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参数资料
| 型号： | TDA2005S |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 12 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
| 封装： | MULTIWATT-11 |
| 文件页数： | 15/25页 |
| 文件大小： | 395K |
| 代理商： | TDA2005S |
Application information
TDA2005
Doc ID 1451 Rev 4
4.1.7
Thermal shut-down
The presence of a thermal limiting circuit offers the following advantages:
1.
an overload on the output (even if it is permanent), or an excessive ambient
temperature can be easily withstood.
2.
the heatsink can have a smaller factor of safety compared with that of a conventional
circuit. There is no device damage in the case of excessive junction temperature : all
that happens is that Po (and therefore Ptot) and Id are reduced.
The maximum allowable power dissipation depends upon the size of the external heatsink
(i.e. its thermal resistance); Figure 37 shows the power dissipation as a function of ambient
temperature for different thermal resistance.
4.1.8
Loudspeaker protection
The circuit offers loudspeaker protection during short circuit for one wire to ground.
Figure 37. Maximum allowable power dissipa-
tion vs. ambient temperature
Figure 38. Output power and drain current vs.
case temperature (RL = 4 Ω)
Figure 39.
Output power and drain current vs.
case temperature (RL = 3.2 Ω)
Ptot
(W)
32
28
24
20
-50
50
100
Tamb (C)
0
16
12
8
4
0
R
th
= 8C/W
R
th =
4C/W
R
th =
2C/W
INFINITE
HEA
TSINK
Po
(W)
Tcase (C)
16
12
8
4
1.2
0.9
0.6
0.3
0
40
80
120
160
Id
(A)
Id
Po
VS = 14.4V
RL = 4
Ω
f = 1 kHz
Po
(W)
Tcase (C)
8
6
4
2
1.2
0.9
0.6
0.3
0
40
80
120
160
Id
(A)
Id
Po
VS = 13.2V
RL = 3.2
Ω
f = 1 kHz
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| TDA2006H | 12 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA2006 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:12W AUDIO AMPLIFIER |
| TDA2006H | 功能描述:音频放大器 12W AUDIO AMPLIFIER RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA2006V | 功能描述:音频放大器 12W AUDIO AMPLIFIER RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA2007 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:6 + 6W STEREO AMPLIFIER |
| TDA2007A | 功能描述:音频放大器 6+6W Stereo Amp RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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