IR2161PBF

Lighting, Ballast Controllers Overview

The IR2161PBF is a dedicated intelligent half-bridge driver IC designed for halogen converter (electronic transformer) applications. It integrates all necessary components for driving high-side and low-side MOSFETs in a resonant tank circuit. The device operates with a supply voltage range of 11.5 V to 20 V and provides an output current capability of 300 mA. It supports switching frequencies between 34 kHz and 70 kHz, featuring built-in protection mechanisms such as under-voltage lockout and shoot-through prevention to ensure reliable operation in lighting ballast systems.

Lighting, Ballast Controllers Feature Summary

• Integrates high-side and low-side drivers with bootstrap diode for half-bridge configurations
• Includes dedicated logic for resonant tank control and frequency regulation
• Features built-in protection against shoot-through and under-voltage conditions

Lighting, Ballast Controllers Applications

• Halogen electronic transformers
• Lighting ballast controllers
• Resonant half-bridge power supplies

Lighting, Ballast Controllers Procurement Notes

Verify the specific suffix PBF indicates lead-free RoHS compliance before procurement. Confirm the package type matches the target PCB footprint, as other variants like SPBF exist in SOIC-8. Check current lifecycle status, as older driver models may be subject to obsolescence notices from Infineon Technologies.

Lighting, Ballast Controllers Selection Notes

Select this component when designing halogen converters requiring integrated resonant control rather than discrete gate driving. Ensure the application frequency falls within the 34 kHz to 70 kHz operational window. Verify that the 300 mA output current is sufficient for the gate charge requirements of the selected power MOSFETs in the half-bridge topology.

Lighting, Ballast Controllers Part Context

This part belongs to the IR216x family of intelligent half-bridge drivers specialized for lighting applications. Unlike general-purpose gate drivers, it incorporates specific timing and control logic optimized for resonant tank circuits found in electronic transformers. It simplifies design by reducing the component count required for high-frequency switching management.

Lighting, Ballast Controllers Replacement Considerations

Direct substitutes include the IR2161SPBF for surface mount implementations. Other compatible devices in the same family should be evaluated for pin compatibility and thermal performance if form-factor changes are acceptable.