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參數(shù)資料
| 型號(hào)： | TDA7375AH |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 音頻放大器 |
| 英文描述： | 2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| 中文描述： | 2 × 37W雙/四路功率放大器汽車收音機(jī) |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 192K |
| 代理商： | TDA7375AH |
rect operation for the device itself and for the
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 C
out
for any
reason is shorted, the loudspeaker will not be
damaged being this soft short circuit conditionre-
vealed.
DiagnosticFacilities
The TDA7375 is equipped with a diagnostic cir-
cuitry able to detectthe followingevents:
Clipping in the outputsignal
Thermal shutdown
Outputfault:
– shortto GND
– shortto V
S
– softshort at turnon
The information is available across an open
collector output (pin 10) through a current sink-
ing whenthe event is detected
A current sinking at pin10 is provided when a cer-
tain distortionlevel is reachedat each output.This
function allows gain compression facility when-
everthe amplifier is overdriven.
ThermalShutdown
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-
Figure23:
OutputFault Waveforms (seefig.24)
Figure 21.
Figure22:
ClippingDetectionWaveforms
TDA7375A
TDA7375A
10/14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7375AV | 2 x 37W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7375H | 2 x 35W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7375V | 2 x 35W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7376PD | 2 X 35W POWER AMPLIFIER FOR CAR RADIO |
| TDA7377 | 2 x 30WDUAL/QUAD POWER AMPLIFIER FOR CAR RADIO |
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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