參數(shù)資料
型號(hào)： TDF8555J/N1
廠(chǎng)商： NXP SEMICONDUCTORS
元件分類(lèi)： 音頻／視頻放大
英文描述： 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37
封裝： PLASTIC, SOT725-1, 37 PIN
文件頁(yè)數(shù)： 16/55頁(yè)
文件大?。?/td> 534K
代理商： TDF8555J/N1
TDF8555J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 29 August 2011
23 of 55
NXP Semiconductors
TDF8555J
4
45 W power amplifier with multiple voltage regulator
8.8 Temperature protection
The amplifier is switched off when the regulator junction temperature becomes too high to
prevent undefined audio signals when the regulators are switched off while the amplifier is
still on. A regulator junction temperature that is too high is indicated by pin DIAG and can
be read out via the I2C-bus DB2[D6].
If the junction temperature still increases and the regulator reaches the maximum
temperature protection level, all regulators and switches will be disabled except the
outputs of regulator 2 and 6.
9.
I2C-bus specification
Fig 15. Foldback current protection
VO(reg)
IOS
IOlim
IO(reg)
001aan206
Table 8.
TDF8555J hardware address
A6
A5
A4
A3
A2
A1
A0
R/W
Hex
1
0
1
0
0 = write to TDF8555J; 1 =
read from TDF8555J
D8
Fig 16. Definition of START and STOP conditions
001aam703
SDA
SCL
P
STOP condition
S
START condition
SDA changes when SCL is HIGH:
start
or stop condition
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TDF8590TH/N1,118 功能描述:音頻放大器 AMPLIFIER CLASS D RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
TDF8590TH/N1S,118 功能描述:音頻放大器 4/8 OHM CLASS D AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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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