參數資料
型號: TAS5110IDAP
廠商: Texas Instruments, Inc.
元件分類: 運動控制電子
英文描述: TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE
中文描述: 真正的數字音頻放大器TAS5110的PWM功率輸出級
文件頁數: 14/20頁
文件大?。?/td> 264K
代理商: TAS5110IDAP
TAS5110
SLES028A
MAY 2002
REVISED SEPTEMBER 2002
14
www.ti.com
THERMAL INFORMATION
The thermally enhanced DAP package is based on the 32-pin HTSSOP, but includes a thermal pad (see
Figure 6) to provide an effective thermal contact between the IC and the PCB.
Traditionally, surface mount and power have been mutually exclusive terms. A variety of scaled-down TO-220
type packages have leads formed as gull wings to make them applicable for surface-mount applications. These
packages, however, have two shortcomings: they do not address the low profile requirements (<2 mm) of many
of today
s advanced systems, and they do not offer a terminal-count high enough to accommodate increasing
integration. On the other hand, traditional low-power surface-mount packages require power-dissipation
derating that severely limits the usable range of many high-performance analog circuits.
The PowerPAD package (thermally enhanced HTSSOP) combines fine-pitch surface-mount technology with
thermal performance comparable to much larger power packages.
The PowerPAD package is designed to optimize the heat transfer to the PCB. Because of the very small size
and limited mass of a HTSSOP package, thermal enhancement is achieved by improving the thermal
conduction paths that remove heat from the component. The thermal pad is formed using a patented lead-frame
design and manufacturing technique to provide a direct connection to the heat-generating IC. When this pad
is soldered or otherwise thermally coupled to an external heat dissipater, high power dissipation in the ultrathin,
fine-pitch, surface-mount package can be reliably achieved. See the dissipation derating table.
DIE
Thermal
Pad
End View DAP
Bottom View DAP
DIE
End View DAD
Thermal
Pad
Top View DAD
DAP Package
DAD Package
Figure 6. Views of Thermally Enhanced DAP Package
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