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TDA7451 数据表(PDF) 4 Page - STMicroelectronics

部件名 TDA7451
功能描述  4x7W OR 2x22W CAR RADIO POWER AMPLIFIER PLUS TRIPLE POWER SUPPLY
PDF  9 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7451 数据表(HTML) 4 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Refer to the test circuit; VS = 14.4V; RL =4
Ω,Tamb =25°C,
f = 1kHz, unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
GENERAL
Iq
Total Quiescent Current
IL01,IL02,IL03 = 5mA
80
150
mA
VSB IN
ST-BY IN Threshold Voltage
1.5
V
VSB OUT
ST-BY OUT Threshold Voltage
3.5
V
IST-BY
Stand-by Current Consumption
IL01 = 2mA
0.5
mA
AUDIO SECTION
PO
Output Power
RL =4
Ω; THD = 10%
Bridge
Single Ended
19
6
22
7
W
W
Po EIAJ
EIAJ Output Power (**)
VS = 13.7V
Bridge
Single Ended
26
7.5
28
8.5
W
W
Po max.
Max. Output Power (**)
VS = 14.4V
Bridge
Single Ended
30
8
32
9.5
W
W
d
Distortion
RL =4
Ω;
Single Ended, PO = 0.1 to 3W
Bridge, PO = 0.1 to 8W
0.04
0.06
0.3
0.3
%
%
CT
Cross Talk
f = 1kHz; Rg =0
f = 10kHz; Rg =0
50
60
55
dB
dB
RIN
Input Impedance
Single Ended
Bridge
70
35
100
50
130
65
K
Ω
K
Ω
GV
Voltage Gain
Single Ended
Bridge
19
25
20
26
21
27
dB
dB
GV
Voltage Gain Match.
1
dB
BW
Bandwidth
-3dB
100
KHz
ENO
Output Noise Voltage (*)
Rg = 0; Single Ended
100
µV
SVR
Supply Voltage Rejection
Rg = 0; f = 100Hz; Single Ended
48
55
dB
ASB
Stand-by Attenuation
90
100
dB
IPIN 8
ST-BY Pin Current
Play mode; Vpin8 = 5V
-10
30
µA
AM
MUTE Attenuation
80
90
dB
VMIN
MUTE IN Threshold Voltage
1.5
V
VM OUT
MUTE OUT Threshold Voltage
3.5
V
ICD
Clipping Detector Current
(Pull up to 5V with 10K
Ω)
CDoff: Pomin = 3.5W
5
µA
CDon: THD = 5%
50
190
280
µA
POWER SUPPLY SECTION
VO1
Output Voltages
I01 = 5mA
4.85
5
5.15
V
∆VO1
Load Regulation 1
I01 = 5 to 150mA
80
mV
ILO1
Current Limit
V01 = 0V
250
350
600
mA
∆VO1
Dropout Voltages
I01 = 150mA
700
mV
SVR
Ripple Rejection
Vripple = 1Vpp; I01 = 50mA
f = 100Hz
f = 10KHz
60
50
dB
dB
∆VO1
Line Regulation 1
VS = 8 to 18V; IO1 = 5mA
10
40
mV
RESET
Reset On
Low VREG1 Reset On Threshold
3.5
4.0
4.7
V
Reset Off
Low VREG1 Reset Off Threshold
4.25
V
Reset Hyst
Reset Threshold Hysteresis vs
Reg 1
250
500
mV
Vout on Reset
Reset Output Voltage
Reset activated
R(Reset to VReg1)
≥ 15K
1.5
V
(*) 22Hz to 22KHz
TDA7451
4/9



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