Electronic Ballast Controller 8-Pin SOIC T/R

This IC takes full advantage of IR’s patented ballast and high-voltage technologies to realize a simple, highperformance dimming ballast solution. A single high-voltage pin senses the half-bridge current and voltage to perform necessary ballast protection functions. The DC dim input voltage reference and the AC lamp current feedback have been coupled together allowing a single pin to be used for dimming. Combining these high-voltage control algorithms together with a simple dimming method in a single 8-pin IC results in a large reduction in component count, an increase in manufacturability and reliability, a reduced design cycle time, while maintaining high dimming ballast system performance.

• Ballast control plus half-bridge driver in one IC
• Single-stage topology (no PFC stage required)
• High PF and low THD
• Preheat, ignition and running lamp modes
• Closed-loop lamp current control
• Half-bridge NZVS protection
• Adaptive dead-time
• Lamp insert auto-restart
• Internal bootstrap MOSFET
• Micro-power start-up current
• 15.6V internal zener clamp on VCC
• Excellent ESD and latch immunity
• RoHS compliant
• 8-pin S08 package