SG2846N

Overview

The SG2846N is a current mode PWM controller IC designed for DC-DC switching applications. It supports Buck, Boost, and Push-Pull topologies with positive output configurations. The device operates within an input voltage range of 8V to 40V and features a switching frequency up to 500kHz. It includes integrated synchronous rectification and clock synchronization capabilities. Control features encompass current limiting and enable functions. The component is housed in a 16-pin PDIP package and is rated for an operating temperature range of -25°C to 85°C.

Feature Summary

• Supports multiple converter topologies including buck, boost, and push-pull configurations
• Integrates synchronous rectification and clock synchronization functionality
• Provides current limiting and enable control characteristics

Applications

• Buck regulator circuits
• Boost regulator circuits
• Push-pull power supply designs

Procurement Notes

Verify the manufacturer origin carefully, as historical data indicates production by Microsemi Corporation prior to its acquisition by Microchip Technology. Confirm the specific package variant matches the required 16-PDIP form factor. Check for any ordering suffixes that may denote temperature grades or tape-and-reel packaging options. Ensure the component status aligns with current availability requirements.

Selection Notes

Select this component when a current mode PWM controller is required for isolated or non-isolated power supplies. It is suitable for designs needing synchronous rectification to improve efficiency. Consider the 8V to 40V supply range and 500kHz maximum frequency against system constraints. Verify compatibility with external power stages for buck, boost, or push-pull implementations.

Part Context

The SG2846N belongs to the family of DC-DC switching controllers manufactured by Microchip Technology. It serves as a core control element in various power conversion systems. The part is distinct from linear regulators like the NJM2846. It provides flexible topology support for efficient energy transfer in industrial and commercial power applications.

Replacement Considerations

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