User guide

NXP Semiconductors
UM10533
TEA1723BT GreenChip SP SMPS demo board
© 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: [e-mail]
Date of release: 21 May 2012
Document identifier: UM10533
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
13. Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety Warning. . . . . . . . . . . . . . . . . . . . . . . . . . 3
3 TEA1723BT features . . . . . . . . . . . . . . . . . . . . . 4
4 Technical specification . . . . . . . . . . . . . . . . . . . 4
5 Performance data. . . . . . . . . . . . . . . . . . . . . . . . 6
5.1 No-load input power consumption . . . . . . . . . . 6
5.2 Output voltage and efficiency . . . . . . . . . . . . . . 6
5.3 Dynamic loading from 0 A to 0.5 A . . . . . . . . . . 7
5.4 Dynamic loading from 0.5 A to 0 A . . . . . . . . . . 8
5.5 Short-circuit of the output . . . . . . . . . . . . . . . . . 9
5.6 Output voltage ripple performance . . . . . . . . . 10
5.7 Conducted EMI measurement results . . . . . . 11
6 Schematic and Bill Of Materials (BOM) . . . . . 14
6.1 TEA1723BT 11 W demo board schematic . . . 14
6.2 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Circuit description. . . . . . . . . . . . . . . . . . . . . . 16
7.1 Rectification section . . . . . . . . . . . . . . . . . . . . 16
7.2 Filtering section . . . . . . . . . . . . . . . . . . . . . . . 16
7.3 GreenChip SP section . . . . . . . . . . . . . . . . . . 16
7.4 Output section . . . . . . . . . . . . . . . . . . . . . . . . 16
7.5 Feedback section . . . . . . . . . . . . . . . . . . . . . . 16
8 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Transformer specifications. . . . . . . . . . . . . . . 18
9.1 Transformer schematic design and winding
construction . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9.2 Electrical characteristics. . . . . . . . . . . . . . . . . 18
9.3 Core, air gap and bobbin . . . . . . . . . . . . . . . . 19
10 Attention points . . . . . . . . . . . . . . . . . . . . . . . . 20
11 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12 Legal information. . . . . . . . . . . . . . . . . . . . . . . 22
12.1 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
12.2 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
12.3 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 22
13 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23