NXP Semiconductors
UM10525
120 V 20 W CFL demo board using the UBA2212
© NXP B.V. 2012.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 19 April 2012
Document identifier: UM10525
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
11. Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Safety Warning. . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Schematic and functional description . . . . . . . 6
4.1
Functional description. . . . . . . . . . . . . . . . . . . . 6
4.2
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5
Measurement results . . . . . . . . . . . . . . . . . . . . . 8
5.1
Boost lamp with high lamp voltage . . . . . . . . . 11
5.2
RMS control in boost and steady states . . . . . 12
5.3
Overtemperature protection . . . . . . . . . . . . . . 12
5.4
Saturation Current protection . . . . . . . . . . . . . 13
5.5
Capacitive mode protection . . . . . . . . . . . . . . 14
6
Schematic and Bill Of Materials (BOM) . . . . . 16
7
PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8
Alternative CFL examples . . . . . . . . . . . . . . . . 17
9
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10
Legal information. . . . . . . . . . . . . . . . . . . . . . . 20
10.1
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.2
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10.3
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
11
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
