NXP Semiconductors UBA20270
The UBA20270 is a high-voltage power IC intended to control higher powered self ballasted Compact Fluorescent Lamp (CFL) lighting applications. The UBA20270 is a controller circuit with advanced features for dimming and has a lamp current controlled boost feature for boosting cold (amalgam) CFLs. The controller contains a half-bridge drive function for CFL, a high-voltage level-shift circuit with integrated bootstrap diode.| Part No. | UBA20270 |
|---|---|
| Datasheet | UBA20270 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 600V Driver IC |
| Buy | Stock & Price |
FEATURES AND BENEFITS
2.1 Half-bridge features● Integrated high-voltage level-shift function with integrated bootstrap diode 2.2 Preheat and ignition features
● Coil saturation protection during ignition
● Adjustable preheat time
● Adjustable preheat current
● Ignition lamp current detection 2.3 Lamp boost features
● Adjustable boost timing
● Fixed boost current ratio of 1.5
● Gradually boost to burn transition timing 2.4 Dim features
● Continuously variable dimming function for standard phase cut dimmers
● Natural dimming curve by logarithmic correction
● Adjustable Minimum Dimming Level (MDL)
● Controlled lamp ON/OFF NXP Semiconductors UBA20270 600 V Driver IC for dimmable compact fluorescent lamps 2.5 Protection
● OverCurrent Protection (OCP) in boost and burn state
● Capacitive Mode Protection (CMP)
● OverPower Protection (OPP)
● Power-down function
● OverTemperature Protection (OTP) 2.6 Other features
● Current controlled operating in boost and burn state
● External power-down function
● Lamp flicker suppression 3.
