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TDF8599TH датащи(PDF) 52 Page - NXP Semiconductors |
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TDF8599TH датащи(HTML) 52 Page - NXP Semiconductors |
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52 / 52 page ![]() NXP Semiconductors TDF8599 Class-D power amplifier with load diagnostics © 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: 13 November 2008 Document identifier: TDF8599_1 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. 24. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 Functional description . . . . . . . . . . . . . . . . . . . 6 8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.2 Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . 7 8.3 Pulse-width modulation frequency . . . . . . . . . . 8 8.3.1 Master and slave mode selection . . . . . . . . . . . 8 8.3.2 Spread spectrum mode (Master mode) . . . . . . 9 8.3.3 Frequency hopping (Master mode). . . . . . . . . 10 8.3.4 Phase lock operation (Slave mode) . . . . . . . . 10 8.4 Operation mode selection. . . . . . . . . . . . . . . . 11 8.4.1 Modulation mode . . . . . . . . . . . . . . . . . . . . . . 12 8.4.2 Phase staggering (Slave mode) . . . . . . . . . . . 13 8.4.3 Parallel mode . . . . . . . . . . . . . . . . . . . . . . . . . 14 8.5 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.5.1 Thermal foldback . . . . . . . . . . . . . . . . . . . . . . 15 8.5.2 Overtemperature protection . . . . . . . . . . . . . . 15 8.5.3 Overcurrent protection . . . . . . . . . . . . . . . . . . 15 8.5.4 Window protection . . . . . . . . . . . . . . . . . . . . . 16 8.5.5 DC Protection . . . . . . . . . . . . . . . . . . . . . . . . . 16 8.5.6 Supply voltages . . . . . . . . . . . . . . . . . . . . . . . 17 8.5.7 Overview of protection circuits and amplifier states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.6 Diagnostic output . . . . . . . . . . . . . . . . . . . . . . 18 8.6.1 Diagnostic table . . . . . . . . . . . . . . . . . . . . . . . 18 8.6.2 Load identification (I2C-bus mode only) . . . . . 19 8.6.2.1 DC load detection . . . . . . . . . . . . . . . . . . . . . . 19 8.6.2.2 Recommended start-up sequence with DC load detection enabled . . . . . . . . . . . . . . . . . . 20 8.6.2.3 AC load detection . . . . . . . . . . . . . . . . . . . . . . 21 8.6.2.4 CLIP detection . . . . . . . . . . . . . . . . . . . . . . . . 21 8.6.3 Start-up and shutdown sequence . . . . . . . . . . 22 9I2C-bus specification . . . . . . . . . . . . . . . . . . . . 23 9.1 Instruction bytes . . . . . . . . . . . . . . . . . . . . . . . 25 9.2 Data bytes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 10 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 27 11 Thermal characteristics. . . . . . . . . . . . . . . . . . 27 12 Static characteristics. . . . . . . . . . . . . . . . . . . . 28 12.1 Switching characteristics . . . . . . . . . . . . . . . . 31 13 Dynamic characteristics . . . . . . . . . . . . . . . . . 32 14 Application information . . . . . . . . . . . . . . . . . 33 14.1 Output power estimation (Stereo mode) . . . . 33 14.2 Output power estimation (Parallel mode) . . . . 35 14.3 Output current limiting . . . . . . . . . . . . . . . . . . 35 14.4 Speaker configuration and impedance. . . . . . 36 14.5 Heat sink requirements . . . . . . . . . . . . . . . . . 36 14.6 Curves measured in reference design . . . . . . 37 14.7 Typical application schematics . . . . . . . . . . . . 40 15 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 44 16 Handling information . . . . . . . . . . . . . . . . . . . 46 17 Soldering of SMD packages . . . . . . . . . . . . . . 46 17.1 Introduction to soldering. . . . . . . . . . . . . . . . . 46 17.2 Wave and reflow soldering . . . . . . . . . . . . . . . 46 17.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 46 17.4 Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 47 18 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 48 19 Revision history . . . . . . . . . . . . . . . . . . . . . . . 49 20 Legal information . . . . . . . . . . . . . . . . . . . . . . 50 20.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 50 20.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 20.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 50 20.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 50 21 Contact information . . . . . . . . . . . . . . . . . . . . 50 22 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 23 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 24 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 |
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