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参数资料
| 型号： | TAS5414ATPHDMQ1G4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 116 W, 4 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| 封装： | GREEN, PLASTIC, HTQFP-64 |
| 文件页数： | 13/54页 |
| 文件大小： | 1386K |
| 代理商： | TAS5414ATPHDMQ1G4 |
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50V
100ms
Max
MaxRampRate
15V/ms
PVDD
50V
29V
26V
23V
22V
14.4V
Hi-Z AllCh’s
I CStop
StandbyMode
2
LoadDumpProtection
29V–50V
OvervoltageProtectionRegion
23V–29V
NormalOperatingRegion
8V–22V
Time
POR
I CStart
2
ReadytoGet
OffHi-ZState
T0189-01
SLOS535C
– MAY 2009 – REVISED APRIL 2011
Figure 15. Voltage Operating Regions With Load Dump Transition Defined
Power Supply
The power for the device is most commonly provided by a car battery that can have a large voltage swing, 8 Vdc
to 18 Vdc. PVDD is a filtered battery voltage, and it is the supply for the output FETS and the low-side FET gate
driver. The high-side FET gate driver is supplied by a charge pump (CP) supply. The charge pump supplies the
gate drive voltage for all four channels. The analog circuitry is powered by AVDD, which is a provided by an
internal linear regulator. A 0.1
μF/10V external bypass capacitor is needed at the A_BYP pin for this supply. It is
recommended that no external components except the bypass capacitor be attached to this pin. The digital
circuitry is powered by DVDD, which is provided by an internal linear regulator. A 0.1
μF/10V external bypass
capacitor is needed at the D_BYP pin. It is recommended that no external components except the bypass
capacitor be attached to this pin.
The TAS5414A and TAS5424A can withstand fortuitous open ground and power conditions. Fortuitous open
ground usually occurs when a speaker wire is shorted to ground, allowing for a second ground path through the
body diode in the output FETs. The uniqueness of the diagnostic capabilities allows the speakers and speaker
wires to be debugged, eliminating the need to remove the amplifier to diagnose the problem.
I
2C Serial Communication Bus
The TAS5414A and TAS5424A communicate with the system processor via the I2C serial communication bus.
The TAS5414A and TAS5424A are I2C slave-only devices. The processor can poll the TAS5414A and the
TAS5424A via I2C to determine the operating status of the device. All fault conditions and detections are
reported via I2C. There are also numerous features and operating conditions that can be set via I2C.
The I2C bus allows control of the following configurations:
Independent gain control of each channel. The gain can be set to 12 dB, 20 dB, 26 dB, and 32 dB.
Select current limit (for 2-
and for 4- loads). This allows optimal design of the filter inductor, and the use of
smaller gauge speaker wires for 4-
applications.
Select AM non-interference switching frequency
20
Copyright
2009–2011, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TAS5414ATPHDQ1 | 功能描述:音频放大器 4Ch Auto Dig 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 |
| TAS5414ATPHDQ1G4 | 功能描述:音频放大器 4 Channel Auto 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 |
| TAS5414ATPHDRMQ1 | 功能描述:音频放大器 4Ch Auto Dig 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 |
| TAS5414ATPHDRMQ1G4 | 功能描述:音频放大器 4 Channel Auto 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 |
| TAS5414ATPHDRQ1 | 功能描述:音频放大器 4Ch Auto Dig 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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