參數(shù)資料
型號: TMS320C6727B_07
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: Floating-Point Digital Signal Processors
中文描述: 浮點數(shù)字信號處理器
文件頁數(shù): 108/116頁
文件大小: 999K
代理商: TMS320C6727B_07
www.ti.com
7
Mechanical Data
7.1 Package Thermal Resistance Characteristics
TMS320C6727B, TMS320C6726B, TMS320C6722B, TMS320C6720
Floating-Point Digital Signal Processors
SPRS370C–SEPTEMBER 2006–REVISED OCTOBER 2007
Table 7-1
and
Table 7-2
provide the thermal characteristics for the recommended package types used on
the TMS320C672x DSP.
Table 7-1. Thermal Characteristics for GDH/ZDH Package
AIR FLOW
(m/s)
NO.
°
C/W
Two-Signal, Two-Plane, 101.5 x 114.5 x 1.6 mm , 2-oz Cu. EIA/JESD51-9 PCB
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Board
Thermal Resistance Junction to Top of Case
Thermal Metric Junction to Board
Thermal Metric Junction to Top of Case
1
2
3
4
5
R
θ
JA
R
θ
JB
R
θ
JC
Ψ
JB
Ψ
JT
25
14.5
10
14
0.39
0
0
0
0
0
Table 7-2. Thermal Characteristics for RFP Package
THERMAL PAD CONFIGURATION
AIR
FLOW
(m/s)
NO.
°
C/W
VIA
TOP
BOTTOM
ARRAY
Two-Signal, Two-Plane, 76.2 x 76.2 mm PCB
(1)(2)(3)
Thermal Resistance Junction to Ambient
1
R
θ
JA
10.6 x 10.6 mm
7.5 x 7.5 mm
10.6 x 10.6 mm
10.6 x 10.6 mm
7.5 x 7.5 mm
10.6 x 10.6 mm
6 x 6
5 x 5
6 x 6
20
22
0.39
0
0
0
2
Ψ
JP
Thermal Metric Junction to Power Pad
Double-Sided 76.2 x 76.2 mm PCB
(1) (2)(4)
3
R
θ
JA
Thermal Resistance Junction to Ambient
10.6 x 10.6 mm
10.6 x 10.6 mm
10.6 x 10.6 mm
10.6 x 10.6 mm
10.6 x 10.6 mm
10.6 x 10.6 mm
38.1 x 38.1 mm
57.2 x 57 mm
76.2 x 76.2 mm
10.6 x 10.6 mm
6 x 6
6 x 6
6 x 6
6 x 6
6 x 6
49
27
22
20
0.39
0
0
0
0
0
4
Ψ
JP
Thermal Metric Junction to Power Pad
PCB modeled with 2 oz/ft
2
Top and Bottom Cu.
Package thermal pad must be properly soldered to top layer PCB thermal pad for both thermal and electrical performance. Thermal pad
is V
.
Top layer thermal pad is connected through via array to both bottom layer thermal pad and internal V
SS
plane.
Top layer thermal pad is connected through via array to bottom layer thermal pad.
(1)
(2)
(3)
(4)
Mechanical Data
108
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