155S (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for IR1155S. For precise diagrams, and layout, please refer to the original PDF.

Feb 28, 2011 IR1155S PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC Features • PFC IC with IR proprietary “One Cycle Control” • Continuous conduction mode boost type PF...

View more extracted text
rietary “One Cycle Control” • Continuous conduction mode boost type PFC • Programmable switching frequency (48k-200kHz) • Average current mode control • Output overvoltage protection • Open loop protection • Cycle by cycle peak current limit • VCC under voltage lockout • Programmable soft start • Micropower startup • User initiated micropower “Sleep Mode” • OVP/EN pin internal filtering for higher noise immunity • 1.