NXP Semiconductors SSL2108X, Руководство пользователя, Страница: 27 / 27

NXP Semiconductors
UM10468
SSL2108X buck evaluation board
© NXP B.V. 2011. 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: 30 August 2011
Document identifier: UM10468
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
15. Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety warning . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4 Performance data. . . . . . . . . . . . . . . . . . . . . . . . 5
4.1 Output load . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2 Efficiency Curve . . . . . . . . . . . . . . . . . . . . . . . . 5
4.3 Input voltage dependency. . . . . . . . . . . . . . . . . 6
4.4 ElectroMagnetic Compatibility data . . . . . . . . . 6
4.5 SSL21081 mains harmonics. . . . . . . . . . . . . . . 9
5 Connection data. . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 The board connections . . . . . . . . . . . . . . . . . . 11
6 Functional description . . . . . . . . . . . . . . . . . . 12
7 Board optimization . . . . . . . . . . . . . . . . . . . . . 13
7.1 Active bypass . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Negative Temperature Coefficient (NTC)
function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Bill of materials (BOM) . . . . . . . . . . . . . . . . . . 17
10.1 BOM for SSL21081 evaluation board . . . . . . . 17
10.2 BOM for SSL21082 evaluation board . . . . . . . 18
10.3 BOM for SSL21083 evaluation board . . . . . . . 19
10.4 BOM for SSL21084 evaluation board . . . . . . . 21
11 Printed-Circuit Board (PCB) data . . . . . . . . . . 23
11.1 Evaluation board photographs . . . . . . . . . . . . 23
12 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 25
13 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
14 Legal information. . . . . . . . . . . . . . . . . . . . . . . 26
14.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
14.2 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
14.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 26
15 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27