UC2825BDWG4

AC DC Converters, Offline Switchers Overview

The UC2825BDWG4 is a high-speed PWM controller manufactured by Texas Instruments, designed for versatile switching power supply applications. It supports multiple topologies including Boost, Flyback, Forward, Half Bridge, and Push-Pull configurations. The device features two outputs with a maximum duty cycle of 50 percent and an output voltage of 5.1 V. It operates at a switching frequency of 1 MHz and provides an output current capability of 2 A. The component functions within a temperature range of -40 C to +85 C and is housed in a SOIC-16 surface mount package.

AC DC Converters, Offline Switchers Feature Summary

• Supports diverse converter topologies such as Boost, Flyback, Forward, Half Bridge, and Push-Pull
• Features high-speed operation with a 1 MHz switching frequency and fast transition times
• Includes integrated control characteristics like current limiting, frequency control, ramp compensation, and soft start

AC DC Converters, Offline Switchers Applications

• High-frequency DC-DC converters
• Flyback power supplies
• Forward converter designs
• Half-bridge and push-pull power stages

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free status as per Texas Instruments standards. Confirm the SOIC-16 package dimensions and pinout match your PCB footprint requirements. Ensure the operating voltage range aligns with your system's power supply constraints. Check for any moisture sensitivity level restrictions during storage and reflow soldering processes.

AC DC Converters, Offline Switchers Selection Notes

Select this component when a high switching frequency of 1 MHz is required to minimize passive component size. It is suitable for designs needing support for multiple topologies without changing the controller IC. Consider the 50 percent maximum duty cycle limitation for your specific transformer or inductor design. Verify that the 2 A output drive capability meets the gate charge requirements of your external power switches.

AC DC Converters, Offline Switchers Part Context

The UC2825BDWG4 belongs to the UC2825A series of switching controllers from Texas Instruments. This series is part of the broader PMIC portfolio focused on power management and regulation. The 'B' designation typically denotes a specific performance grade or variant within the UC2825 family, while 'DWG4' specifies the SOIC-16 surface mount package and RoHS-compliant manufacturing process.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers include UC2825DW and UC2825ADW. These variants share similar functional characteristics but may differ in package type or specific electrical tolerances. Always verify datasheet parameters before substitution.