UC3842AD8TRG4

Power Supply Controllers, Monitors Overview

The UC3842AD8TRG4 is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance offline and DC-to-DC converter applications. It operates within a supply voltage range of 12 V to 28 V and supports switching frequencies up to 500 kHz. The device features a maximum duty cycle of 100% and provides an output current capability of 200 mA. It is housed in an SOIC-8 surface-mount package and functions across a temperature range of 0°C to +70°C.

Power Supply Controllers, Monitors Feature Summary

• Supports multiple power conversion topologies including Boost, Buck, Flyback, and Forward configurations.
• Enables precise regulation through current-mode control architecture with integrated soft-start functionality.

Power Supply Controllers, Monitors Applications

• Offline AC-DC power supplies
• Forward converters
• Flyback converters
• Buck and Boost DC-DC converters

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'G4' indicates compliance with RoHS standards as documented in official specifications. Confirm that the SOIC-8 package matches the target PCB footprint requirements. Ensure handling procedures account for moisture sensitivity levels specified in the datasheet to prevent damage during assembly processes.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing single-output converters requiring current-mode control and a maximum duty cycle of 100%. It is suitable for applications needing operation between 12 V and 28 V with a 500 kHz switching frequency limit. Consider the SOIC-8 package constraints and the 200 mA output drive capability for gate driver selection.

Power Supply Controllers, Monitors Part Context

This part belongs to the UC3842A series of current-mode PWM controllers from Texas Instruments. It shares functional similarities with other members like the UC3842AD8TR but includes the 'G4' suffix denoting specific manufacturing or compliance variations. It serves as a core control element in various switched-mode power supply designs.

Power Supply Controllers, Monitors Replacement Considerations

The UC3842AD8TR is listed as an alternative variant within the same product family. Verify if the absence of the 'G4' suffix impacts regulatory compliance requirements such as RoHS status before substitution.