TDA7498MV Datasheet, PDF (9/27 Pages) STMicroelectronics – 100-watt mono BTL class-D audio amplifier

TDA7498MV
Electrical specifications
3.4
Electrical specifications
Unless otherwise stated, the results in Table 6 below are given for the conditions:
V_CC = 36 V, R_L (load) = 6 Ω, R_OSC = R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, G_V = 25.6 dB and
Tamb = 25 °C.
Table 6.
Symbol
Electrical specifications
Parameter
Condition
Min Typ Max Unit
I_q
I_qSTBY
V_OS
I_OCP
T_jS
R_i
V_OVP
V_UVP
R_dsON
P_o
P_o
P_D
η
THD
G_V
∆G_V
eN
SVRR
T_r, T_f
f_SW
Total quiescent current
No LC filter, no load
-
40 60 mA
Quiescent current in standby -
-
1
10 µA
Output offset voltage
Play mode
Mute mode
-100 -
-60 -
100
mV
60
Overcurrent protection threshold R_L = 0 Ω
Junction temperature at thermal
shutdown
-
5.5 7
-
A
-
150 -
°C
Input resistance
Differential input
48 60 -
kΩ
Overvoltage protection threshold -
42 43 -
V
Undervoltage protection
threshold
-
-
-
8
V
Power transistor on resistance
High side
Low side
-
0.2 -
Ω
-
0.2 -
Output power
THD = 10%
THD = 1%
-
100 -
W
-
78 -
Output power
Dissipated power
R_L = 8 Ω, THD = 10%,
V_CC = 36V
-
80 -
W
P_o = 100 W,
THD = 10%
-
10 -
W
Efficiency
Total harmonic distortion
P_o = 100 W
P_o = 1 W
GAIN0 = L, GAIN1 = L
-
90 -
%
-
0.1 -
%
24.6 25.6 26.6
Closed-loop gain
GAIN0 = L, GAIN1 = H
GAIN0 = H, GAIN1 = L
30.6 31.6 32.6
dB
34.1 35.1 36.1
GAIN0 = H, GAIN1 = H 36.6 37.6 38.6
Gain matching
-
-1 -
1
dB
Total input noise
A Curve, G_V = 20 dB
-
15 -
µV
f = 22 Hz to 22 kHz
-
25 50
Supply voltage rejection ratio
fr = 100 Hz, Vr = 0.5 Vpp,
C_SVR = 10 µF
-
70 -
dB
Rise and fall times
-
-
50 -
ns
Switching frequency
Internal oscillator
290 310 330 kHz
Doc ID 16505 Rev 3
9/27