Topologie | Gegentaktwandler (Halbbrücken) |
Eingangsspannung | 230 V |
Ausgang 1 | 0.12 A |
IC-Revision | 2 |
The UBA20262 is a high-voltage integrated circuit designed to control high power self-ballasted Compact Fluorescent Lamp (CFL) lighting applications. The UBA20260 is a controller circuit with advanced features for step dimming and a lamp current controlled boost feature for boosting cold (amalgam) CFLs.The controller contains a half-bridge drive function for CFLs, a high-voltage level-shift circuit with integrated bootstrap diode, an oscillator function, a current control function for preheat and burn, a timer function and protection circuits. The UBA20260 is supplied using the dV/dt current charge supply circuit from the half-bridge circuit.Remark: The mains voltages given in this data sheet are AC voltages
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
4-level step dimming adjustment using a standard on/off mains switch
Adjustable memory retention time for step dimming
Adjustable minimum dimming level
2.5 Protection
OverTemperature Protection (OTP)
Capacitive Mode Protection (CMP)
OverPower Protection (OPP)
OverCurrent Protection (OCP) in both boost and burn states
Power-down function
2.6 Other features
Current controlled operation in both boost and burn state
External power-down function
Note:
4.7 mH mains filter inductor; ISAT = 300 mA
2000/1.3/1.3/ 22 µH lamp inductor