IC-Hersteller NXP

IC-Hersteller (95)

NXP UBA20262

600 V and 350 V power IC for step dimmable CFLs

Details

TopologieGegentaktwandler (Halbbrücken)
Eingangsspannung230 V
Ausgang 10.12 A
IC-Revision2

Beschreibung

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

Eigenschaften

  • 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

Typische Anwendungen

  • Step-dimmable compact fluorescent lamps above 20 W and for universal mains

Weiterführende Informationen

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