TDA7451 Datasheet, PDF (4/9 Pages) STMicroelectronics – 4x7W OR 2x22W CAR RADIO POWER AMPLIFIER PLUS TRIPLE POWER SUPPLY

TDA7451
ELECTRICAL CHARACTERISTICS (Refer to the test circuit; V_S = 14.4V; R_L = 4Ω, T_amb = 25°C,
f = 1kHz, unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
GENERAL
I_q
V_{SB IN}
V_{SB OUT}
I_ST-BY
Total Quiescent Current
ST-BY IN Threshold Voltage
ST-BY OUT Threshold Voltage
Stand-by Current Consumption
I_L01, I_L02, I_L03 = 5mA
I_L01 = 2mA
80
150 mA
1.5
V
3.5
V
0.5 mA
AUDIO SECTION
P_O
Output Power
R_L = 4Ω; THD = 10%
Bridge
19
22
W
Single Ended
6
7
W
P_{o EIAJ}
EIAJ Output Power (**)
VS = 13.7V
Bridge
26
28
W
Single Ended
7.5
8.5
W
P_{o max.} Max. Output Power (**)
VS = 14.4V
Bridge
Single Ended
30
32
W
8
9.5
W
d
Distortion
R_L = 4Ω;
Single Ended, P_O = 0.1 to 3W
Bridge, P_O = 0.1 to 8W
0.04 0.3
%
0.06 0.3
%
CT
Cross Talk
f = 1kHz; R_g = 0
f = 10kHz; Rg = 0
50
60
dB
55
dB
R_IN
Input Impedance
Single Ended
Bridge
70
100 130 KΩ
35
50
65
KΩ
G_V
Voltage Gain
Single Ended
Bridge
19
20
21
dB
25
26
27
dB
G_V
Voltage Gain Match.
1
dB
BW
Bandwidth
-3dB
100
KHz
E_NO
Output Noise Voltage (*)
R_g = 0; Single Ended
100
µV
SVR
Supply Voltage Rejection
R_g = 0; f = 100Hz; Single Ended 48
55
dB
ASB
Stand-by Attenuation
90
100
dB
I_{PIN 8}
ST-BY Pin Current
Play mode; Vpin8 = 5V
-10
30
µA
A_M
MUTE Attenuation
80
90
dB
V_{M IN}
MUTE IN Threshold Voltage
1.5
V
V_{M OUT}
I_CD
MUTE OUT Threshold Voltage
Clipping Detector Current
(Pull up to 5V with 10KΩ)
CDoff: P_omin = 3.5W
CDon: THD = 5%
3.5
V
5
µA
50
190 280
µA
POWER SUPPLY SECTION
V_O1
Output Voltages
∆V_O1
Load Regulation 1
I_LO1
Current Limit
∆V_O1
Dropout Voltages
SVR
Ripple Rejection
∆V_O1
RESET
Reset On
Reset Off
Reset Hyst
Vout on Reset
Line Regulation 1
Low V_REG1 Reset On Threshold
Low V_REG1 Reset Off Threshold
Reset Threshold Hysteresis vs
Reg 1
Reset Output Voltage
I₀₁ = 5mA
I₀₁ = 5 to 150mA
V₀₁ = 0V
I₀₁ = 150mA
V_ripple = 1Vpp; I₀₁ = 50mA
f = 100Hz
f = 10KHz
V_S = 8 to 18V; I_O1 = 5mA
Reset activated
R(Reset to V_Reg1) ≥ 15K
4.85
5
5.15
V
80
mV
250 350 600 mA
700 mV
60
dB
50
dB
10
40
mV
3.5
4.0
4.7
V
4.25
V
250 500 mV
1.5
V
(*) 22Hz to 22KHz
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