UCC28084PW

DC DC Switching Controllers Overview

The UCC28084PW is an 8-pin current-mode push-pull PWM controller manufactured by Texas Instruments, designed for half-bridge and push-pull topologies. It features programmable slope compensation to ensure stable operation under varying load conditions. The device supports a maximum switching frequency of 1 MHz and delivers up to 50% duty cycle. It includes a 3.5 ms soft-start timer and offers undervoltage lockout thresholds at 4.3 V and 4.1 V. Operating within a temperature range of -40°C to +85°C, it utilizes an 8-TSSOP surface-mount package.

DC DC Switching Controllers Feature Summary

• Current-mode control architecture with programmable slope compensation
• Integrated 3.5 ms soft-start timer for controlled startup
• Dual undervoltage lockout thresholds at 4.3 V and 4.1 V
• Supports half-bridge and push-pull converter topologies

DC DC Switching Controllers Applications

• Half-bridge DC-DC converters
• Push-pull power supply designs
• General-purpose step-up/step-down voltage regulation

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized channels due to the product's end-of-life status. Confirm that the TSSOP-8 package matches your PCB footprint requirements. Ensure compatibility with existing design parameters before replacement, as availability may be limited in the secondary market.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring precise current-mode control in push-pull or half-bridge configurations. Consider the 1 MHz maximum switching frequency and 50% duty cycle limit when designing magnetic components. Verify that the operating temperature range meets environmental specifications.

DC DC Switching Controllers Part Context

The UCC28084 belongs to the UCC2808x series of current-mode PWM controllers from Texas Instruments. It is part of the broader UC family, sharing functional similarities with other devices like the UCC2808AN-1 but distinguished by its specific package and feature set tailored for modern surface-mount applications.

DC DC Switching Controllers Replacement Considerations

UCC28084PWR is listed as a manufacturer-recommended substitute. Verify pinout and electrical parameter compatibility before implementation.

DC DC Switching Controllers FAQ

What is the maximum duty cycle supported by the UCC28084PW?

The device supports a maximum duty cycle of 50%, suitable for push-pull and half-bridge topologies.

Does the UCC28084PW include soft-start functionality?

Yes, it features an integrated 3.5 ms soft-start timer to limit inrush current during startup.