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SPRS717 –OCTOBER 2011
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7 Mechanical Packaging and Orderable Information
7.1 Thermal Data for ZCE and ZCZ Packages
Table 7-1 provides thermal characteristics for the packages used on this device.
NOTE
Table 7-1 provides simulation data and may not represent actual use-case values.
Table 7-1. Thermal Resistance Characteristics (PBGA Package) [ZCE and ZCZ]
NAME
DESCRIPTION
AIR
ZCE
ZCZ
FLOW(1)
(°C/W)(2)
(°C/W)(2)
ΘJC
ΘJB
ΘJA
Junction-to-case (1S0P)(3)
Junction-to-board (2S2P)(3)
Junction-to-free air (2S2P)(3)
N/A
N/A
0.0
1.0
2.0
3.0
0.0
1.0
2.0
3.0
0.0
1.0
2.0
3.0
10.3
11.6
24.7
20.5
19.7
19.2
0.4
10.2
12.1
24.2
20.1
19.3
18.8
0.3
ΨJT
Junction-to-package top (2S2P)(3)
Junction-to-board (2S2P)(3)
0.6
0.6
0.7
0.7
0.9
0.8
ΨJB
11.9
11.7
11.7
11.6
12.7
12.3
12.3
12.2
(1) m/s = meters per second.
(2) °C/W = degress celsius per watt.
(3) The board types are defined by JEDEC (reference JEDEC standard JESD51-9, Test Board for Area
Array Surface Mount Package Thermal Measurements).
7.2 Via Channel
The ZCE package has been specially engineered with Via Channel™ technology. This allows larger than
normal PCB via and trace sizes and reduced PCB signal layers to be used in a PCB design with the
0.65-mm pitch package, and substantially reduces PCB costs. It allows PCB routing in only two signal
layers (four layers total) due to the increased layer efficiency of the Via Channel™ BGA technology.
7.3 Packaging Information
The following packaging information and addendum reflect the most current data available for the
designated device(s). This data is subject to change without notice and without revision of this document.
The figures below show the package drawings for the ZCE and ZCZ package options.
158
Mechanical Packaging and Orderable Information
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