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AM1808AZCED3 数据表(PDF) 259 Page - Texas Instruments |
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AM1808AZCED3 数据表(HTML) 259 Page - Texas Instruments |
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259 / 264 page  AM1808 www.ti.com SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010 8.2 Thermal Data for ZCE Package The following table(s) show the thermal resistance characteristics for the PBGA–ZCE mechanical package. Table 8-1. Thermal Resistance Characteristics (PBGA Package) [ZCE] NO. °C/W(1) AIR FLOW (m/s)(2) 1 R ΘJC Junction-to-case 7.6 N/A 2 R ΘJB Junction-to-board 11.3 N /A 3 R ΘJA Junction-to-free air 23.9 0.00 4 21.2 0.50 5 20.3 1.00 R ΘJMA Junction-to-moving air 6 19.5 2.00 7 18.6 4.00 8 0.2 0.00 9 0.3 0.50 10 PsiJT Junction-to-package top 0.3 1.00 11 0.4 2.00 12 0.5 4.00 13 11.2 0.00 14 11.1 0.50 15 PsiJB Junction-to-board 11.1 1.00 16 11.0 2.00 17 10.9 4.00 (1) These measurements were conducted in a JEDEC defined 2S2P system and will change based on environment as well as application. For more information, see these EIA/JEDEC standards – EIA/JESD51-2, Integrated Circuits Thermal Test Method Environment Conditions - Natural Convection (Still Air) and JESD51-7, High Effective Thermal Conductivity Test Board for Leaded Surface Mount Packages. Power dissipation of 500 mW and ambient temp of 70C assumed. PCB with 2oz (70um) top and bottom copper thickness and 1.5oz (50um) inner copper thickness (2) m/s = meters per second Copyright © 2010, Texas Instruments Incorporated Mechanical Packaging and Orderable Information 259 Submit Documentation Feedback Product Folder Link(s): AM1808 |
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