UBA2015 PHILIPS [NXP Semiconductors], UBA2015 Datasheet - Page 10

• Manufacturer Part Number: UBA2015
• Description: 600 V fluorescent lamp driver with PFC, linear dimming and boost function
• Manufacturer: PHILIPS [NXP Semiconductors]

NXP Semiconductors
UBA2016A_15_15A
Product data sheet
7.4 Fluorescent lamp control
The IC incorporates all the regulation and control needed for the fluorescent lamp(s), such
as filament preheat, ignition frequency sweep, lamp voltage limitation, lamp current
control, start-up boost, dimming, end-of-life detection, overcurrent protection and hard
switching limiting.
In the UBA2016A/15/15A, 7 different operating states can be distinguished. In each state
the IC acts in a specific way, as described in the next paragraphs.
possible transitions between the states with their conditions.
Fig 8.
V
SHHB
+ V
V
V
V
V
Oscillator, driver and half-bridge voltages
GHHB
V
V
SHHB
SHHB
GLHB
V
VDD
VDD
BUS
CF
0
0
0
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 16 November 2011
t
no
UBA2016A/15/15A
600 V fluorescent lamp driver
Figure 9
© NXP B.V. 2011. All rights reserved.
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