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TDA7491LP13TR Datasheet, PDF (10/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier
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Electrical specifications
TDA7491LP
3.3
Electrical specifications
Unless otherwise stated, the results in Table 5 below are given for the conditions: VCC = 9 V,
RL (load) = 8Ω, ROSC = R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, GV = 20 dB, and Tamb = 25 °C.
Table 5.
Symbol
Electrical specifications
Parameter
Condition
Min Typ Max Unit
VCC
Iq
IqSTBY
VOS
IOCP
Tj
Ri
VUVP
RdsON
Po
Po
PD
η
THD
GV
ΔGV
CT
eN
Supply voltage
-
5
-
14 V
Total quiescent current
Without LC filter
-
26 35 mA
Quiescent current in standby -
-
-
10 µA
Output offset voltage
Play mode
Mute mode
-100 -
-60 -
100 mV
60 mV
Overcurrent protection threshold RL = 0 Ω
Junction temperature at thermal
shutdown
-
3
-
-
A
-
150 -
°C
Input resistance
Differential input
54 68 -
kΩ
Undervoltage protection
threshold
-
-
-
4.5 V
Power transistor on resistance
High side
Low side
-
0.2 -
Ω
-
0.2 -
Output power
THD = 10%
THD = 1%
-
5.0 -
W
-
4.0 -
Output power
Dissipated power
RL = 4 Ω, THD = 10%,
VCC = 6.6 V
-
5.0 -
W
RL = 4 Ω, THD = 1%,
VCC = 6.6 V
-
4.0 -
Po = 5 W + 5 W,
THD = 10%
-
1.0 -
W
Efficiency
Total harmonic distortion
Po = 5 W + 5 W,
RL = 8 Ω, THD = 10%, -
90 -
%
VCC = 9 V
Po = 1 W
-
0.1 -
%
GAIN0 = L, GAIN1 = L 18 20 22
Closed loop gain
GAIN0 = L, GAIN1 = H 24 26 28
dB
GAIN0 = H, GAIN1 = L 28 30 32
GAIN0 = H, GAIN1 = H 30 32 34
Gain matching
-
-1 -
1
dB
Crosstalk
Total input noise
f = 1 kHz, Po = 1 W
-
70 -
dB
A Curve, GV = 20 dB
-
15 -
µV
f = 22 Hz to 22 kHz
-
20 -
10/37
Doc ID 13541 Rev 5
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