- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98198 > TDA7566 (STMICROELECTRONICS) 60 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 PDF資料下載
參數(shù)資料
| 型號： | TDA7566 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 60 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
| 封裝： | ROHS COMPLIANT, FLEXIWATT-25 |
| 文件頁數(shù)： | 9/29頁 |
| 文件大小： | 364K |
| 代理商： | TDA7566 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第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
TDA7566
Diagnostics functional description
Doc ID 9801Rev 5
4.5
Multiple faults
When more misconnections are simultaneously in place at the audio outputs, it is
guaranteed that at least one of them is initially read out. The others are notified after
successive cycles of I2C reading and faults removal, provided that the diagnostic is enabled.
This is true for both kinds of diagnostic (Turn on and Permanent).
The table below shows all the couples of double-fault possible. It should be taken into
account that a short circuit with the 4 ohm speaker unconnected is considered as double
fault.
S. GND (so) / S. GND (sk) in the above table make a distinction according to which of the 2
outputs is shorted to ground (test-current source side= so, test-current sink side = sk). More
precisely, in channels LF and LR, so = CH+, sk = CH-; in channels LR and RF, so = CH-, SK
= CH+.
In Permanent Diagnostic the table is the same, with only a difference concerning Open Load
(*), which is not among the recognizable faults. Should an Open Load be present during the
device's normal working, it would be detected at a subsequent Turn-on Diagnostic cycle (i.e.
at the successive Car Radio Turn-on).
4.6
Faults availability
All the results coming from I2C bus, by read operations, are the consequence of
measurements inside a defined period of time. If the fault is stable throughout the whole
period, it will be sent out. This is true for DC diagnostic (Turn-on and Permanent), for Offset
Detector, for AC Diagnostic (the low current sensor needs to be stable to confirm the Open
tweeter).
To guarantee always resident functions, every kind of diagnostic cycles (Turn on,
Permanent, Offset, AC) will be reactivate after any I2C reading operation. So, when the
micro reads the I2C, a new cycle will be able to start, but the read data will come from the
previous diag. cycle (i.e. The device is in Turn On state, with a short to Gnd, then the short is
removed and micro reads I2C. The short to GND is still present in bytes, because it is the
result of the previous cycle. If another I2C reading operation occurs, the bytes do not show
the short). In general to observe a change in Diagnostic bytes, two I2C reading operations
are necessary.
Table 5.
Double fault table for turn-on diagnostic
S. GND (so)
S. GND (sk)
S. Vs
S. Across L.
Open L.
S. GND (so)
S. GND
S. Vs + S.
GND
S. GND
S. GND (sk)
/
S. GND
S. Vs
S. GND
Open L. (*)
S. Vs
/
S. Vs
S. Across L.
/
S. Across L.
N.A.
Open L.
/
Open L. (*)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7567PDTR | AUDIO AMPLIFIER, PDSO36 |
| TDA7567PD | AUDIO AMPLIFIER, PDSO36 |
| TDA7571 | 250 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TDA7575BPDTR | 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| TDA7575BPD | 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7566_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4x40W multifunction quad power amplifier with built-in diagnostics features |
| TDA7566_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 x 40 W multifunction quad power amplifier with built-in diagnostics features |
| TDA7567PD | 功能描述:音頻放大器 4 x 50W Multi Quad Built-in Diagnostic 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 |
| TDA7567PDTR | 功能描述:音頻放大器 4 x 50W Multi Quad Built-in Diagnostic 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 |
| TDA7569BLV | 功能描述:Amplifier IC 4-Channel (Quad) Class AB 27-Flexiwatt (Vertical) 制造商:stmicroelectronics 系列:- 包裝:管件 零件狀態(tài):有效 類型:AB 類 輸出類型:4-通道（四路） 不同負(fù)載時(shí)的最大輸出功率 x 通道數(shù):50W x 4 @ 4 歐姆 電壓 - 電源:6 V ~ 18 V 特性:靜音，短路和熱保護(hù) 安裝類型:通孔 工作溫度:-40°C ~ 105°C（TA） 供應(yīng)商器件封裝:27 Flexiwatt（垂直） 封裝/外殼:27 Flexiwatt（成型引線） 標(biāo)準(zhǔn)包裝:17 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。