UC2872NG4

Overview

The UC2872NG4 is a resonant lamp ballast controller manufactured by Texas Instruments, designed for CCFL and neon lamps. It operates within a supply voltage range of 24 V to 24 V and supports a maximum output current of 20 mA. The device functions at a working frequency of 200 kHz with a power dissipation of 1 W. It is housed in an SSOP-16 package suitable for SMD/SMT installation. The operational temperature range spans from 0°C to +70°C, and it features humidity sensitivity compliance.

Feature Summary

• Provides resonant lamp ballast control functionality for fluorescent lighting applications
• Integrates display driver capabilities specifically for CCFL and neon lamp types
• Supports surface mount technology via SSOP-16 packaging for compact integration

Applications

• CCFL backlight systems
• Neon lamp ballasts
• Resonant lamp power supplies

Procurement Notes

Verify the specific suffix G4 indicates lead-free status and RoHS compliance against the official datasheet. Confirm the SSOP-16 package dimensions and pinout match the design requirements. Check for moisture sensitivity level (MSL) ratings to ensure proper handling and storage conditions are met during assembly processes.

Selection Notes

Select this component when designing resonant ballast circuits requiring integrated control for cold cathode fluorescent lamps. Ensure the 200 kHz operating frequency aligns with transformer specifications. Verify that the 24 V supply constraint fits the system architecture and that the thermal performance supports the 1 W dissipation limit within the enclosure.

Part Context

This part belongs to the UC3872 series of ballast controllers from Texas Instruments. It serves as a specialized IC for managing resonant tank circuits in lighting applications. The NG4 variant denotes a specific package and environmental compliance configuration within the broader family of display drivers and controllers offered by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers include UC3872M and UC3872MG4. These variants share similar functional characteristics but may differ in package type or trailing suffix specifications. Verify electrical parameters and pin compatibility before substitution.