參數(shù)資料
型號(hào)： TDA8932TW
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 25 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO32
封裝： 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT549-1, HTSSOP-32
文件頁(yè)數(shù)： 3/45頁(yè)
文件大小： 285K
代理商： TDA8932TW
TDA8932_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Preliminary data sheet
Rev. 01 — 11 May 2006
11 of 45
Philips Semiconductors
TDA8932
Class-D audio amplier
In a symmetrical supply the UBP is released when the unbalance of the supply voltage is
within 6 % of it starting value.
Table 6 shows an overview of all protections and the effect on the output signal.
8.5 Diagnostic input and output
Whenever one of the protections is triggered, except for TF, pin DIAG is activated to LOW
level (see Table 6). An internal reference supply will pull-up the open-drain DIAG output to
approximately 2.4 V. This internal reference supply can deliver approximately 50
A.
Pin DIAG refers to pin CGND. The diagnostic output signal during different short
conditions is illustrated in Figure 6. Using pin DIAG as input, a voltage < 0.8 V will put the
device into Fault mode.
8.6 Differential inputs
For a high common-mode rejection ratio and a maximum of exibility in the application,
the audio inputs are fully differential. By connecting the inputs anti-parallel, the phase of
one of the two channels can be inverted, so that the amplier can operate as a mono BTL
amplier. The input conguration for a mono BTL application is illustrated in Figure 7.
In SE conguration it is also recommended to connect the two differential inputs in
anti-phase. This has advantages for the current handling of the power supply at low signal
frequencies and minimizes supply pumping (see also Section 14.8).
Table 6.
Overview protections
Protection
Restart
When fault is removed
Every 100 ms
OTP
no
yes
OCP
yes
no
WP
yes
no
UVP
no
yes
OVP
no
yes
UBP
no
yes
Fig 6.
Diagnostic output for different kind of short circuit conditions
001aad759
≈ 50 ms
shorted load
amplifier
restart
no restart
≈ 50 ms
0 V
2.4 V
Vo
short to
supply line
0 V
2.4 V
Vo
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TDA8933 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Class-D audio amplifier
TDA8933B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Class D audio amplifier
TDA8933BTW 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Class D audio amplifier
TDA8933BTW/N2,112 功能描述:音頻放大器 Class D audio amplifier 32 leads 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
TDA8933BTW/N2,118 功能描述:音頻放大器 Class D audio amplifier 32 leads 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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