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参数资料
| 型号： | TDA7293HS |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 100 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封装： | MULTIWATT-15 |
| 文件页数： | 4/21页 |
| 文件大小： | 397K |
| 代理商： | TDA7293HS |
Applications information
TDA7293
12/21
Doc ID 6744 Rev 8
4.4
Modular application (ref. figure 12)
The modular application is where several devices operate in parallel.
The modular application allows very high power be delivered to very low-impedance loads.
In this type of application one device acts as a master and the others as slaves.
The slave power stages are driven by the master device and work in parallel together while
the input and the gain stages of the slave devices are disabled. The figure below shows the
connections required to configure two devices to work together.
The master chip connections are the same as the normal single ones.
The outputs can be connected together without the need of any ballast resistor.
The slave SGND pin must be tied to the negative supply.
The slave STANDBY and MUTE pins must be connected to the master STANDBY and
MUTE pins.
The bootstrap lines must be connected together and the bootstrap capacitor must be
increased: for N devices the bootstrap capacitor must be 22 F times N.
The slave IN pin must be connected to the negative supply.
4.5
Bootstrap capacitor
For compatibility purpose with the previous devices of the family, the bootstrap capacitor can
be connected either between the bootstrap pin (6) and the output pin (14) or between the
bootstrap pin (6) and the bootstrap loader pin (12).
When the bootstrap is connected between pins 6 and 14 the maximum supply voltage in the
presence of an output signal is limited to 100 V, due the bootstrap capacitor overvoltage.
When the bootstrap is connected between pins 6 and 12 the maximum supply voltage
extends to the full voltage that the technology can stand, in this case 120 V.
This is accomplished by the clamp introduced at the bootstrap loader pin (12). This pin
follows the output voltage up to 100 V and remains clamped at 100 V for higher output
voltages.
This feature lets the output voltage swing up to a gate-source voltage from the positive
supply (VS -3 to 6 V).
相关PDF资料 |
PDF描述 |
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| TDA7294V | 100 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7294HS | 100 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7295S | 80 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7295 | 80 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7296AV | 30 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7293V | 功能描述:音频放大器 100W 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 |
| TDA7293V | 制造商:STMicroelectronics 功能描述:Audio Power Amplifier IC |
| TDA7294 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7294_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:100V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY |
| TDA7294HS | 功能描述:音频放大器 100V, 100W DMOS AMP Up to 40V Mute STDBY 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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