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SA56004GD Datasheet(PDF) 36 Page - NXP Semiconductors |
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SA56004GD Datasheet(HTML) 36 Page - NXP Semiconductors |
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36 / 36 page  NXP Semiconductors SA56004X Digital temperature sensor with overtemperature alarms © 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: 22 May 2008 Document identifier: SA56004X_5 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 20. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 4.1 Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Functional description . . . . . . . . . . . . . . . . . . . 5 7.1 Serial bus interface . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Slave address . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.3 Register overview . . . . . . . . . . . . . . . . . . . . . . . 5 7.4 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.5 Starting conversion . . . . . . . . . . . . . . . . . . . . . . 7 7.6 Low power software standby mode . . . . . . . . . 7 7.7 Temperature data format . . . . . . . . . . . . . . . . . 7 7.8 SA56004X SMBus registers . . . . . . . . . . . . . . . 8 7.8.1 Command register . . . . . . . . . . . . . . . . . . . . . . 8 7.8.2 Local and remote temperature registers (LTHB, LTLB, RTHB, RTLB) . . . . . . . . . . . . . . . 8 7.8.3 Configuration register (CON) . . . . . . . . . . . . . . 8 7.8.4 Status register (SR) . . . . . . . . . . . . . . . . . . . . . 9 7.8.5 Conversion rate register (CR) . . . . . . . . . . . . . 10 7.8.6 Temperature limit registers . . . . . . . . . . . . . . . 10 7.8.7 Programmable offset register (remote only) . . 11 7.8.8 ALERT mode register (AM) . . . . . . . . . . . . . . 11 7.8.9 Other registers . . . . . . . . . . . . . . . . . . . . . . . . 11 7.8.10 One-shot register . . . . . . . . . . . . . . . . . . . . . . 11 7.9 Interruption logic and functional description . . 12 7.9.1 ALERT output . . . . . . . . . . . . . . . . . . . . . . . . . 12 7.9.1.1 ALERT output in comparator mode . . . . . . . . 12 7.9.1.2 ALERT output in interrupt mode . . . . . . . . . . . 12 7.9.1.3 ALERT output in SMBus ALERT mode . . . . . 13 7.9.2 T_CRIT output . . . . . . . . . . . . . . . . . . . . . . . . 15 7.9.3 Fault Queue . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7.9.4 Remote diode selection . . . . . . . . . . . . . . . . . 17 7.9.5 Diode fault detection . . . . . . . . . . . . . . . . . . . . 17 7.10 SMBus interface . . . . . . . . . . . . . . . . . . . . . . . 18 7.10.1 Serial interface reset. . . . . . . . . . . . . . . . . . . . 20 8 Simplified system diagram . . . . . . . . . . . . . . . 20 9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 21 10 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 22 11 Performance curves . . . . . . . . . . . . . . . . . . . . 25 12 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 27 13 Packing information. . . . . . . . . . . . . . . . . . . . . 30 14 Soldering of SMD packages . . . . . . . . . . . . . . 30 14.1 Introduction to soldering. . . . . . . . . . . . . . . . . 30 14.2 Wave and reflow soldering . . . . . . . . . . . . . . . 30 14.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 31 14.4 Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 31 15 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 15.1 Printed-circuit board layout considerations . . 32 16 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 33 17 Revision history . . . . . . . . . . . . . . . . . . . . . . . 34 18 Legal information . . . . . . . . . . . . . . . . . . . . . . 35 18.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 35 18.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 18.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 35 18.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 35 19 Contact information . . . . . . . . . . . . . . . . . . . . 35 20 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 |
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