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參數(shù)資料
| 型號： | TPA6030A4 |
| 英文描述： | 3-W Stereo Audio Power Amplifier with Advanced DC Volume Control |
| 中文描述： | 3 - W立體聲音頻功率放大器與先進(jìn)的直流音量控制 |
| 文件頁數(shù)： | 31/33頁 |
| 文件大?。?/td> | 469K |
| 代理商： | TPA6030A4 |
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TPA6011A4
SLOS392
–
FEBRUARY 2002
31
www.ti.com
APPLICATION INFORMATION
crest factor and thermal considerations (continued)
The maximum ambient temperature depends on the heat-sinking ability of the PCB system. The derating factor
for the PWP package is shown in the
dissipation rating table
. Use equation 12 to convert this to
Θ
JA.
1
Derating Factor
0.022
Θ
JA
1
45
°
C W
(12)
To calculate maximum ambient temperatures, first consider that the numbers from the dissipation graphs are
per channel, so the dissipated power needs to be doubled for two channel operation. Given
Θ
JA
, the maximum
allowable junction temperature, and the total internal dissipation, the maximum ambient temperature can be
calculated using equation 13. The maximum recommended junction temperature for the TPA6011A4 is 150
°
C.
The internal dissipation figures are taken from the Power Dissipation vs Output Power graphs.
T
A
Max
T
J
Max
150
Θ
JA
P
D
45(0.6
2)
96
°
C (15-dB crest factor)
(13)
NOTE:
Internal dissipation of 0.6 W is estimated for a 2-W system with 15-dB crest factor per channel.
Tables 6 and 7 show that some applications require no airflow to keep junction temperatures in the specified
range. The TPA6011A4 is designed with thermal protection that turns the device off when the junction
temperature surpasses 150
°
C to prevent damage to the IC. Table 6 and 7 were calculated for maximum listening
volume without distortion. When the output level is reduced the numbers in the table change significantly. Also,
using 8-
speakers increases the thermal performance by increasing amplifier efficiency.
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| TPA6030A4PWP | Slide |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA6030A4_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-2 STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL |
| TPA6030A4EVM | 功能描述:音頻 IC 開發(fā)工具 TPA6030A4 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA6030A4PWP | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6030A4PWPG4 | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6030A4PWPR | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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