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参数资料
| 型号： | TDA7482 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 25 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封装： | MULTIWATT-15 |
| 文件页数： | 3/7页 |
| 文件大小： | 112K |
| 代理商： | TDA7482 |
3/7
TDA7482
Table 5. Electrical Characteristcs (Refer to the test circuit, VCC = ±21V; RL = 8; RS = 50;
RF = 12K; Demod.. filter L = 60H, C = 470nF; f = 1KHz; Tamb = 25°‘C unless otherwise specified.)
*:
The output LC filtermust be changed to: L = 30
H; C = 1F
**:
PO = measured across the load using the following inductor: COIL 58120 MPPA2 (magnetics) TURNS: 28 φ 1mm
***:
The zero-signal switching frequency can be obtained using the following expression: FSW= BF/RF
****:
The maximum value of RF is related to the maximum possible value for the voltage drop on RF itself
(1)
For V10 >5.2V, an input impedance of 10K
is to be considered
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Supply Range
±10
±25
V
Iq
Total Quiescent Current
RL =
∞, No LC Filter
40
60
mA
VOS
Output Offset Voltage
Play Condition
–70
-30
10
mV
PO
Output Power
THD = 10%
THD = 1%
20
14
25
18
W
PO
Output Power
RL = 4 ; VCC = ±16V;
THD = 10%
THD = 1% (*)
25
18
W
PD
Maximum Dissipated Power
VCC =±21V; RL = 8;
PO = 25W THD 10%
3.8
W
η
Efficiency
≡
()
VCC = ±21V; RL = 8;
PO = 18W THD 10%
87
%
ηmax
Top Efficiency maximum
VCC = ±25V; RL = 8;
PO = 43W THD 20%
88.5
%
THD
Total Harmonic Distortion
RL = 8; PO = 1W
0.1
%
Imax
Overcurrent Protection Threshold
RL = 0
3.5
5
A
Tj
Thermal Shut-down Junction
Temperature
150
°C
GV
Closed Loop Gain
29
30
31
dB
eN
Total Input Noise
A Curve
f = 20Hz to 22KHz
7
12
V
VCCTOT MAX Maximum Total VCC Protection
50
V
Ri
Input Resistance
20
30
k
SVR
Supply Voltage Rejection
f = 100Hz; Vr = 0.5
46
60
dB
Tr, Tf
Rising and Falling Time
50
ns
RDSON
Power Transistor on Resistance
0.4
FSW-OP
Switching Frequency Operative
Range
100
200
KHz
FSW
Switching Frequency
100
120
140
KHz
BF
Zero Signal Frequency
Constant (***)
1.4x109
Hz
RF
Frequency Controller Resistor
Range (****)
712
14
K
MUTE & STAND-BY FUNCTIONS
VST-BY
Stand-by range
0.8
V
VMUTE
Mute Range
1.8
2.5
V
VPLAY
Play Range (1)
4
V
AMUTE
Mute Attenuation
60
80
dB
IqST-BY
Quiescent Current @ Stand-by
3
5
mA
P
o
P
O
P
D
+
---------------------
P
o
P
I
------
≡
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7482_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:25W MONO CLASS-D AMPLIFIER |
| TDA7482BOARD | 功能描述:音频 IC 开发工具 Eval Brd for TDA7482 RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TDA7490 | 功能描述:音频放大器 25W Stereo "D" Amp 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 |
| TDA7490L | 功能描述:音频放大器 Class-D Amplifier 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 |
| TDA7490L_05 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:20W + 20W STEREO CLASS-D AMPLIFIER 40W MONO IN BTL |
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