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参数资料
| 型号： | TDA7266D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封装： | POWERSO-20 |
| 文件页数： | 11/13页 |
| 文件大小： | 194K |
| 代理商： | TDA7266D |
7/13
TDA7266D
d Dissipating Copper Area:
Dissipated Power:
The max dissipated power happens for a THD near 1% and is given by the formula:
This gives for: Vcc = 9.5V, Rl = 8
,Iq = 50mA a dissipated power of Pd = 5W.
Thermal Protection:
The thermal protection threshold is placed at a junction temperature of 150°C.
Package Thermal Characteristics:
The thermal resistance Junction to Ambient obtainable with a GND copper Area of 3x3 cm and with 16 via
holes (see picture) is about 15°C/W. This means that with the above mentioned max dissipated Power (Pd=5W)
we can expect a 75°C, this gives a safety margin before the thermal protection intervention in the consumer
environments where a 50°C ambient is specified as maximum
The Thermal constraints determine the max supply voltage that can be used for the different Load Impedances,
this in order to avoid the thermal Protection Intervention.
The max. dissipated power must be not in excess of 5W , this at turns gives the following operating supply volt-
ages:
e Filter Capacitors Positioning:
The two Ceramic capacitors C2/C7 (100nF) must be placed as close as possible
respectively to the two Vcc pins ( 6 - 15) in order to avoid the possibiltiy of oscillations arising on the
output Audio signals.
Package Informations:
You can find a complete description for the PowerSO package into the APPLICATION NOTE AN668 available
on web.
Here we want to focalize the attention only on the the Dissipating elements and ground layer.
Load (Ohm)
Supply Voltage (V)
4
6.5
6
8.5
8
9.5
16
14
P
dm ax W
()
2
V
CC
2
π
2
Rl
2
------
--------------
I
qVCC
+
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7266D13TR | 功能描述:音频放大器 7+7W DUAL BRIDGE 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 |
| TDA7266G-J15-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266G-J15-B-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266G-J15-D-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266-J15-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
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