UC3872MG4

Overview

The UC3872MG4 is a resonant lamp ballast controller manufactured by Texas Instruments, designed for CCFL and neon lamp applications. It operates within a supply voltage range of 4.5V to 24V and features a maximum output current of 20 mA. The device functions at a working frequency of 200 kHz with a typical operating supply current of 6 mA. It dissipates up to 1 W of power and supports surface-mount installation in an SSOP-16 package. The component is rated for an ambient temperature range from 0°C to +70°C.

Feature Summary

• Integrated control logic for resonant lamp ballast topologies
• Supports cold cathode fluorescent and neon lamp driving requirements
• Surface-mount compatible packaging for automated assembly

Applications

• CCFL backlight systems
• Neon lamp drivers
• Resonant lamp ballast circuits

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm lead-free status and RoHS compliance details. Ensure the SSOP-16 package dimensions match the target PCB footprint. Confirm moisture sensitivity level handling requirements prior to soldering. Cross-reference the datasheet revision date to ensure all electrical characteristics align with current design specifications.

Selection Notes

Select this component when designing resonant ballasts for CCFL or neon lamps requiring integrated control. The SSOP-16 package suits space-constrained surface-mount designs. Verify that the 200 kHz operating frequency and 24V maximum supply voltage align with the system's power stage and transformer specifications. Consider thermal dissipation limits given the 1 W power rating in enclosed environments.

Part Context

This part belongs to the UC3872 series of display drivers and controllers. It is categorized under ballast controllers within Texas Instruments' power management portfolio. The device is distinct from switching controllers like the UC3876N, focusing specifically on resonant lamp applications rather than general-purpose phase-shifted full-bridge topologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.