DATA SHEET
Product specification
File under Integrated Circuits, IC01
February 1994
INTEGRATED CIRCUITS
TDA7053
2 x 1 W portable/mains-fed stereo
power amplifier
February 1994
2
Philips Semiconductors
Product specification
2 x 1 W portable/mains-fed stereo
power amplifier
TDA7053
GENERAL DESCRIPTION
The TDA7053 is an integrated class-B stereo power amplifier in a 16-lead dual-in-line (DIL) plastic package. The device,
consisting of two BTL amplifiers, is primarily developed for portable audio applications but may also be used in mains-fed
applications.
Features
No external components
No switch-ON/OFF clicks
Good overall stability
Low power consumption
Short-circuit-proof.
QUICK REFERENCE DATA
PACKAGE OUTLINE
16-lead DIL; plastic (SOT38); SOT38-1; 1996 July 24.
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply voltage range
V
P
3
6
18
V
Total quiescent current
R
L
=
I
tot
-
9
16
mA
Output power
R
L
= 8
;
V
P
= 6 V
P
O
-
1.2
-
W
Internal voltage gain
G
v
38
39
40
dB
Total harmonic distortion
P
O
= 0.1 W
THD
-
0.2
1.0
%
February 1994
3
Philips Semiconductors
Product specification
2 x 1 W portable/mains-fed stereo
power amplifier
TDA7053
Fig.1 Block diagram.
February 1994
4
Philips Semiconductors
Product specification
2 x 1 W portable/mains-fed stereo
power amplifier
TDA7053
PINNING
Note
The information contained within the parentheses refer to the polarity of the loudspeaker terminal to which the output
must be connected.
FUNCTIONAL DESCRIPTION
The TDA7053 is a stereo output amplifier, with an internal gain of 39 dB, which is primarily for use in portable audio
applications but may also be used in mains-fed applications. The current trends in portable audio application design is
to reduce the number of batteries which results in a reduction of output power when using conventional output stages.
The TDA7053 overcomes this problem by using the Bridge-Tied-Load (BTL) principle and is capable of delivering 1.2 W
into an 8
load (V
P
= 6 V). The load can be short-circuited under all input conditions.
1.
SGND1
signal ground 1
9. OUT2A
output 2 (positive)
2.
IN1
input 1
10. GND2
power ground 2
3.
n.c.
not connected
11.
n.c.
not connected
4.
n.c.
not connected
12. OUT2B
output 2 (negative)
5.
V
P
supply voltage
13. OUT1B
output 1 (negative)
6.
IN2
input 2
14. GND1
power ground 1
7.
SGND2
signal ground 2
15. n.c.
not connected
8.
n.c.
not connected
16. OUT1A
output 1 (positive)
February 1994
5
Philips Semiconductors
Product specification
2 x 1 W portable/mains-fed stereo
power amplifier
TDA7053
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
THERMAL RESISTANCE
Power dissipation
Assuming: V
P
= 6 V and R
L
= 8
:
The maximum sinewave dissipation is 1.8 W, therefore T
amb(max.)
= 150
-
(50 x 1.8) = 60
C.
PARAMETER
CONDITIONS
SYMBOL
MIN.
MAX.
UNIT
Supply voltage
V
P
-
18
V
Non-repetitive peak output current
I
OSM
-
1.5
A
Total power dissipation
P
tot
see Fig.2
Crystal temperature
T
c
-
+
150
C
Storage temperature range
T
stg
-
55
+
150
C
From junction to ambient
R
th j-a
50
K/W
Fig.2 Power derating curve.
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