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UBA2021 датащи(PDF) 16 Page - NXP Semiconductors |
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UBA2021 датащи(HTML) 16 Page - NXP Semiconductors |
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16 / 16 page ![]() NXP Semiconductors UBA2021 630 V driver IC for CFL and TL lamps © NXP B.V. 2008. 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: 25 July 2008 Document identifier: UBA2021_4 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 17. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Quick reference data . . . . . . . . . . . . . . . . . . . . . 1 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 Functional description . . . . . . . . . . . . . . . . . . . 3 7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.2 Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.3 Oscillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.4 Operation in the preheat mode . . . . . . . . . . . . . 4 7.5 Ignition state . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.6 Failure to ignite . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.7 Transition to the burn state . . . . . . . . . . . . . . . . 5 7.8 Feed-forward frequency . . . . . . . . . . . . . . . . . . 5 7.9 Capacitive mode protection . . . . . . . . . . . . . . . 6 7.10 IC supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.11 Minimum gate-source voltage of T1 and T2 . . . 6 7.12 Frequency and change in frequency. . . . . . . . . 7 7.13 Ground pins . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.14 Charge coupling . . . . . . . . . . . . . . . . . . . . . . . . 7 8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 7 9 Thermal characteristics. . . . . . . . . . . . . . . . . . . 8 10 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 8 11 Design information . . . . . . . . . . . . . . . . . . . . . 10 11.1 Design equations . . . . . . . . . . . . . . . . . . . . . . 10 12 Application information. . . . . . . . . . . . . . . . . . 11 13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 12 14 Revision history . . . . . . . . . . . . . . . . . . . . . . . . 14 15 Legal information. . . . . . . . . . . . . . . . . . . . . . . 15 15.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 15 15.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 15.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 15.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 16 Contact information. . . . . . . . . . . . . . . . . . . . . 15 17 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 |
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