UC2842ADWTR

Power Supply Controllers, Monitors Overview

The UC2842ADWTR is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance DC-DC converter 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 96% and includes an on-board oscillator with trim capability. It provides a regulated 5V output for the internal circuitry and delivers a peak output drive current of 1A. The component is housed in a 16-SOIC package and functions across an operating temperature range of -40°C to +85°C.

Power Supply Controllers, Monitors Feature Summary

• Supports boost, flyback, forward, half-bridge, and push-pull topologies
• Integrated current-mode control architecture for rapid line and load transient response
• On-chip oscillator with frequency trim functionality
• Built-in undervoltage lockout with hysteresis

Power Supply Controllers, Monitors Applications

• High-density point-of-load (POL) converters
• Forward converters
• Flyback power supplies
• Half-bridge and push-pull topologies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'DWTR' corresponds to the 16-pin SOIC package and tape-and-reel packaging format. Confirm that the automotive or industrial grade designation matches the system requirements. Ensure compatibility with the intended PCB footprint and thermal management strategy during integration.

Power Supply Controllers, Monitors Selection Notes

Select this component when a single-channel current-mode controller is required for isolated or non-isolated topologies. It is suitable for designs needing a wide input voltage range and robust protection features. Consider alternative pin counts if fewer outputs are sufficient for the application.

Power Supply Controllers, Monitors Part Context

This part belongs to the UC284x family of current-mode PWM controllers from Texas Instruments. It shares functional similarities with other members like the UC2842D but differs in package configuration and manufacturing lot specifications. The family is widely used in general-purpose power supply designs requiring reliable regulation.

Power Supply Controllers, Monitors Replacement Considerations

Direct substitutes include UC2842ADW and UC2842DW variants from Texas Instruments. Cross-manufacturer equivalents may require verification of pin compatibility and electrical parameter alignment.