IR2520D Adaptive Ballast Controller

The IR2520D(S) is a complete adaptive ballast controller and 600V half-bridge driver integrated into a single IC for fluorescent lighting applications.

The IC includes adaptive zero-voltage switching (ZVS), internal crest factor over-current protection, as well as an integrated bootstrap FET. The heart of this IC is a voltage controlled oscillator with externally programmable minimum frequency. All of the necessary ballast features are integrated in a small 8-pin DIP or SOIC package.

Features IR2520D Adaptive Ballast Controller

• 600V Half Bridge Driver

• Integrated Bootstrap FET

• Adaptive zero-voltage switching (ZVS)

• Internal Crest Factor Over-Current Protection

• 0 to 6VDC Voltage Controlled Oscillator

• Programmable minimum frequency

• Micropower Startup Current (80uA)

• Internal 15.6V zener clamp on Vcc

• Small DIP8/SO8 Package

• Also available LEAD-FREE (PbF)