TDA7498E Datasheet, PDF (8/20 Pages) STMicroelectronics – 160-watt + 160-watt dual BTL class-D audio amplifier

Electrical specifications
TDA7498E
3.4
Electrical specifications
Unless otherwise stated, the values in the table below are specified for the conditions:
V_CC = 36 V, R_L = 4 Ω, R_OSC = R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, G_V = 23.6 dB
Tamb = 25 °C.
Table 6.
Symbol
Electrical specifications
Parameter
Condition
Min Typ Max Unit
I_q
I_qSTBY
V_OS
I_OCP
T_j
R_i
V_UVP
R_dsON
P_o
P_o
η
THD
G_V
ΔG_V
C_T
Vn
SVRR
T_r, T_f
f_SW
f_SWR
Total quiescent current
No LC filter, no load
-
60
mA
Quiescent current in standby
-
-
1
µA
Output offset voltage
Vi = 0 Av = 23.6 dB,
no load
-20 -
20 mV
Overcurrent protection threshold
Junction temperature at thermal
shutdown
R_L = 0 Ω
-
10 11 14 A
140 150 160 °C
Input resistance
Differential input
69 -
kΩ
Undervoltage protection threshold -
-
-
8
V
Power transistor on resistance
High side
Low side
-
0.15 -
Ω
-
0.15 -
Output power
THD = 10%
THD = 1%
-
160 -
W
-
125 -
Parallel BTL (mono) output power, ^{THD = 10%}
R_L = 3 ohm, Vcc = 36 V
THD = 1%
-
220 -
W
-
170 -
Efficiency
-
85 -
%
Total harmonic distortion
P_o = 1 W
GAIN0 < 0.25*VDD
-
0.05 -
%
23.8
Closed-loop gain
0.25*VDD < GAIN < 0.5*VDD
0.5*VDD < GAIN < 0.75*VDD
29.8
dB
33.3
GAIN > 0.75*VDD
35.8
Gain matching
-
-1 -
1
dB
Crosstalk
Total output noise
f = 1 kHz, P_o = 1 W
50 60 -
dB
Inputs shorted and to Ground A
curve
231
µV
Inputs shorted and to Ground
f = 20 Hz to 20 kHz
400
µV
Supply voltage rejection ratio
Rise and fall times
fr = 100 Hz, Vr = 0.5 Vpp,
C_SVR = 10 µF
-
-
55 -
dB
-
35 -
ns
Switching frequency
Internal oscillator
240 310 400 kHz
Output switching frequency range
With internal oscillator by changing
Rosc⁽¹⁾
240
-
kHz
8/20
Doc ID 022595 Rev 1