UBA2211BP/N1,112

Overview

The UBA2211BP/N1,112 is a half-bridge power integrated circuit manufactured by NXP Semiconductors. It is designed for driving compact fluorescent lamps (CFLs). The device integrates high-voltage supply and bootstrap diode functions. It supports RMS lamp current control and offers protection features including saturation current protection, overtemperature protection, and capacitive mode protection. The component is housed in a PDIP package.

Feature Summary

• Integrated half-bridge power transistors with bootstrap diode
• RMS lamp current control capability
• Built-in saturation current and overtemperature protection

Applications

• Compact fluorescent lamps up to 23 W for 120 V AC indoor applications
• Compact fluorescent lamps up to 23 W for 120 V AC outdoor applications

Procurement Notes

Verify the obsolete status of this part number before procurement planning. The manufacturer has discontinued production of the UBA2211BP/N1,112. Availability is limited to existing stock or secondary market sources. Confirm lead times and authenticity carefully when sourcing from non-direct distributors. Ensure compatibility with replacement components if redesigning the system.

Selection Notes

Select this component only for legacy systems requiring specific CFL driver characteristics. Consider the discontinuation status when designing new products. Evaluate alternative drivers that offer similar integration levels and protection schemes. Verify voltage ratings and package compatibility with existing PCB layouts. Assess long-term supply chain stability for maintenance requirements.

Part Context

This IC belongs to the UBA221x family of half-bridge power ICs for CFL lamps. The family provides easy integration of lamp loads across various burner powers and mains voltages. Similar parts include the UBA2212 series, which shares functional similarities but may differ in specific electrical parameters or package options. These devices are specialized for lighting control applications.

Replacement Considerations

Public confirmed substitute part numbers: UBA2212CP/1, UBA2212CT/1.