UCC3800N

DC DC Switching Controllers Overview

The UCC3800N is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It supports multiple converter topologies including Boost, Buck, Flyback, and Forward configurations. The device operates with a switching frequency of 1 MHz and provides a single output channel capable of delivering 1 A drive current at a 5 V logic level. It features a maximum duty cycle of 50% and functions within an ambient temperature range of 0°C to +70°C. The component is housed in an 8-pin PDIP package designed for through-hole mounting.

DC DC Switching Controllers Feature Summary

• Implements current-mode pulse-width modulation control architecture
• Supports versatile power conversion topologies such as flyback and forward
• Provides high-frequency switching capability for compact magnetic designs

DC DC Switching Controllers Applications

• Isolated flyback power supply regulation
• Constant-voltage and constant-current output control
• General-purpose DC-DC switching converter design

DC DC Switching Controllers Procurement Notes

Verify the specific revision code and manufacturing date code against the latest Texas Instruments documentation to ensure compatibility with current production standards. Confirm that the through-hole DIP-8 package meets your board layout requirements. Check for any end-of-life notices or obsolescence warnings from the manufacturer before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component when a low-power current-mode controller is required for isolated or non-isolated topologies. Ensure the application demands a 1 MHz switching frequency and a 50% maximum duty cycle limit. Verify that the through-hole packaging aligns with the assembly process and that the operating temperature range suits the environmental conditions.

DC DC Switching Controllers Part Context

This part belongs to the UCC3800 series of low-power BiCMOS PWM controllers. It shares functional similarities with other members like the UCC3800D and UCC3801N but differs in package type and specific electrical characteristics such as maximum duty cycle limits. The series is designed for efficient power management in various industrial and consumer applications.

DC DC Switching Controllers Replacement Considerations

The UCC3800D serves as a surface-mount alternative within the same family. Verify pinout compatibility and electrical parameter alignment before substitution. No direct public substitute part numbers are confirmed for cross-manufacturer replacement.