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參數(shù)資料
| 型號(hào)： | LV47002P |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 48 W, 4 CHANNEL, AUDIO AMPLIFIER, ZIP25 |
| 封裝： | HZIP-25 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 156K |
| 代理商： | LV47002P |
LV47002P
4. Self-diagnostics function (pin 25)
By detecting the unusual state of the IC, the signal is output to the pin 25.
Also, by controlling the standby switch after the signal of the pin 25 is detected by the microcomputer, the burnout of
the speaker can be prevented.
(1) Shorting to VCC/Shorting to ground : The pin 25 becomes the low level.
(2) Load shorting
: The pin 25 is alternated between the low level and the high level
according to the output signal.
(3) Output offset detection
: when the output offset voltage exceeds the detection threshold voltage,
the pin 25 becomes the low level.
* Note: The output offset abnormality is thought of as the leakage current of the input capacitor.
In addition, the pin 25 has become the NPN open collector output (active low).
The pin 25 must be left open when this function is not used.
+
-
+
-
+
16
25
5V
Speaker pin
output voltage
+1.8V (typical)
-1.8V (typical)
time
0V
OFFSET
DIAG
OUT+
OUT-
RT
IN
AC GND
Output voltage
25 pin voltage
Fig3 Self-diagnosis Function Diagram
No.A1542-5/9
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV47002P-E | 功能描述:音頻放大器 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 |
| LV47004 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Channel BTL Power Amplifier |
| LV47004P | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Audio Systems 4-Channel BTL Power Amplifier |
| LV47004P_12 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For Car Audio Systems 4-Channel BTL Power Amplifier |
| LV47004P-E | 功能描述:音頻放大器 41W 4CH AB 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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