- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98166 > TB2902HQ 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 PDF資料下載
參數(shù)資料
| 型號： | TB2902HQ |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 45 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封裝： | 1 MM PITCH, PLASTIC, HZIP-25 |
| 文件頁數(shù)： | 4/38頁 |
| 文件大?。?/td> | 444K |
| 代理商： | TB2902HQ |
第1頁第2頁第3頁當前第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
TB2902HQ
2004-08-18
12
(3)
Description for permanent diagnosis
This IC can provide permanent diagnosis under the following conditions, whether they occur before
or after turning ON:
-Short to GND
-Short to VCC
-Output to output short circuit
-Output offset detection
-Current detection for tweeter open
This permanent diagnosis is available not only with the diagnostic cycle byte: IB1 D6 set at 1 but
also when set at 0.
Additionally, the signal can be obtained by entering just a read command. It is not necessary to
write the data.
With permanent diagnosis fault detection, the first read data after fault removal will still show a
Fault. Therefore, it is necessary to obtain 3 or more readings in order to prevent a miss judgment.
For example, the speaker sometimes makes a large counter electro motive force which this IC could
recognize as a fault event.
Additionally, this permanent diagnosis is automatically on after the turning on diagnosis operation
finished therefore there is no need to send the extra command.
Figure 7
Permanent Diagnosis Timing Chart for Each Short Detection
Turn On diagnostic
acquisition time (80 ms typ.)
Turn On diagnostic
DATA permitted time
READ DATA
WRITE DATA
READ DATA
result faulty
FAULT
event
Pin10
ripple
voltage
READ DATA
result not faulty
FAULT
removed
READ DATA
result faulty
Permanent diagnostic DATA
permitted time
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TB2903HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2903HQ | 29 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2904HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2904HQ | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| TB2905HQ | 55 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB2903HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 47W BTL x 4-ch Audio Power IC |
| TB2904HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Maximum Power 43 W BTL ?4-ch Audio Power IC |
| TB2905HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Class KB High-Efficiency, Low-Frequency Power Amplifier IC Maximum Power: 47 W x 4 Channels |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。