UCC2580N-4

AC DC Converters, Offline Switchers Overview

The UCC2580N-4 is a single-ended active clamp/reset PWM controller manufactured by Texas Instruments. It operates within an input voltage range of 10 V to 14 V, with a nominal rating of 12 V. The device supports boost, flyback, and forward topologies and features two output channels. Key electrical parameters include a switching frequency of 430 kHz and a maximum duty cycle of 69%. It provides an output current capability of 1.2 A and functions reliably across a temperature range from -40°C to +85°C.

AC DC Converters, Offline Switchers Feature Summary

• Provides auxiliary switch activation complementary to the main power switch drive
• Features programmable deadtime between the activation of each output channel
• Supports single-ended active clamp and reset PWM control modes

AC DC Converters, Offline Switchers Applications

• Offline flyback converter designs
• Forward topology power supplies
• Boost converter applications requiring active clamp reset

AC DC Converters, Offline Switchers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as the PDIP-16 variant may be subject to handling sensitivity. Check for RoHS compliance markings consistent with Green (RoHS & no Sb/Br) specifications. Ensure storage conditions maintain moisture sensitivity level 1 standards prior to soldering.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated active clamp reset functionality in single-ended topologies. Consider the fixed 430 kHz switching frequency when designing magnetic components. Evaluate the 1.2 A output drive capability against gate charge requirements of external MOSFETs. Verify that the required operating temperature range aligns with the specified -40°C to +85°C limits.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC2580 family of single-ended active clamp/reset PWM controllers. It shares functional similarities with other legacy controllers like TL594 but offers enhanced active clamp features. The N-4 suffix indicates a specific pinout and feature set variant within the broader Texas Instruments power management portfolio.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitutes include UCC3580-3, TL1451, TL1451A, TL1453, TL1454A, TL594, TL598, and UC1524A. Verify pin compatibility and electrical parameter alignment before substitution.