Datasheet

Electrical specifications TDA7491LP
10/37 Doc ID 13541 Rev 5
3.3 Electrical specifications
Unless otherwise stated, the results in Ta ble 5 below are given for the conditions: V
CC
=9V,
R
L
(load) = 8Ω, R
OSC
= R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, G
V
= 20 dB, and T
amb
=25°C.
Table 5. Electrical specifications
Symbol Parameter Condition Min Typ Max Unit
V
CC
Supply voltage - 5 - 14 V
I
q
Total quiescent current Without LC filter - 26 35 mA
I
qSTBY
Quiescent current in standby - - - 10 µA
V
OS
Output offset voltage
Play mode -100 - 100 mV
Mute mode -60 - 60 mV
I
OCP
Overcurrent protection threshold R
L
= 0 Ω 3--A
T
j
Junction temperature at thermal
shutdown
- - 150 - °C
R
i
Input resistance Differential input 54 68 - kΩ
V
UVP
Undervoltage protection
threshold
- --4.5V
R
dsON
Power transistor on resistance
High side - 0.2 -
Ω
Low side - 0.2 -
P
o
Output power
THD = 10% - 5.0 -
W
THD = 1% - 4.0 -
P
o
Output power
R
L
= 4 Ω, THD = 10%,
V
CC
=6.6V
-5.0-
W
R
L
= 4 Ω, THD = 1%,
V
CC
=6.6V
-4.0-
P
D
Dissipated power
P
o
= 5 W + 5 W,
THD = 10%
-1.0-W
η Efficiency
P
o
= 5 W + 5 W,
R
L
= 8 Ω, THD = 10%,
V
CC
=9V
-90-%
THD Total harmonic distortion P
o
= 1 W - 0.1 - %
G
V
Closed loop gain
GAIN0 = L, GAIN1 = L 18 20 22
dB
GAIN0 = L, GAIN1 = H 24 26 28
GAIN0 = H, GAIN1 = L 28 30 32
GAIN0 = H, GAIN1 = H 30 32 34
ΔG
V
Gain matching - -1 - 1 dB
CT Crosstalk f = 1 kHz, P
o
= 1 W - 70 - dB
eN Total input noise
A Curve, G
V
= 20 dB - 15 -
µV
f = 22 Hz to 22 kHz - 20 -