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参数资料
| 型号： | TDA7575BPDTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| 封装： | ROHS COMPLIANT, SOP-36 |
| 文件页数： | 20/32页 |
| 文件大小： | 487K |
| 代理商： | TDA7575BPDTR |
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TDA7575B
Diagnostics functional description
Doc ID 14103 Rev 2
Figure 37 shows the load impedance as a function of the peak output voltage and the
relevant diagnostic fields.
This feature is disabled if any overloads leading to activation of the short-circuit protection
occurs in the process.
Figure 37. Current detection high: load impedance |Z| vs. output peak voltage
Figure 38. Current detection low: load impedance |Z| vs. output peak voltage
7.5
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
Ω speaker unconnected is considered as double fault.
12
34
5
6
7
8
1
2
3
5
10
20
30
50
Vout (Peak)
Load |z| (Ohm)
Iout (peak) <250mA
Iout (peak) >500mA
Low current detection area
(Open load)
D5 = 1 of the DBx byres
High current detection area
(Normal load)
D5 = 0 of the DBx bytes
IB2(D0) = 0
0.5
1
1.5
2
2.5
3
3.5
4
1
2
3
5
10
20
30
50
Vout (Peak)
Load |z| (Ohm)
Iout (peak) <125mA
Iout (peak) >250mA
Low current detection area
(Open load)
D5 = 1 of the DBx byres
High current detection area
(Normal load)
D5 = 0 of the DBx bytes
IB2(D0) = 1
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相关代理商/技术参数 |
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|---|---|
| TDA7575PD | 功能描述:音频放大器 INFOTAINMENT S PWR RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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| TDA7577LV | 制造商:STMicroelectronics 功能描述:ABD AUDIO & POWER - Rail/Tube 制造商:STMicroelectronics 功能描述:Dual BTL output pwr amplifier for 24 V |
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