UC2844DG4

Power Supply Controllers, Monitors Overview

The UC2844DG4 is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance power supply applications. It operates within a supply voltage range of 10V to 30V and supports switching frequencies up to 500 kHz. The device features a maximum duty cycle of 50% and provides a 1A output drive capability. It is housed in a 14-pin SOIC package with an operating temperature range from -40°C to +85°C. Key electrical parameters include 50ns rise and fall times.

Power Supply Controllers, Monitors Feature Summary

• Implements current-mode control architecture for enhanced transient response and simplified compensation.

Power Supply Controllers, Monitors Applications

• Boost converter topologies
• Flyback converter designs
• Forward converter implementations

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'DG4' confirms lead-free status and RoHS compliance as per manufacturer specifications. Confirm the 14-pin SOIC package variant matches the target PCB footprint. Ensure the component meets the required industrial temperature range of -40°C to +85°C for the intended application environment.

Power Supply Controllers, Monitors Selection Notes

Select this component when a 500kHz switching frequency and 50% maximum duty cycle are sufficient for the design requirements. It is suitable for single-output applications requiring 1A drive strength. Consider alternative packages or variants if higher temperature ratings or different pin counts are necessary.

Power Supply Controllers, Monitors Part Context

This part belongs to the UC2844 series of current-mode PWM controllers. It shares functional similarities with other members like UC2844AN but differs in packaging and manufacturing revisions. The DG4 suffix indicates a specific tape-and-reel or tube configuration with lead-free attributes compared to older non-G4 versions.

Power Supply Controllers, Monitors Replacement Considerations

• UC2844AD