The TDA7261 is class AB Audio power amplifier
assembled in the Multiwatt package, specially de-
Figure 1: Typical Application Circuit
=8Ω,VS= +20V
L
Q)
TDA7261
Multiwatt 8
ORDERING NUMBER: TDA7261
signed for high quality sound application in mono
TV chassis.
+5V
February 1997
µP
15K1µF
1µF
MUTE/
ST-BY
18K15K
D94AU088
IN
GND
+V
S
OUT
1000µF
4.7Ω
100nF
RL
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+V
S
4
6
-
7
1000µF
2
3+
5
-V
S
TDA7261
ABSOLUTE MAXIMUM RATINGS
SymbolParameterValueUnit
V
I
O
P
tot
T
stg,Tj
PIN CONNECTION(Topview)
DC Supply Voltage50V
S
Output PeakCurrent (internally limited)4.5A
Power Dissipation T
Storage and Junction Temperature-40 to +150°C
=70°C30W
case
8N.C.
7
6
5
4
3
2
1
GND
IN
-V
S
MUTE/ST-BY
OUTPUT
+V
S
N.C.
Tab connected to pin 5
D94AU090
THERMAL DATA
SymbolDescriptionValueUnit
R
th j-case
Thermal Resistance Junction-caseMax2.5°C/W
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TDA7261
ELECTRICALCHARACTERISTICS (Referto the test circuit,VS+ 20V; RL=8Ω;Rs=50Ω;
f = 1KHz; T
SymbolParameterTest ConditionMin.Typ.Max.Unit
V
S
I
q
P
O
P
O
THDTotal Harmonic DistortionR
SRSlew Rate10V/µs
G
V
∆G
V
e
N
R
i
SVRSupply Voltage Rejectionfr = 100Hz; Vripple = 0.5V
T
j
MUTE FUNCTION [ref: +V
VT
MUTE
A
M
STAND-BY FUNCTION [ref: +V
VT
ST-BY
A
ST-BY
I
q ST-BY
Note :
(*) FULL POWER up to.V
MUSICPOWER is themaximal powerwhich theamplifier is capableof producing across therated load resistance(regardless of non linearity)
1 sec after the application of a sinusoidal input signal of frequency 1KHz.
=25°C, unlessotherwise specified.)
amb
Supply Range+5+22.5V
Total Quiescent Current30mA
Music Output Power (*)THD = 10%; RL=8Ω ;
V
+ 28.5V;
S
32W
Output PowerTHD = 10%
R
=8Ω ;
L
V
+ 16V; RL=4
S
Ω
2025
25
THD = 1%
R
=8Ω ;
L
V
+ 16V; RL=4
S
=8Ω ;PO= 1W; f= 1KHz0.02%
L
=8Ω ;
R
L
P
= 0.1 to 15W;
O
Ω
20
20
0.5%
f = 100Hz to 15KHz
R
=4Ω;PO= 1W; f =1KHz0.03%
L
=4Ω ;VS+ 16V;
R
L
P
= 0.1 to 12W;
O
1%
f = 100Hz to 15KHz
Closed Loop Voltage Gain293031dB
Voltage Gain Matching0.2dB
Total Input NoiseA Curve
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 patentor 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 of SGS-THOMSON Microelectronics.
Australia - Brazil - Canada - China - France - Germany - HongKong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
1997 SGS-THOMSON Microelectronics – Printed in Italy – All RightsReserved
Singapore - Spain - Sweden - Switzerland- Taiwan - Thailand - United Kingdom - U.S.A.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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