Philips Semiconductors
Product specification
Stereo BTL audio output amplifier with DC
volume control
TDA7053A
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VP
PARAMETER
supply voltage
CONDITIONS
MIN.
MAX.
18
UNIT
−
−
−
V
A
A
IORM
IOSM
Ptot
repetitive peak output current
non-repetitive peak output current
total power dissipation
TDA7053A
1.25
1.5
T
amb ≤ 25 °C
−
−
−
−
2.5
1.32
1
W
W
hr
V
TDA7053AT
tsc
short-circuit time
Vn
input voltage pins 2, 4, 6 and 8
operating ambient temperature
storage temperature
5
Tamb
Tstg
Tvj
−40
−55
−
+85
+150
+150
°C
°C
°C
virtual junction temperature
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
VALUE
UNIT
Rth j-a
thermal resistance from junction to ambient in free air
TDA7053A
50
95
K/W
K/W
TDA7053AT
Power dissipation
TDA7053A:
Assume VP = 6 V and RL = 8 Ω.
The maximum sine wave dissipation is 2 × 0.9 W = 1.8 W.
The Rth j-a of the package is 50 K/W therefore Tamb(max) = 150 − (50 × 1.8) = 60 °C.
TDA7053AT:
Assume VP = 6 V and RL = 16 Ω.
The maximum sine wave dissipation is 2 × 0.46 W = 0.92 W.
The Rth j-a of the package is 95 K/W therefore Tamb(max) = 150 − (95 × 0.92) = 62.6 °C.
1997 Jul 15
5
NXP [ NXP ]
