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UBA2025
CFL power IC
Rev. 01 — 16 October 2009
Product data sheet
1. General description
The UBA2025 is a high voltage power IC intended to drive and control a Compact
Fluorescent Lamp (CFL). It contains a half bridge power circuit, an oscillator, and a control
circuit for starting up, preheating, ignition, lamp burning, and protection.
2. Features
I Two internal 600 V, 3 Ω max NMOST half bridge powers
I For steady state half bridge currents up to 280 mA
I For ignition half bridge currents up to 1.5 A
I Adjustable preheat and ignition time
I Adjustable preheat current
I Adjustable lamp power
I Lamp temperature stress protection at higher mains voltages
I Capacitive mode protection
I Protection against too low a drive voltage for the power MOSFETs.
3. Applications
I 5 W to 25 W CFLs provided that the maximum junction temperature is not exceeded.
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
UBA2025T
SO16L
Description
plastic small outline package; 16 leads; body width 7.5 mm
Version
SOT162-1
Datasheet pdf - http://www.DataSheet4U.net/
www.DataSheet.co.kr
NXP Semiconductors
5. Block diagram
UBA2025
CFL power IC
VS RHV
6 14
SUPPLY
BANDGAP
REFERENCE
9
CPAV
10 SHUNT
RS CURRENT
MONITOR
Fig 1. Block diagram
IREF CF CI
11 13 15
BOOTSTRAP
OSCILLATOR
LEVEL
SHIFTER
FS
5
HS
DRIVER
T1 16
4
VDC
S1A
TIMING
NON
OVERLAP
CONTROL
12
SGND
LS
DRIVER
T2 3
S1B
1
PGND
2
GLI
7
GLO
UBA2025
8
GND
014aaa936
UBA2025_1
Product data sheet
Rev. 01 — 16 October 2009
© NXP B.V. 2009. All rights reserved.
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Datasheet pdf - http://www.DataSheet4U.net/
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