UC3872NG4

Overview

The UC3872NG4 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 operating frequency of 200 kHz. The device features a maximum output current of 20 mA and a typical operating supply current of 6 mA. It dissipates up to 1 W of power and functions reliably between 0°C and +70°C. Housed in an SSOP-16 surface-mount package, it includes humidity sensitivity considerations.

Feature Summary

• Integrated control logic specifically engineered for resonant lamp ballast applications
• Supports both CCFL and neon lamp display types with dedicated driver outputs
• Surface-mount SSOP-16 packaging optimized for compact circuit board layouts

Applications

• Cold Cathode Fluorescent Lamp (CCFL) backlighting systems
• Neon lamp ballast controllers
• Display driver circuits requiring resonant topology

Procurement Notes

Verify the specific suffix 'G4' against official Texas Instruments documentation to confirm lead-free status and RoHS compliance details. Ensure the SSOP-16 package variant matches your PCB footprint requirements. Confirm humidity sensitivity handling procedures are integrated into your assembly process as indicated in the specifications. Cross-reference the datasheet revision date to ensure compatibility with your design constraints.

Selection Notes

Select this component when designing resonant ballasts for CCFL or neon displays requiring a 24 V supply. The 200 kHz frequency limit and 20 mA output capability define its operational boundaries. Consider the SSOP-16 package size for space-constrained designs. Verify thermal management needs given the 1 W power dissipation rating and the 0°C to +70°C operating temperature range.

Part Context

The UC3872 belongs to the UC3872 series of ballast controllers from Texas Instruments. This family focuses on resonant lamp driving applications. The NG4 designation indicates a specific package and environmental compliance variant within the broader UC3872 product line, distinct from other pinouts or topologies found in related switching controllers.

Replacement Considerations

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