UC2843AD8

Power Supply Controllers, Monitors Overview

The UC2843AD8 is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance power supply applications. It operates within an input 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 drive current of 1 A. It is housed in an 8-pin SOIC package with dimensions of 4.9 mm length, 3.91 mm width, and 1.58 mm height. The operational temperature range spans from -40 °C to +125 °C, ensuring reliability across various industrial environments.

Power Supply Controllers, Monitors Feature Summary

• Supports Boost, Flyback, and Forward converter topologies
• Provides high peak output drive current for efficient power stage control
• Enables precise regulation through current-mode pulse width modulation

Power Supply Controllers, Monitors Applications

• Industrial power supplies
• DC-to-DC converter designs
• Battery charger systems

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix and tape/reel specifications against the official datasheet before ordering. Confirm that the component meets RoHS compliance requirements for your region. Ensure the SOIC-8 package dimensions align with your PCB footprint constraints. Cross-reference the manufacturer part number to avoid confusion with similar variants in the UC2843 series.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing non-isolated or isolated converters requiring robust current-mode control. It is suitable for applications needing wide input voltage ranges and high thermal stability. Consider the 500 kHz switching frequency for balancing efficiency and component size. Verify compatibility with external MOSFETs and transformer specifications for optimal performance.

Power Supply Controllers, Monitors Part Context

This part belongs to the UC2843 family of current-mode PWM controllers from Texas Instruments. It shares functional similarities with other members like the UC2843AD8TRG4 but differs in packaging and specific suffix designations. The family is widely used in general-purpose power management solutions requiring reliable switching control.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.