IR2156

Lighting, Ballast Controllers Overview

The IR2156 is a half-bridge gate driver integrated with a programmable ballast controller, designed for fluorescent lamp applications. It operates within a supply voltage range of 10 V to 25 V and delivers output currents up to 400 mA. The device features a 14-lead SOIC package and supports operating temperatures from -25°C to +125°C. Key electrical parameters include rise times of approximately 110 ns and fall times around 55 ns, with a power dissipation rating of 1 W.

Lighting, Ballast Controllers Feature Summary

• Integrates high-voltage half-bridge gate driver with programmable oscillator and state diagram for complete ballast control
• Features programmable preheat frequency, preheat time, dead-time, and run frequency
• Includes internal ignition ramp and programmable over-current threshold protection
• Provides comprehensive protection against lamp failure, filament issues, and DC bus under-voltage

Lighting, Ballast Controllers Applications

• Fluorescent lamp electronic ballasts
• Programmable lighting control systems
• Half-bridge resonant converter topologies

Lighting, Ballast Controllers Procurement Notes

Verify the specific suffix (e.g., STRPBF) for packaging details such as tape and reel quantities. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Check current lifecycle status, as some variants may be marked as not recommended for new designs. Ensure compatibility with existing PCB footprints for the 14-lead SOIC package.

Lighting, Ballast Controllers Selection Notes

Select this component when a combined gate driver and ballast controller is required to reduce bill of materials. Consider the programmable nature of preheat and run frequencies for meeting specific lighting standards. Evaluate the 400 mA output drive capability against the connected MOSFET or IGBT requirements. Verify that the 10 V to 25 V supply range aligns with the system's power architecture.

Lighting, Ballast Controllers Part Context

The IR2156 belongs to Infineon's family of integrated lighting drivers, specifically targeting compact fluorescent lamp (CFL) and linear fluorescent ballast designs. It consolidates functions typically requiring separate oscillator and driver ICs into a single package. This integration simplifies circuit design by providing built-in timing controls and protection mechanisms essential for reliable lamp operation.

Lighting, Ballast Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and functional equivalence with alternative ballast controllers if direct replacements are sought.