Datasheet

Electrical specifications TDA7491HV
10/41 Doc ID 14242 Rev 6
3 Electrical specifications
3.1 Absolute maximum ratings
3.2 Thermal data
Refer also to Section 7.9: Heatsink requirements on page 38.
3.3 Electrical specifications
Unless otherwise stated, the results in Ta ble 5 below are given for the conditions:
V
CC
=18V, R
L
(load) = 8 Ω, R
OSC
= R3 = 39 kΩ, C8 = 100 nF, f = 1 kHz, G
V
= 20 dB, and
Tam b = 25 ° C.
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
DC supply voltage for pins PVCCA, PVCCB 23 V
Vi
Voltage limits for input pins STBY,MUTE,INNA,INPA,INNB
INPB,GAIN0,GAIN1
-0.3 TO 3.6 V
T
op
Operating temperature -40 to 85 °C
T
j
Junction temperature -40 to 150 °C
T
stg
Storage temperature -40 to 150 °C
Table 4. Thermal data
Symbol Parameter Min Typ Max Unit
R
th j-case
Thermal resistance, junction to case - 2 3
°C/W
R
th j-amb
Thermal resistance, junction to ambient
(mounted on recommended PCB)
(1)
1. FR4 with vias to copper area of 9 cm
2
.
-24-
Table 5. Electrical specifications
Symbol Parameter Condition Min Typ Max Unit
V
CC
Supply voltage - 5 - 18 V
I
q
Total quiescent current - - 26 35 mA
I
qSTBY
Quiescent current in standby - - 2.5 5.0 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 35- A
T
j
Junction temperature at thermal
shutdown
- - 150 - °C
R
i
Input resistance Differential input 54 60 - kΩ