TDA7389 Datasheet, PDF (6/14 Pages) STMicroelectronics – 4 x 45W quad bridge car radio amplifier

Electrical specifications
2
Electrical specifications
TDA7389
2.1
Absolute maximum ratings
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
V_S
Operating supply voltage
18
V
V_{S (DC)} DC supply voltage
28
V
V_{S (pk)} Peak supply voltage (t = 50ms)
50
V
Output peak current:
I_O
Repetitive (duty cycle 10% at f = 10Hz)
4.5
A
Non repetitive (t = 100μs)
5.5
P_tot
Power dissipation, (T_case = 70°C)
T_j
Junction temperature
T_stg
Storage temperature
80
W
150
°C
– 55 to 150
°C
2.2
Thermal data
Table 3. Thermal data
Symbol
Parameter
R_{th j-amb} Thermal resistance junction to ambient
Value
max.
1
Unit
°C/W
2.3
Electrical characteristics
Table 4.
Electrical characteristics
(V_S = 14.4V; f = 1KHz; R_g = 600Ω; R_L = 4Ω; T_amb = 25°C; Refer to the test and application
diagram (Figure 14), unless otherwise specified.)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
I_q1
V_OS
dV_OS
Quiescent current
Output offset voltage
During mute on/off output
offset voltagef
During st-by on/off output
offset voltage
R_L = ∞
Play Mode
ITU R-ARM weighted
see Figure 13
150 350 mA
±80 mV
-10
10
mV
-50
50
G_v
ΔG_v
P_o
P_{o max}
Voltage gain
Channel gain unbalance
Output power
Max.output power⁽¹⁾
THD = 10%; V_S = 14.4V
V_S = 14.4V
25
26
27
dB
±1
dB
26
28
W
41
45
W
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