Philips TDA8943SF - Manual (Page 5)

Philips Semiconductors
TDA8943SF
7 W mono BTL audio amplifier
Preliminary specification 14 April 1999 5 of 12
9397 750 04877 © Philips Electronics N.V. 1999. All rights reserved.
Operating — In this mode the amplifier is operating normally. The operating mode is
activated at V
MODE
< 0.5 V.
9. Limiting values
[1] Applies to all functional modes.
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
(∆ 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 −
|
.
Table 5: Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage operating
−
0.3 +18 V
no signal [1] −
0.3 +25 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 - <tbf> W
V
CC(sc)
supply voltage to guarantee
short-circuit protection - <tbf> V
Table 6: Thermal characteristics
Symbol Parameter Conditions Value Unit
R
th(j-a)
thermal resistance from junction to ambient in free air 65 K/W
R
th(j-c)
thermal resistance from junction to case in free air 10 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 3 ; 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] - 15 22 mA
I
stb
standby supply current V
MODE
= V
CC
- - 10
µ
A
V
O
DC output voltage [2] - 6 - V
∆
V
OUT
[3] differential output voltage offset - - 200 mV
V
MODE
mode selection input voltage operating mode 0 - 0.5 V
mute mode 2.5 - 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