UCC287501DBVR

AC DC Converters, Offline Switchers Overview

The UCC287501DBVR is a current-mode flyback controller manufactured by Texas Instruments, designed for offline AC/DC power supply applications. It operates within an input voltage range of 10 V to 26 V and supports a maximum duty cycle of 80%. The device functions at a fixed switching frequency of 65 kHz and is rated for operation between -40°C and +125°C. Packaged in a compact SOT-23-6 surface-mount format, this component serves as a core element in isolated power conversion systems requiring robust control and efficiency.

AC DC Converters, Offline Switchers Feature Summary

• Implements current-mode control architecture specifically optimized for flyback converter topologies
• Provides integrated secondary-side regulation capabilities to eliminate the need for optical couplers
• Supports continuous conduction mode (CCM) and discontinuous conduction mode (DCM) operations
• Features built-in protection mechanisms including overvoltage, overtemperature, and overpower safeguards

AC DC Converters, Offline Switchers Applications

• Isolated offline AC/DC power supplies
• Battery chargers and adapters
• Industrial AC/DC converters for grid infrastructure
• Consumer electronics such as televisions, printers, and set-top boxes
• Smart meters and micro-inverters

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'DBVR' against the manufacturer's official datasheet to confirm the exact tape-and-reel packaging configuration and quantity per reel. Ensure that the ordering part number matches the required package type and environmental rating. Cross-reference the manufacturer's latest documentation to confirm RoHS compliance status and any recent product change notices affecting pinout or electrical characteristics before finalizing procurement orders.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring secondary-side regulation to reduce bill-of-materials costs associated with optocouplers. The fixed 65 kHz frequency simplifies magnetic component selection while maintaining acceptable noise levels. The wide operating temperature range ensures reliability in industrial environments. Consider the SOT-23-6 package constraints regarding thermal dissipation and PCB layout space when integrating into high-power density designs.

AC DC Converters, Offline Switchers Part Context

This device belongs to the UCC2875x family of secondary-side regulated flyback controllers from Texas Instruments. These components are engineered to replace traditional primary-side controlled solutions, offering improved line and load regulation without feedback isolation barriers. The family targets cost-sensitive consumer and industrial applications where efficiency and transient response are critical performance metrics.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers: UCC287502DBVR.