UC2846QTR

DC DC Switching Controllers Overview

The UC2846QTR is a current-mode PWM controller manufactured by Texas Instruments, designed for versatile power supply topologies including Boost, Flyback, Forward, Full Bridge, Half Bridge, and Push-Pull configurations. It features two outputs with a maximum duty cycle of 50% and a switching frequency of 450 kHz. The device provides an output drive current of 500 mA, with rise and fall times of 50 ns each. It operates within a temperature range of -40°C to +85°C and is housed in a PLCC-20 surface-mount package.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies such as Boost, Flyback, and Push-Pull
• Provides high-current gate drive capability for efficient switching control
• Operates with a fixed maximum duty cycle limit for safety

DC DC Switching Controllers Applications

• Industrial power supplies
• Telecommunications equipment
• Battery chargers

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific revision level matches design requirements. Check for moisture sensitivity handling instructions due to the PLCC package type. Ensure compliance with relevant environmental directives if required for the target market. Validate pinout compatibility during integration planning.

DC DC Switching Controllers Selection Notes

Select this component when a robust current-mode controller is needed for isolated or non-isolated converters requiring up to 500 mA drive current. Consider the PLCC-20 package constraints for PCB layout. Evaluate thermal performance within the specified industrial temperature range. Compare against UC3846 series variants if different packaging or commercial temperature ranges are preferred.

DC DC Switching Controllers Part Context

This part belongs to the UC2846 family of current-mode PWM controllers from Texas Instruments. It shares functional similarities with other members like the UC2846DWTR but differs in packaging and reel specifications. The Q suffix typically denotes a specific quality or qualification grade within the manufacturer's lineup.

DC DC Switching Controllers Replacement Considerations

UC2846DWTR offers similar electrical characteristics in an SOIC-16 package. UC2846NG4 provides a PDIP-16 through-hole alternative. Verify pin-to-pin compatibility and thermal dissipation differences before substitution.