IR1155STRPBF

Overview

The IR1155STRPBF is a programmable frequency single-cycle control power factor correction (PFC) integrated circuit manufactured by Infineon Technologies. It operates within a switching frequency range of 48 kHz to 200 kHz and features a VCC supply voltage range of 12 V to 20 V. The device has a maximum ICC of 13 mA and a quiescent current (Iq) of 175 µA. It dissipates up to 976 mW of power and is housed in an 8-lead SOIC package with a moisture sensitivity level of 2. This component is designed for high-efficiency AC-DC conversion applications.

Feature Summary

• Single-cycle control architecture for precise power factor correction
• Programmable switching frequency capability
• Low quiescent current operation for improved efficiency
• Integrated MOSFET gate driver functionality

Applications

• Desktop Switching Mode Power Supplies (SMPS)
• Server SMPS
• AC-DC adapters
• LCD TV power supplies
• Telecom SMPS

Procurement Notes

Verify the End-of-Life (EOL) status before procurement, as this component is officially discontinued. Check for limited availability from authorized distributors or third-party sources. Confirm that the specific suffix matches the required packaging format. Ensure compliance with RoHS standards and verify the manufacturer's discontinuance notification documentation prior to finalizing any design-in decisions.

Selection Notes

Select this IC for designs requiring single-cycle control PFC with programmable frequency ranges between 48 kHz and 200 kHz. Consider its low Iq of 175 µA for applications prioritizing standby power efficiency. Ensure the system supports the 12 V to 20 V VCC operating range. Evaluate the 8-lead SOIC package constraints against PCB layout requirements and thermal dissipation needs for the 976 mW power rating.

Part Context

The IR1155S belongs to Infineon's portfolio of power management ICs specifically tailored for power factor correction. It utilizes single-cycle control technology to enhance performance in AC-DC converters. The STRPBF suffix indicates the tape-and-reel packaging variant of the standard IR1155S part, facilitating automated assembly processes while maintaining identical electrical characteristics and functional specifications.

Replacement Considerations

As the IR1155STRPBF is discontinued, consult official Infineon replacement lists or application notes for compatible successors. Verify that alternative components support similar single-cycle control architectures and comparable switching frequency ranges. Ensure pin compatibility and thermal performance match the original design requirements.