UC3872MTR

Overview

The UC3872MTR is a resonant lamp ballast controller manufactured by Texas Instruments, designed for CCFL and neon lamps. It operates within a frequency range of 57 kHz to 78 kHz and supports a supply voltage from 4.5 V to 24 V. The device features a maximum output current of 20 mA and consumes 6 mA of operating supply current. It dissipates up to 1 W of power and functions between 0°C and +70°C. Packaged in an SSOP-16 surface-mount format, it includes humidity sensitivity management.

Feature Summary

• Integrated resonant lamp ballast control for display backlighting
• Supports constant current regulation for CCFL and neon lamps
• Surface-mount packaging for automated assembly

Applications

• CCFL backlight controllers for LCD displays
• Neon lamp ballast systems
• Resonant converter driver circuits

Procurement Notes

Verify the specific suffix 'MTR' against official Texas Instruments documentation to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with the specified SSOP-16 footprint and check for RoHS compliance status prior to ordering.

Selection Notes

Select this component for applications requiring integrated resonant ballast control without external PWM complexity. Consider the 57-78 kHz operating range and 20 mA output capability when designing transformer coupling networks. Verify thermal dissipation limits relative to the SSOP-16 package constraints.

Part Context

This part belongs to the UC3872 series of ballast controllers. It shares functional similarities with variants like UC3872MG4 and UC3872DW but differs in packaging and reel configuration. It serves as a specialized solution for lighting control within the broader Texas Instruments display driver portfolio.

Replacement Considerations

Public confirmed substitutes include UC3872MG4 and UC3872DW. Verify pinout compatibility and ensure the replacement variant matches the required packaging type (SSOP vs SOIC) and reel specifications.