Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

UBA2211BT Datasheet(PDF) 7 Page - NXP Semiconductors

Part # UBA2211BT
Description  Half-bridge power IC family for CFL lamps
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

UBA2211BT Datasheet(HTML) 7 Page - NXP Semiconductors

Back Button UBA2211BT Datasheet HTML 3Page - NXP Semiconductors UBA2211BT Datasheet HTML 4Page - NXP Semiconductors UBA2211BT Datasheet HTML 5Page - NXP Semiconductors UBA2211BT Datasheet HTML 6Page - NXP Semiconductors UBA2211BT Datasheet HTML 7Page - NXP Semiconductors UBA2211BT Datasheet HTML 8Page - NXP Semiconductors UBA2211BT Datasheet HTML 9Page - NXP Semiconductors UBA2211BT Datasheet HTML 10Page - NXP Semiconductors UBA2211BT Datasheet HTML 11Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 20 page
background image
UBA2211
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 26 August 2011
7 of 20
NXP Semiconductors
UBA2211
Half-bridge power IC family for CFL lamps
(3)
If during the preheat time, capacitive mode is sensed and the internal VSW HIGH node is
discharged. The frequency sweep restarts at fmax which is equal to 2.5  fmin.
7.6 Ignition state
The ignition state is entered after the preheat state has finished. The current ISW charges
the capacitor on pin SW (CSW) up to 0.6  VH(RC) which corresponds to the frequency
fosc(nom).
During this frequency sweep, the resonance frequency is reached resulting in the ignition
of the lamp (see Figure 4). The combination of lamp inductor (Llamp) and lamp capacitor
(Clamp) set the resonance frequency. The ignition state ends when the voltage on pin SW
(VSW) reaches 0.6  VH(RC).
7.7 Steady state
In the steady state, the RMS current control is active. This control sets the frequency so
that the RMS voltage across the sense resistor (RSENSE) is equal to VO(ref)RMS. This
ensures the current through the power switches and through the lamp is constant. This
results in constant IC dissipation and temperature at a fixed ambient temperature.
During one oscillator clock cycle, the voltage on pin SENSE (VSENSE) is squared and
converted into a positive current. This discharge current is added to the capacitor CSW.
Fig 5.
Vlamp, fosc(int), VSW and VSW(ph) plotted against time
C
sw
t
ph
1.5 s
100 nF
------------------------------------
=
preheat time
ignition
2.5 × fosc(nom)
001aal992
RMS control
fosc(nom)
fosc(int)
VSW HIGH
0.6 × VH(RC)
0
VSW(ph)
time (s)
VSW
Vlamp
VSW


Similar Part No. - UBA2211BT

ManufacturerPart #DatasheetDescription
logo
NXP Semiconductors
UBA2211BTN1 NXP-UBA2211BTN1 Datasheet
175Kb / 19P
   Half-bridge power IC family for CFL lamps
Rev. 2-3 January 2011
More results

Similar Description - UBA2211BT

ManufacturerPart #DatasheetDescription
logo
NXP Semiconductors
UBA2211 NXP-UBA2211 Datasheet
175Kb / 19P
   Half-bridge power IC family for CFL lamps
Rev. 2-3 January 2011
UBA2024 PHILIPS-UBA2024_10 Datasheet
448Kb / 17P
   Half-bridge power IC for CFL lamps
Rev. 6.2-1 November 2010
UBA2024 NXP-UBA2024_09 Datasheet
90Kb / 14P
   Half-bridge power IC for CFL lamps
Rev. 04-17 September 2009
logo
Shenzhen Winsemi Microe...
WS21351 WINSEMI-WS21351 Datasheet
363Kb / 7P
   Half-bridge power IC for CFL lamps
logo
NXP Semiconductors
UBA2024 PHILIPS-UBA2024 Datasheet
78Kb / 11P
   Half-bridge power IC for CFL lamps
2004 Feb 03
UBA2024 NXP-UBA2024 Datasheet
69Kb / 12P
   Half-bridge power IC for CFL lamps
Rev. 03-16 October 2008
UBA2025 NXP-UBA2025 Datasheet
352Kb / 17P
   CFL power IC
Rev. 01-16 October 2009
UBA2021 PHILIPS-UBA2021 Datasheet
102Kb / 20P
   630 V driver IC for CFL and TL lamps
2001 Jan 30
UBA2021 PHILIPS-UBA2021_08 Datasheet
107Kb / 16P
   630 V driver IC for CFL and TL lamps
Rev. 04-25 July 2008
UBA2021 NXP-UBA2021 Datasheet
107Kb / 16P
   630 V driver IC for CFL and TL lamps
Rev. 04-25 July 2008
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com