UC2847DW

DC DC Switching Controllers Overview

The UC2847DW is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance power conversion applications. It supports multiple topologies including Boost, Flyback, Forward, Full Bridge, Half Bridge, and Push-Pull configurations. The device features two output channels with a maximum switching frequency of 500 kHz and a maximum duty cycle of 50%. It operates within a supply voltage range of 7 V to 40 V and delivers an output current of 500 mA. The component functions reliably across a temperature range of -40°C to +85°C and is housed in a 16-pin SOIC package.

DC DC Switching Controllers Feature Summary

• Supports versatile converter topologies such as push-pull, half-bridge, full-bridge, forward, flyback, and boost.
• Utilizes current-mode control architecture for precise regulation and fast transient response.
• Provides dual output channels capable of driving external power switches.

DC DC Switching Controllers Applications

• Push-pull DC-DC converters
• Half-bridge power supplies
• Full-bridge isolated converters

DC DC Switching Controllers Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the package type matches the required SOIC-16 specification. Check for moisture sensitivity labeling if storage conditions are critical. Ensure the operating temperature range meets the application requirements. Cross-reference datasheet revisions to confirm feature compatibility.

DC DC Switching Controllers Selection Notes

Select this component when designing multi-output or bridge-type converters requiring current-mode control. Evaluate the 500 kHz switching limit against thermal and efficiency constraints. Consider the 50% duty cycle restriction inherent to the topology. Verify input voltage stability within the 7 V to 40 V operational window. Assess the need for dual-channel drive capability versus single-channel alternatives.

DC DC Switching Controllers Part Context

This device belongs to the UC2846/UC2847 series of current-mode PWM controllers from Texas Instruments. It shares architectural similarities with other members of the family but offers specific pinout and functional variations tailored for bridge and push-pull applications. The series is widely used in industrial and commercial power supply designs.

DC DC Switching Controllers Replacement Considerations

The UC2846DW is a related variant within the same product family. Verify pin compatibility and functional equivalence before substitution. Consult the official datasheet for detailed comparison of electrical characteristics and timing parameters.