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參數(shù)資料
| 型號(hào)： | TDA7375AH |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 43 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封裝： | MULTIWATT V-15 |
| 文件頁(yè)數(shù)： | 2/14頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | TDA7375AH |
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rect operation for the device itself and for the
loudspeaker.
This particular kind of protection acts in such a
way to avoid the device is turned on (by ST-BY)
when a resistive path (less than 16 ohms) is pre-
sent between the output and GND. As the in-
volved circuitry is normally disabled when a cur-
rent higher than 5mA is flowing into the ST-BY
pin, it is important, in order not to disable it, to
have the external current source driving the ST-
BY pin limited to 5mA.
This extrafunction becomes particularly attractive
when, in the single ended configuration, one ca-
pacitor is shared between two outputs (see fig.
21).
Supposing that the output capacitor Cout for any
reason is shorted, the loudspeaker will not be
damaged being this soft short circuit condition re-
vealed.
Diagnostic Facilities
The TDA7375 is equipped with a diagnostic cir-
cuitry able to detect the following events:
Clipping in the output signal
Thermal shutdown
Output fault:
– short to GND
– short to VS
– soft short at turn on
The information is available across an open
collector output (pin 10) through a current sink-
ing when the event is detected
A current sinking at pin 10 is provided when a cer-
tain distortion level is reached at each output. This
function allows gain compression facility when-
ever the amplifier is overdriven.
Thermal Shutdown
In this case the output 10 will signal the proximity
of the junction temperature to the shutdown
threshold. Typically current sinking at pin 10 will
start ~10
°C before the shutdown threshold is
reached.
HANDLING OF THE DIAGNOSTIC INFORMA-
Figure 21.
Figure 22: Clipping Detection Waveforms
Figure 23: Output Fault Waveforms (see fig. 24)
TDA7375A
10/14
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PDF描述 |
|---|---|
| TDA7375AV | 43 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7375H | 12 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7375V | 40 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| TDA7376PDTR | 37 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7376PD | 37 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7375AV | 功能描述:音頻放大器 2X37W Pwr Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7375AV_12 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 37 W dual/quad power amplifier for car radio |
| TDA7375H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 x 35W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7375V | 功能描述:音頻放大器 2X35W Pwr Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7376B | 功能描述:音頻放大器 2X35W Pwr Amplifier RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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