DocID1509 Rev 5 7/13
TDA7391 Electrical specifications
12
2 Electrical specifications
2.1 Absolute maximum ratings
2.2 Thermal data
2.3 Electrical characteristics
Refer to the test circuit, V
S
= 14.4 V; R
L
= 4 , f = 1 kHz, T
amb
= 25 °C; unless otherwise
specified.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
S
DC supply voltage 28 V
V
OP
Operating supply voltage 18 V
V
PEAK
Peak supply voltage (t = 50 ms) 50 V
I
O
Output peak current repetitive (f > 10 Hz) 4.5 A
Output peak current non repetitive 6 A
P
tot
Power dissipation (T
case
= 85 °C) 43 W
T
stg
, T
j
Storage and junction temperature
(1)
1. A suitable heatsink/dissipation system should be used to keep T
j
inside specified limits.
-40 to 150 C
T
amb
Operative ambient temperature range -40 to 105 °C
Table 4. Thermal data
Symbol Parameter Value Unit
R
th j-case
Thermal resistance junction to case Max 1.8 °C/W
Table 5. Electrical characteristics
Symbol Parameter Test condition Min. Typ. Max. Unit
V
S
Supply voltage range - 8 - 18 V
I
q
Total quiescent current - - 60 150 mA
V
OS
Output offset voltage - - 120 mV
I
SB
Standby current V
ST-BY
= 1.5 V - - 100 A
I
SBin
Standby input bias current V
ST-BY
= 5 V - - 10 A
V
SBon
Standby On threshold voltage - - - 1.5 V
V
SBoff
Standby Off threshold voltage - 3.5 - - V
ATT
ST-BY
Standby attenuation - -- 90 - dB
I
M_in
Mute input bias current V
MUTE
= 5 V - - 10 A
