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参数资料
| 型号： | LV49152V |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO44 |
| 封装： | 0.275 INCH, SSOP-44 |
| 文件页数： | 7/24页 |
| 文件大小： | 520K |
| 代理商： | LV49152V |
LV49152V
Power supply lowering protection circuit
Since the instable operation in the low voltage is prevented by using this circuit, after the voltage of the PVD pin is
monitored and the voltage below the Attack voltage (PVD = 8V typ.), AMP is turned off.
Also, to prevent the instable operation when the voltage of the PVD pin is decreased by any cause during operations, the
Attack voltage (PVD = 7V typ.) is set.
The voltage of Attack and Recover has hysteresis (About 1V) to prevent ON/OFF continuous action of the power supply
lowering protection circuit.
Function image
Also, this IC is designed to turn off AMP in the same sequence that the MUTE is on as a pop noise measures when the
plug of products are put off.
Over current protection circuit
The over current protection circuit is a protection circuit * to protect the output DMOS from the over current and
corresponds to any mode of the power supply, GND and a load short.
The protection operation is performed when the current reaches the detection current value set out in IC and the output
DMOS is compulsorily turned off for about 20
μsec.
After compulsorily tuning off the output DMOS, when the Amplifier is automatically reset in usual operation and the over
current flows continuously, the protection operation is performed again.
Function image
* The over current protection circuit is a function to avoid the abnormal state like the output short-circuit temporarily.
Unfortunately, we cannot guarantee that IC is not destroyed.
No.A1408-15/24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LV49152V_10 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Class-D Audio Power Amplifier BTL 15W ?? 2ch |
| LV49152V-MPB-E | 功能描述:音频放大器 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 |
| LV49152V-TLM-E | 功能描述:音频放大器 AUDIO POWER 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 |
| LV49157V | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Bi-CMOS LSI Class-D Audio Power Amplifier with built-in Headphone Ampifier BTL 15W × 2ch |
| LV49157V-MPB-H | 功能描述:音频放大器 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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