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AM1808AZCED3 数据表(PDF) 260 Page - Texas Instruments |
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AM1808AZCED3 数据表(HTML) 260 Page - Texas Instruments |
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260 / 264 page  AM1808 SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010 www.ti.com 8.3 Thermal Data for ZWT Package The following table(s) show the thermal resistance characteristics for the PBGA–ZWT mechanical package. Table 8-2. Thermal Resistance Characteristics (PBGA Package) [ZWT] NO. °C/W(1) AIR FLOW (m/s)(2) 1 R ΘJC Junction-to-case 7.3 N/A 2 R ΘJB Junction-to-board 12.4 N /A 3 R ΘJA Junction-to-free air 23.7 0.00 4 21.0 0.50 5 20.1 1.00 R ΘJMA Junction-to-moving air 6 19.3 2.00 7 18.4 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 12.3 0.00 14 12.2 0.50 15 PsiJB Junction-to-board 12.1 1.00 16 12.0 2.00 17 11.9 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 1W 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 260 Mechanical Packaging and Orderable Information Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM1808 |
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