UCC3801DG4

DC DC Switching Controllers Overview

The UCC3801DG4 is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It supports multiple switching topologies including Boost, Buck, Flyback, and Forward configurations. The device features a maximum switching frequency of 1 MHz and offers a maximum duty cycle of 50 percent. It operates within a temperature range of 0°C to +70°C and utilizes an SOIC-8 surface-mount package.

DC DC Switching Controllers Feature Summary

• Supports versatile DC-DC converter topologies such as boost, buck, flyback, and forward
• Utilizes low-power BiCMOS technology for efficient current-mode PWM control
• Provides high-speed switching capabilities with fast rise and fall times

DC DC Switching Controllers Applications

• High-frequency isolated power supplies
• Battery chargers
• Adapters and wall plugs
• Distributed power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix DG4 indicates lead-free compliance and RoHS standards before procurement. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Check current availability status as supply levels may fluctuate. Ensure the operating temperature range meets your environmental specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing converters requiring flexible topology support in a compact surface-mount package. The 1 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 50 percent maximum duty cycle limitation when selecting transformer turns ratios for your specific voltage conversion requirements.

DC DC Switching Controllers Part Context

This part belongs to the UCC3801 series of low-power current-mode PWM controllers. It is designed for applications where efficiency and component count are critical. The device integrates essential control functions into a single chip, reducing external component requirements for standard converter designs.

DC DC Switching Controllers Replacement Considerations

The UCC3801N serves as a through-hole alternative within the same functional family. Verify pin compatibility and thermal performance differences between the SOIC-8 and PDIP packages when substituting.