NXP Semiconductors TDA8944J, Техническое описание

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NXP Semiconductors
TDA8944J
2 x 7 W stereo BTL audio amplifier
Product specification Rev. 02 — 14 February 2000 7 of 22
9397 750 06861 © NXP B.V. 2010. All rights reserved.
9. Limiting values
10. Thermal characteristics
11. Static characteristics
[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
(Δ
V
OUT
) divided by the load resistance (R
L
).
[2] The DC output voltage with respect to ground is approximately 0.5V
CC
.
[3]
Δ
V
OUT
=
⎪
V
OUT+
−
V
OUT
−
⎪
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage no signal
−
0.3 +25 V
operating
−
0.3 +18 V
V
I
input voltage
−
0.3 V
CC
+ 0.3 V
I
ORM
repetitive peak output current - 2 A
T
stg
storage temperature non-operating
−
55 +150
°
C
T
amb
operating ambient temperature
−
40 +85
°
C
P
tot
total power dissipation - 18 W
V
CC(sc)
supply voltage to guarantee short-circuit
protection - 15 V
Table 6: Thermal characteristics
Symbol Parameter Conditions Value Unit
R
th(j-a)
thermal resistance from junction to ambient in free air 40 K/W
R
th(j-mb)
thermal resistance from junction to mounting base both channels driven 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
supply voltage operating 6 12 18 V
I
q
quiescent supply current R
L
=
∞
[1]
- 24 36 mA
I
stb
standby supply current V
MODE
= V
CC
- - 10
μ
A
V
O
DC output voltage
[2]
- 6 - V
Δ
V
OUT
[3]
differential output voltage offset - - 200 mV
V
MODE
mode selection input voltage operating mode 0 - 0.5 V
mute mode 3 - V
CC
−
1.5 V
standby mode V
CC
−
0.5 - V
CC
V
I
MODE
mode selection input current 0 < V
MODE
< V
CC
- - 20
μ
A