- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98166 > TB2912HQ 27 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 PDF資料下載
參數(shù)資料
| 型號： | TB2912HQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 27 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件頁數(shù)： | 15/40頁 |
| 文件大?。?/td> | 580K |
| 代理商： | TB2912HQ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當(dāng)前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
TB2912HQ
2006-04-28
22
7. Caution for use
Turn on diagnosis mode
The comparator detect the voltage between speaker both ends.
If that voltage is larger, this detector judges “output load open”, while, if it is smaller, this detector judges
the “short load”.
But, in case of output shorted to VCC or shorted to GND condition, the voltage between speaker will be
surely changed.
Therefore, this system can not present exact information, for example, "Short to VCC" and "Short load"
are showed though output is shorted to Vcc but no short load.
In this case, the result as DET2 shall be dropped or ignored and DET1 is effective as DET1 is prior to
DET2.
Permanent diagnosis mode
Please arrange to read all self-diagnosis functions twice or more and apply judgment in order to avoid false
triggering. <Since the first diagnostic result has low confidence, please diagnose 2 times or more.>
Automatic turn on muting
The automatic turn on muting operates from when the turn on write command is sent, it is continued until
the Pin 10 ripple pin voltage reaches to about the 8VF=5.6V.
During this automatic turn on muting operation, output sound can not appear even if the mute off write
command is sent because the internal muting circuit operates.
The automatic turn on muting operation period is MIN=xx msec, MAX=zz msec in case of C2 (Pin 10)
= 10 uF, Vcc=9 to 18V and Tj = -40 to 150 degrees condition.
When the Turn on diagnosis is enable, the automatic muting period starts after Turn on diag cycle period.
This period is in proportion to the value of the C2 so that the characteristic of C2 shall be had a care, for
example, temperature, variation and so on.
AMP
DET circuit 1
(VCC/GND short)
DET circuit 2
(short/open)
AMP
OUT
SP
<Output stage>
AMP
S
5 V
I
= constant current
Comparator
<RL short/open detector, at TURN-on mode>
Figure 11 Automatic Turn on Muting Timing Chart
WRITE DATA
Pin10 ripple pin
Voltage=5.6V →
Turn ON diagnosis enable
Turn ON diagnosis defeat
Automatic Turn ON Muting
at Turn on diag defeat
Possible to play music if the mute off write command is sent
at Turn on diag defeat
Automatic Turn ON Muting
at Turn on diag enable
Possible to play music if the mute off write command is sent at Turn on diag enable
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TB2913HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2921AHQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2921HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2922HQ | 46 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM12 |
| TB2923AHQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| TB2921HQ(O) | 功能描述:音頻放大器 50W x 4-CH class-AB 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 |
| TB2922HQ | 制造商:Toshiba 功能描述:Pure complementary P-ch & N-ch DMOS output stage, BTL output form |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。