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NXP Semiconductors Electronic Components Datasheet

UBA20260 Datasheet

600V driver IC

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UBA20260
600 V driver IC for step dimmable CFLs
Rev. 2 — 10 October 2011
Product data sheet
1. General description
The UBA20260 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. 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


NXP Semiconductors Electronic Components Datasheet

UBA20260 Datasheet

600V driver IC

No Preview Available !

NXP Semiconductors
UBA20260
600 V driver IC for step dimmable CFLs
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
3. Applications
Step-dimmable compact fluorescent lamps above 20 W and for universal mains
voltages
4. Ordering information
Table 1. Ordering information
Type number
Package
Name Description
UBA20260T/N1
SO16 Plastic small outline package; 16 leads; body width 3.9 mm
Version
SOT109-1
UBA20260
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 10 October 2011
© NXP B.V. 2011. All rights reserved.
2 of 30


Part Number UBA20260
Description 600V driver IC
Maker NXP
PDF Download

UBA20260 Datasheet PDF






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