Philips TDA7052AT - Manual (Page 5)

July 1994 5
Philips Semiconductors Product specification
1 W BTL mono audio amplifier with DC
volume control
TDA7052A/AT
THERMAL RESISTANCE
Notes to the thermal resistance
TDA7052A: V
P
= 6 V; R
L
= 8
Ω
. The maximum sine-wave dissipation is 0.9 W.
Therefore T
amb(max)
= 150
−
100
×
0.9 = 60
°
C.
TDA7052AT: V
P
= 6 V; R
L
= 16
Ω
. The maximum sine-wave dissipation is 0.46 W.
Therefore T
amb(max)
= 150
−
155
×
0.46 = 78
°
C.
SYMBOL PARAMETER THERMAL RESISTANCE
R
th j-a
from junction to ambient in free air
TDA7052A 100 K/W
TDA7052AT 155 K/W