IRS2158DPBF

Lighting, Ballast Controllers Overview

The IRS2158DPBF is a fully integrated, self-oscillating half-bridge gate driver and ballast control IC manufactured by Infineon Technologies. Designed for cold cathode fluorescent lamp (CCFL) applications, it operates within a supply voltage range of 11.5 V to 13.5 V. The component features a 16-SOIC surface-mount package and supports dimming functionality. It delivers an output voltage between 12 V and 20 V with a typical operating current of 20 mA. Electrical characteristics include a rise time of 120 ns and a fall time of 50 ns. The device is rated for operation across a temperature range of -40°C to +125°C and has a power dissipation capability of 1.4 W.

Lighting, Ballast Controllers Feature Summary

• Integrates self-oscillating half-bridge driver with ballast control logic
• Supports external dimming control for lighting applications
• Provides high-side and low-side gate drive outputs up to 600V
• Includes protection mechanisms against over-voltage and thermal stress

Lighting, Ballast Controllers Applications

• Cold Cathode Fluorescent Lamp (CCFL) backlights
• Photo-flash drivers
• Ballast control circuits for fluorescent lighting

Lighting, Ballast Controllers Procurement Notes

Verify the specific suffix 'D' indicates the SOIC-16 package variant distinct from other packaging options. Confirm end-of-life status as distribution availability may be restricted or limited to existing stock. Ensure compatibility with the intended CCFL load requirements regarding peak current and voltage ratings before finalizing procurement decisions.

Lighting, Ballast Controllers Selection Notes

Select this component for applications requiring a single-chip solution for CCFL backlighting that combines driving and control functions. Consider the 16-SOIC footprint for surface-mount assembly constraints. Evaluate the 600V rating against the specific lamp string voltage requirements. Verify that the self-oscillating frequency range meets the system's flicker-free performance standards.

Lighting, Ballast Controllers Part Context

The IRS2158 series belongs to Infineon's portfolio of specialized gate drivers designed for lighting applications. Unlike general-purpose drivers, these ICs integrate timing and control logic specifically tuned for fluorescent lamp ballasts. The DPBF designation identifies the leaded SOIC package version within the broader IRS2158 family.

Lighting, Ballast Controllers Replacement Considerations

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