TDA8944J Datasheet, PDF (7/21 Pages) NXP Semiconductors – 2 x 7 W stereo Bridge Tied Load BTL audio amplifier

Philips Semiconductors
TDA8944J
2 x 7 W stereo BTL audio amplifier
9. Limiting values
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
V_CC
supply voltage
no signal
operating
V_I
I_ORM
T_stg
T_amb
P_tot
V_CC(sc)
input voltage
repetitive peak output current
storage temperature
non-operating
operating ambient temperature
total power dissipation
supply voltage to guarantee short-circuit
protection
10. Thermal characteristics
Min
Max
Unit
−0.3
+25
V
−0.3
+18
V
−0.3
-
V_CC + 0.3
V
2
A
−55
+150
°C
−40
+85
°C
-
18
W
-
15
V
Table 6: Thermal characteristics
Symbol
Parameter
Conditions
R_th(j-a)
R_th(j-mb)
thermal resistance from junction to ambient
in free air
thermal resistance from junction to mounting base both channels driven
11. Static characteristics
Value Unit
40
K/W
6.9
K/W
Table 7: Static characteristics
V_CC = 12 V; T_amb = 25 °C; R_L = 8 Ω; V_MODE = 0 V; V_i = 0 V; measured in test circuit Figure 14; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V_CC
I_q
I_stb
V_O
∆V_OUT ^[3]
supply voltage
quiescent supply current
standby supply current
DC output voltage
differential output voltage offset
operating
R_L = ∞
V_MODE = V_CC
6
[1] _-
-
[2] _-
-
12
18
V
24
36
mA
-
10
µA
6
-
V
-
200
mV
V_MODE
I_MODE
mode selection input voltage
mode selection input current
operating mode
mute mode
standby mode
0 < V_MODE < V_CC
0
-
3
-
V_CC − 0.5 -
-
-
0.5
V
V_CC − 1.5 V
V_CC
V
20
µA
[1] With a load connected at the outputs the quiescent current will increase, the maximum of this increase being equal to the differential
output voltage offset (∆V_OUT) divided by the load resistance (R_L).
[2] The DC output voltage with respect to ground is approximately 0.5V_CC.
[3] ∆V_OUT = V_OUT+ − V_OUT− 
9397 750 06861
Product specification
Rev. 02 — 14 February 2000
© Philips Electronics N.V. 2000. All rights reserved.
7 of 21