UC2825QTR

DC DC Switching Controllers Overview

The UC2825QTR is a high-speed PWM controller from Texas Instruments, packaged in a 20-PLCC (9x9) surface-mount format. It supports multiple topologies including Boost, Flyback, Forward, Full Bridge, Half Bridge, and Push-Pull. The device features a switching frequency range of 340 kHz to 460 kHz with a maximum duty cycle of 80%. It provides two positive outputs with a transistor driver type, operating within a temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Supports versatile power converter topologies such as boost, flyback, forward, full bridge, half bridge, and push-pull configurations.
• Integrates comprehensive control features including current limiting, enable functionality, frequency control, slope compensation, and soft-start capabilities.

DC DC Switching Controllers Applications

• Boost DC-DC converters
• Flyback power supplies
• Forward converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific package marking and date code against the official Texas Instruments datasheet to ensure authenticity. Confirm that the 20-PLCC footprint matches the target PCB design requirements. Check for any recent product change notifications regarding pinout or electrical parameter updates before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this component when a multi-topology solution is required for industrial or commercial power applications. Ensure the operating frequency range aligns with external inductor and capacitor selections. Verify thermal management strategies for the PLCC package under maximum load conditions within the specified ambient temperature range.

DC DC Switching Controllers Part Context

This part belongs to the UC2825 series of voltage-mode BICMOS quad surface-mount DC-DC controllers. It is designed for high-performance applications requiring precise PWM control across various isolated and non-isolated power supply architectures. The Q suffix indicates a qualified version suitable for broader environmental operating conditions compared to standard variants.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include UC2825Q and UC2825QDWREP. Verify pin compatibility and electrical specifications before substitution. Note that UC2825QTR is a tape-and-reel variant of the UC2825Q.