UC2843AD8G4

Power Supply Controllers, Monitors Overview

The UC2843AD8G4 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 12 V to 28 V and features a fixed switching frequency of 500 kHz. The device supports Boost, Flyback, and Forward topologies with a maximum duty cycle of 100%. It provides a single output capable of sourcing up to 200 mA. The component functions reliably across an operating temperature range from -40°C to +85°C. Packaged in an SOIC-8 surface-mount format, it exhibits rise and fall times of 50 ns.

Power Supply Controllers, Monitors Feature Summary

• Implements current-mode pulse width modulation control architecture
• Supports multiple converter topologies including Boost, Flyback, and Forward
• Features high-speed output drivers with 50 ns transition times
• Provides robust operation across extended industrial temperature ranges

Power Supply Controllers, Monitors Applications

• Industrial power supply systems
• DC-to-DC converter designs
• Battery charging equipment
• Telecommunications power modules

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'D8G4' against official Texas Instruments documentation to confirm package type and RoHS compliance status. Ensure the ordering part number matches the required tape and reel or cut tape configuration. Cross-reference the manufacturer's latest datasheet for any recent design changes or lifecycle updates before finalizing procurement specifications.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring precise current-mode control and high-frequency operation. Consider the 200 mA output drive capability when sizing external MOSFETs. Verify that the input voltage range aligns with the system's supply rails. Evaluate thermal management requirements given the SOIC-8 package constraints and specified operating temperature limits.

Power Supply Controllers, Monitors Part Context

This device belongs to the UCx84x series of switching controllers, widely utilized in power management integrated circuits. It serves as a core control element in various DC-DC conversion architectures. The UC2843 variant specifically addresses needs for efficient energy transfer in compact power stages. Its design facilitates stable performance in demanding electronic environments.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers include UC2843ADTR and UC2843BDR2G. Verify pin compatibility and electrical parameters before substitution.