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参数资料
| 型号： | TDA2004R |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 12 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
| 封装： | ROHS COMPLIANT, MULTIWATT-25 |
| 文件页数： | 4/17页 |
| 文件大小： | 287K |
| 代理商： | TDA2004R |
Application suggestion
TDA2004R
Doc ID 17614 Rev 1
3
Application suggestion
The recommended values of the components are those shown on application circuit of
Figure 2. Different values can be used; the following table can help the designer.
3.1
Built-in protection systems
3.1.1
Load dump voltage surge
The TDA2004R has a circuit which enables it to withstand voltage pulse train, on Pin 9, of
the type shown in Figure 20. If the supply voltage peaks to more than 40 V, then an LC filter
must be inserted between the supply and pin 9, in order to assure that the pulses at pin 9
will be held within the limits shown.
A suggested LC network is shown in Figure 19. With this network, a train of pulses with
amplitude up to 120 V and width of 2 ms can be applied at point A. This type of protection is
ON when the supply voltage (pulse or DC) exceeds 18 V. For this reason the maximum
operating supply voltage is 18 V.
Table 5.
Recommended values of the component of the application circuit
Component
Recommended
value
Purpose
Larger than
Smaller than r
R1
120 k
Ω
Optimization of the
output signal symmetry
Smaller Pomax
R2, R4
1 k
Ω
Closed loop gain setting
(1)
Increase of gain
Decrease of gain
R3, R5
3.3
Ω
Decrease of gain
Increase of gain
R6, R7
1
Ω
Frequency stability
Danger of oscillation
at high frequency with
inductive load
C1, C2
2.2
μF
Input DC decoupling
High turn-on delay
High turn-on pop, higher
low frequency cutoff.
Increase of noise
C3
10
μF
Ripple rejection
Increase of SVR,
Increase of the switch-on
time
Degradation of SVR
C4, C6
100
μF
Bootstrapping
-
Increase of distortion at
low frequency
C5, C7
100
μF
Feedback input DC
decoupling
--
C8, C9
0.1
μF
Frequency stability
-
Danger of oscillation
C10, C11
1000 to 2200
μF
Output DC decoupling
-
Higher low-frequency
cut-off
1.
The closed loop gain must be higher than 26 dB.
相关PDF资料 |
PDF描述 |
|---|---|
| TDA2005R | 22 W, 2 CHANNEL, AUDIO AMPLIFIER, ZFM11 |
| TDA2005M | 22 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
| TDA2005S | 12 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM11 |
| TDA2006H | 12 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| TDA2006V | 12 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA2005 | 制造商:STMicroelectronics 功能描述:2005 |
| TDA2005G-H14-B-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:20W BRIDGE AMPLIFIER FOR CAR RADIO |
| TDA2005G-J11-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:20W BRIDGE AMPLIFIER FOR CAR RADIO |
| TDA2005L-H14-B-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:20W BRIDGE AMPLIFIER FOR CAR RADIO |
| TDA2005L-J11-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:20W BRIDGE AMPLIFIER FOR CAR RADIO |
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