SGS Thomson Microelectronics TDA7253 Datasheet

WIDESUPPLYVOLTAGERANGE
8W @ V

=26V,RL=8Ω, THD=10%

S

MUTE FACILITY (POP FREE) WITH LOW
CONSUMPTION

AC SHORT CIRCUIT PROTECTION
THERMAL OVERLOAD PROTECTION

(150°C)

TDA7253

8W AMPLIFIERWITH MUTING

DESCRIPTION

The TDA7253 is class AB audio power amplifier
assembled in thenew Clipwatt package.

APPLICATIONCIRCUIT

R7 820

=

MUTE

SW

(L)

IN

CSVR

100µF

C2

100nF

3

1

11

TDA7253

7

27K

6

+V

9

S

10

2

8

4

D94AU130

Clipwatt11

C4

0.1µF

CF

47µF R4

R3

1.5K

47

C5

470µF

C11 1000µF

C9

0.1µF

R6

4.7

RL

May 1997

1/5

TDA7253

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

Supply Voltage 35 V
Output Peak Current (repetitive f >20Hz) 2.5 A
Output Peak Current (nonrepetitive, t = 100µs) 3.5 A
Total PowerDissipation (T

=70°C) 25 W

case

Operating Temperature Range 0 to 70
Storage & Junction Temperature -40 to 150 °C

T

V

I

O

I

O

P
T

stg,Tj

S

tot
op

C

°

PIN CONNECTION

Figure 1:

ApplicationCircuit

(Topview)

11
10

9
8
7
6
5
4
3
2
1

N.C.
N.C.
+Vs
OUTPUT
N.C.
GND
NON INVERTING INPUT
INVERTING INPUT
SVR/MUTING
N.C.
N.C.

D93AU037A

2/5

THERMAL DATA

Symbol Parameter Value Unit

R

th j-case

Thermal resistancejunction to case Max 3 °C/W

TDA7253

ELECTRICALCHARACTERISTICS (Refer to the test and applicationcircuit, VS= 26V; RL=8

Gv= 30dB;f = 1KHz; T

=25°C unlessotherwise specified.)

amb

Ω;

Symbol Parameter Test Condition Min. Typ. Max. Unit

V

S

V

O

I

q

P

O

d Total Harmonic Distortion P

R

f

L

f

H

N Total Input Noise Voltage A Curve; RS = 10KΩ 2mV

e

SVR Supply Voltage Rejection R

VT

MUTE

VT

PLAY

A

M

I

qMUTE

Note: to avoid pop-on noise

Supply Voltage 10 32 V
Quiescent Output Voltage 12.5 V
Total Quiescent Current 40 mA
Output Power d = 10%

d=1%

= 1W 0.03 %

O

Input Resistance 100 200 K

I

810

8

Low Frequency Roll-off(-3dB) 40 Hz
High Frequency Roll-off (-3dB) 80 KHz

f = 22Hzto 22KHz; R

= 10KΩ; f= 100Hz; Vr= 0.5V 60 dB

S

= 10K

S

Ω

2.5 10

Mute Threshold 0.8 V
Play Threshold 5 V
Mute Attenuation 80 100 dB
Quiescent Current Mute 7 10 mA

C

F

≤ 1

C

SVR

W
W

Ω

V

µ

Figure 1:

Output Power vs. SupplyVoltage

Figure2:

Iq

(mA)

45

40

35

30

25

20

8 12 16 20 24 28 Vs(V)

QuiescentCurrent vs. Supply Voltage

D94AU131

3/5

TDA7253

CLIPWATT11PACKAGE MECHANICAL DATA

DIM.

MIN. TYP. 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

mm inch

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TDA7253

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibilityfor the
consequences of use of such information norfor any infringement of patents or other rights ofthird parties which may result from its use.No
license is granted by implication or otherwise under any patent or patent rightsof 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 ofSGS-THOMSON Microelectronics.

 1997SGS-THOMSON Microelectronics – Printed inItaly– All RightsReserved

SGS-THOMSON Microelectronics GROUP OF COMPANIES

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