Heatsink design example, D.c. characteristics – Philips TDA1510AQ User Manual
Page 5
January 1992
5
Philips Semiconductors
Product specification
24 W BTL or 2 x 12 W stereo car radio
power amplifier
TDA1510AQ
HEATSINK DESIGN EXAMPLE
The derating of the encapsulation requires the following external heatsink (for sine-wave drive):
(R
th j-mb
) = 3,5 K/W
24 W BTL (4
Ω
) or 2
×
12 W stereo (2
Ω
); maximum sine-wave dissipation = 12 W;
T
amb
= 65
°
C (maximum):
2
×
7 W stereo (4
Ω
); maximum sine-wave dissipation = 6 W; T
amb
= 65
°
C (maximum):
D.C. CHARACTERISTICS
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage range
V
P
6,0
14,4
18,0
V
Repetitive peak output current
I
ORM
−
−
4,0
A
Total quiescent current
I
tot
−
75
120
mA
Stand-by current
I
sb
−
−
2
mA
Switch-on current
V
11
≤
V
10
; note 1
I
so
0,15
0,35
0,80
mA
R
th h-a
150
65
–
12
----------------------
3,5
3,5 K/W
=
–
=
R
th h-a
150
65
–
12
----------------------
3,5
10,5 K/W
=
–
=