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參數(shù)資料
| 型號： | TB2905HQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 55 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件頁數(shù)： | 15/19頁 |
| 文件大小： | 439K |
| 代理商： | TB2905HQ |
TB2905HQ
2006-04-28
5
4.
Offset Detection Function
Pin 25 can be used to detect an offset voltage that may appear on an output pin due to input capacitor
leakage or other reasons.
Output DC
voltage (
+)
Offset detection threshold
(RS1 detection)
VCC/2
(normal DC voltage)
GND
Time
GND
Voltage at point A
(output of pin 25)
Voltage at point B
(LPF output)
Offset detection threshold
(RS2 detection)
Time
RS2
Figure 6
Example application and detection mechanism
Vref
Electrical
volume
25
5 V
L.P.F.
smoothing
circuit
To microcontroller The
microcontroller shuts down the
system if the output is lower than
the specified voltage.
+
V
Output offset voltage
(upon input capacitor leakage or short-circuit)
Output DC voltage (
) (for RS2)
Output DC voltage (
+) (for RS1)
VCC/2 (normal DC voltage)
Capacitor leakage
or short-circuit
Vbias
Vref/2
A
B
R
S2
RS1
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| TB2906HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2906HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2912HQ | 27 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2913HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB2905HQ(O) | 功能描述:音頻放大器 25W x 4ch Class-KB Car Pwr Amp 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 |
| TB2906HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL x 4-ch Audio Power IC |
| TB2913HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 47 W BTL 】 4-ch Audio Power IC |
| TB2915AHQ(O) | 制造商:Toshiba America Electronic Components 功能描述:IC AMP BTL AUDIO 45W 4CH HZIP25 |
| TB2915HQ(O) | 功能描述:音頻放大器 45W x 4-CH high-EFF car power amp 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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