UCC28C43DGKRG4

DC DC Switching Controllers Overview

The UCC28C43DGKRG4 is a BiCMOS low-power current-mode PWM controller from Texas Instruments. It supports Boost, Flyback, and Forward topologies with a switching frequency of 1 MHz. The device features a maximum duty cycle of 100% and an output voltage rating of 18 V. It provides 1 A output current capability within a VSSOP-8 package. Operating temperatures range from -40°C to +105°C. The component includes UVLO thresholds of 8.4 V/7.6 V.

DC DC Switching Controllers Feature Summary

• Supports 100% duty cycle operation for continuous conduction mode applications
• Integrates current-mode control architecture for simplified feedback loop compensation
• Features low quiescent current consumption suitable for power-sensitive designs

DC DC Switching Controllers Applications

• Industrial power supplies
• Battery chargers
• Adapters and wall plugs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm lead-free status and RoHS compliance details. Ensure the VSSOP-8 package dimensions match your PCB footprint requirements. Confirm that the operating temperature range meets your environmental specifications before finalizing the procurement order.

DC DC Switching Controllers Selection Notes

Select this component when a low-power current-mode solution is required for isolated or non-isolated converters. The 1 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the VSSOP-8 package size constraints and thermal dissipation capabilities relative to your board layout and ambient conditions.

DC DC Switching Controllers Part Context

This part belongs to the UCC28C4x series of low-power PWM controllers. It shares functional similarities with other members like the UCC28C40 and UCC28C43 variants but differs in package type and specific electrical tolerances. The DGKR suffix indicates the tape-and-reel packaging format for automated assembly processes.

DC DC Switching Controllers Replacement Considerations

The UCC28C43DG4 is a direct pin-compatible alternative with potentially different packaging or compliance attributes. Verify that any substitute maintains the same 1 MHz frequency and 1 A drive current capabilities to ensure circuit performance consistency.