UBA20270 Overview
The UBA20270 is a high-voltage power IC intended to control higher powered self ballasted pact Fluorescent Lamp (CFL) lighting applications. The UBA20270 is a controller circuit with advanced.
UBA20270 Key Features
- Integrated high-voltage level-shift function with integrated bootstrap diode
- Coil saturation protection during ignition
- Adjustable preheat time
- Adjustable preheat current
- Ignition lamp current detection
- Adjustable boost timing
- Fixed boost current ratio of 1.5
- Gradually boost to burn transition timing
- Continuously variable dimming function for standard phase cut dimmers
- Natural dimming curve by logarithmic correction
UBA20270 Applications
- Integrated high-voltage level-shift function with integrated bootstrap diode
- Coil saturation protection during ignition