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參數(shù)資料
| 型號(hào)： | TDA8566 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2 x 25 W BTL stereo car radio power amplifier with differential inputs and diagnostic outputs |
| 中文描述： | 2 × 25瓦橋接立體聲汽車收音機(jī)的差分輸入和輸出功率放大器診斷 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 110K |
| 代理商： | TDA8566 |
1998 Sep 23
5
Philips Semiconductors
Product specification
2
×
25 W BTL stereo car radio power amplifier
with differential inputs and diagnostic outputs
TDA8566Q
Short-circuit diagnostic (pin 15)
When a short-circuit occurs at one or more outputs to
ground or to the supply voltage, the output stages are
switched off until the short-circuit is removed and the
device is switched on again (with a delay of approximately
20 ms after the removal of the short-circuit). During this
short-circuit condition, pin 15 is continuously low.
When a short-circuit occurs across the load of one or both
channels, the output stages are switched off for
approximately 20 ms. After approximately 50
μ
s the load
condition is again checked to see if the short-circuit is still
present. Due to this duty cycle of 50
μ
s/20 ms the average
current consumption during this short-circuit condition is
very low (approximately 40 mA). During this short-circuit
condition, pin 15 is low for 20 ms and high for 50
μ
s (see
Fig.4). The power dissipation in any short-circuit condition
is very low.
Temperature pre-warning (pin 15)
When the junction temperature (T
vj
) reaches 145
°
C,
pin 15 will become continuously low.
Open-collector outputs
Pins 4 and 15 are open-collector outputs, therefore more
devices can be tied together. Pins 4 and 15 can also be
tied together. An external pull-up resistor is required.
Differential inputs
The input stage is a high-impedance fully differential
balanced input stage that is also capable of operating in a
single-ended mode with one of the inputs capacitively
coupled to an audio ground. It should be noted that if a
source resistance is added (input voltage dividers) the
CMRR degrades to lower values.
Fig.3 Clip detection waveforms.
handbook, halfpage
V4
0
VP
Vout
0
t
MGD103
Fig.4 Short-circuit diagnostic timing diagram.
handbook, full pagewidth
MGA707
short-circuit over the load
20 ms
50
μ
s
t
t
VP
current
in
output
stage
V15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8566Q | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 25 W BTL stereo car radio power amplifier with differential inputs and diagnostic outputs |
| TDA8566Q/N2,112 | 功能描述:音頻放大器 CARRADIO POWER AMPLIFIERS 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 |
| TDA8566Q/N2C | 功能描述:音頻放大器 2X25W BTL STEREO RADIO 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8566Q/N2C,112 | 功能描述:音頻放大器 2X25W BTL STEREO 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 |
| TDA8566Q/N2S,112 | 功能描述:音頻放大器 BTL CAR RADIO PWRAMP DIFF INPT DIAG OUTPT 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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