STMICROELECTRONICS TDA7253

TDA7253
8W AMPLIFIER WITH MUTING
WIDE SUPPLY VOLTAGE RANGE
8W @ VS=26V, RL = 8Ω, THD=10%
MUTE FACILITY (POP FREE) WITH LOW
CONSUMPTION
AC SHORT CIRCUIT PROTECTION
THERMAL
OVERLOAD
PROTECTION
(150°C)
DESCRIPTION
The TDA7253 is class AB audio power amplifier
assembled in the new Clipwatt package.
Clipwatt11
APPLICATION CIRCUIT
+VS
R7 820
=
MUTE
SW
C4
0.1µF
CSVR
100µF
1
9
3
10
2
11
TDA7253
C2
IN
(L)
C5
470µF
C11 1000µF
8
100nF
27K
7
6
CF
4
47µF
R3
1.5K
R4
47
C9
0.1µF
RL
R6
4.7
D94AU130
May 1997
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TDA7253
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Unit
V
VS
Supply Voltage
35
IO
Output Peak Current (repetitive f >20Hz)
2.5
A
IO
Output Peak Current (non repetitive, t = 100µs)
3.5
A
Ptot
Total Power Dissipation (Tcase = 70°C)
25
W
Top
Operating Temperature Range
0 to 70
°C
-40 to 150
°C
Tstg,Tj
Storage & Junction Temperature
PIN CONNECTION (Top view)
11
N.C.
10
N.C.
9
+Vs
8
OUTPUT
7
N.C.
6
GND
5
NON INVERTING INPUT
4
INVERTING INPUT
3
SVR/MUTING
2
N.C.
1
N.C.
D93AU037A
Figure 1: Application Circuit
2/5
Value
TDA7253
THERMAL DATA
Symbol
Rth j-case
Parameter
Thermal resistance junction to case
Value
Unit
3
°C/W
Max
ELECTRICAL CHARACTERISTICS (Refer to the test and application circuit, VS = 26V; RL = 8Ω;
Gv = 30dB; f = 1KHz; Tamb = 25°C unless otherwise specified.)
Symbol
Parameter
Test Condition
VS
Supply Voltage
VO
Quiescent Output Voltage
Iq
Total Quiescent Current
PO
Output Power
d = 10%
d = 1%
PO = 1W
d
Total Harmonic Distortion
RI
Input Resistance
Min.
Typ.
10
8
100
Max.
Unit
32
V
12.5
V
40
mA
10
8
W
W
0.03
%
200
KΩ
fL
Low Frequency Roll-off (-3dB)
40
Hz
fH
High Frequency Roll-off (-3dB)
80
KHz
eN
Total Input Noise Voltage
A Curve; RS = 10KΩ
2
f = 22Hz to 22KHz; RS = 10KΩ
SVR
Supply Voltage Rejection
RS = 10KΩ; f = 100Hz; Vr = 0.5V
Mute Threshold
VTPLAY
Play Threshold
5
Mute Attenuation
80
IqMUTE
dB
0.8
V
V
100
Quiescent Current Mute
Note: to avoid pop-on noise
µV
10
60
VTMUTE
AM
mV
2.5
7
dB
10
mA
CF
≤ 1
CSVR
Figure 1: Output Power vs. Supply Voltage
Figure 2: Quiescent Current vs. Supply Voltage
D94AU131
Iq
(mA)
45
40
35
30
25
20
8
12
16
20
24
28
Vs(V)
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TDA7253
CLIPWATT11 PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
4/5
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
3.10
0.122
B
1.10
0.04
C
0.15
0.006
D
1.50
0.059
E
0.52
0.02
F
0.80
0.03
G
1.70
0.066
G1
17.00
0.66
H1
12.00
0.48
H3
20.00
0.79
L
17.90
0.70
L1
14.40
0.57
L2
11.00
0.43
M
2.54
0.1
M1
2.54
0.1
TDA7253
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGSTHOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
 1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved
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