Datasheet Summary
LT1249 Power Factor Controller
Features s s
DESCRIPTIO s s s s s s s s
Standard 8-Pin Packages High Power Factor Over Wide Load Range with Line Current Averaging International Operation Without Switches Instantaneous Overvoltage Protection Minimal Line Current Dead Zone Typical 250µA Start-Up Supply Current Rejects Line Switching Noise Synchronization Capability Low Quiescent Current: 9mA Fast 1.5A Peak Current Gate Driver
The 8-pin LT ®1249 provides active power factor correction for universal offline power systems with very few external parts. By using fixed high frequency PWM current averaging without the need for slope pensation, the LT1249 achieves far lower line current...