SG6980DZ

Overview

The SG6980DZ is a highly integrated average current mode Power Factor Correction (PFC) controller manufactured by Fairchild Semiconductor. Designed for boost PFC applications, it requires minimal external components to achieve high performance. The device operates with a switching frequency of 65 kHz and supports a supply voltage range of 12.5 V to 20 V. It features a low startup current of 10 μA and functions within an operating temperature range of -20°C to 125°C. Packaged in a PDIP-16 format, this IC serves as a core component for efficient power factor correction in power supply systems.

Feature Summary

• Implements average current mode control for precise power factor correction
• Highly integrated design minimizing the requirement for external components
• Operates with low startup current to enhance efficiency

Applications

• Boost power-factor-correction circuits
• Power supply systems requiring PFC integration

Procurement Notes

Verify the specific manufacturer designation, as Fairchild Semiconductor's semiconductor division is now part of Onsemi. Confirm the product status, as listings indicate this part may be obsolete. Ensure the package type matches the required PDIP-16 configuration and validate the electrical parameters against official datasheets before procurement.

Selection Notes

Select this component for applications requiring average current mode PFC control with a fixed 65 kHz switching frequency. Consider the 12.5 V to 20 V supply voltage range and the -20°C to 125°C operating temperature limits. Evaluate the need for minimal external component count and the availability of the PDIP-16 package for the target design.

Part Context

The SG6980 series belongs to the class of power management integrated circuits focused on power factor correction. This specific model represents a solution for improving power efficiency in AC-DC conversion stages. It is part of a lineage of controllers designed to reduce harmonic distortion and improve the power factor of electronic loads.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.