UCC28701DBVR

AC DC Converters, Offline Switchers Overview

The UCC28701DBVR is a constant-voltage, constant-current PWM controller with primary-side regulation designed for flyback converters. It operates within a supply voltage range of 9 V to 35 V and delivers an output current of 25 mA. The device supports a switching frequency from 875 Hz to 140 kHz and features a maximum duty cycle of 99%. It functions in isolated configurations with a single output, utilizing silicon technology. The component operates between -20°C and +125°C and draws a working supply current of 2.1 mA.

AC DC Converters, Offline Switchers Feature Summary

• Implements primary-side regulation to eliminate secondary-side feedback components
• Provides combined constant-voltage and constant-current control modes
• Supports discontinuous conduction mode operation for simplified design

AC DC Converters, Offline Switchers Applications

• Universal AC input power supplies
• Adapter designs requiring primary-side regulation
• Flyback converter topologies

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix DBVR corresponds to the SOT-23-6 package and reel/cut-tape availability. Confirm RoHS compliance status through official Texas Instruments documentation. Ensure the part number matches the required operating temperature range and electrical specifications for the target application before procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring primary-side regulation in flyback topologies. Consider the 9 V to 35 V supply voltage range and 140 kHz maximum switching frequency. Evaluate the 25 mA output current capability against load requirements. Verify compatibility with the SOT-23-6 package constraints and thermal performance needs.

AC DC Converters, Offline Switchers Part Context

This component belongs to the UCC28701 series of AC/DC converters manufactured by Texas Instruments. It is categorized under PMIC - Power Management ICs. The device is part of a family including variants like UCC28700 and UCC28702, sharing similar primary-side regulation features but potentially differing in specific electrical parameters or packaging options.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers include UCC28700, UCC28702, and UCC28703.