SGS Thomson Microelectronics TDA7265 Datasheet
25 +25W STEREO AMPLIFIER WITH MUTE & ST-BY
WIDE SUPPLY VOLTAGE RANGE (UP TO
±25V ABS MAX.)
SPLIT SUPPLY
HIGHOUTPUTPOWER
25 +25W @ THD =10%, R
NO POPAT TURN-ON/OFF
MUTE(POP FREE)
STAND-BY FEATURE (LOW I
SHORTCIRCUIT PROTECTION
THERMALOVERLOADPROTECTION
DESCRIPTION
The TDA7265 is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application
as Hi-Fi music centers andstereo TV sets.
=8Ω,VS= +20V
L
)
q
TDA7265
Multiwatt11
ORDERING NUMBER: TDA7265
Figure 1: TypicalApplication Circuit
+5V
15K 1µF
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
GND
IN (R)
D94AU085
+V
S
1000µF
5
7
-
9
11
-
+
1
1000µF
3
6
-V
S
4+
OUT (L)
18K
IN- (L)8
10 IN- (R)
2
OUT (R)
560Ω
18K
4.7Ω
100nF
4.7Ω
100nF
560Ω
RL (L)
RL (R)
July 1998
1/11
TDA7265
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
O
P
tot
T
op
T
stg,Tj
PIN CONNECTION (Topview)
DC Supply Voltage ±25 V
S
Output Peak Current (internally limited) 4.5 A
Power Dissipation T
=70°C30W
case
Operating Temperature -20 to 85 °C
Storage and Junction Temperature -40to +150 °C
TAB CONNECTED TO PIN 6
11
10
9
8
7
6
5
4
3
2
1
D95AU316
IN+(1)
IN-(1)
GND
IN-(2)
IN+(2)
-V
S
MUTE
OUTPUT(2)
+V
S
OUTPUT(1)
-V
S
THERMAL DATA
Symbol Description Value Unit
R
th j-case
Thermal Resistance Junction-case Max 2 °C/W
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TDA7265
ELECTRICALCHARACTERISTICS (Refer to the test circuit, VS= + 20V; RL=8Ω;RS=50Ω;
= 30dB;f = 1KHz; T
G
V
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
S
I
q
V
OS
I
b
P
O
P
O
Supply Range +5 +25 V
Total Quiescent Current 80 130 mA
Input Offset Voltage –20 +20 mV
Non Inverting Input BiasCurrent 500 nA
Music Output Power (*) THD = 10%; RL=8Ω;
Output Power THD = 10%
THD Total Harmonic Distortion R
C
T
Cross Talk f = 1KHz
SR Slew Rate 10 V/µs
G
OL
e
N
R
Open Loop Voltage Gain 80 dB
Total Input Noise A Curve
Input Resistance 15 20 K
i
SVR Supply Voltage Rejection
(each channel)
T
j
Thermal Shut-down
Junction Temperature
MUTE FUNCTION [ref: +V
VT
MUTE
A
M
Mute / Play Threshold -7 -6 -5 V
Mute Attenuation 60 70 dB
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 the amplifieris capable ofproducing across therated load resistance (regardless of nonlinearity)
Stand-by / Mute Threshold -3.5 -2.5 -1.5 V
Stand-by Attenuation 110 dB
Quiescent Current @ Stand-by 3 mA
1 sec after theapplication of a sinusoidalinputsignal offrequency 1K Hz.
=25°C, unless otherwise specified.)
amb
V
= + 22.5V
S
R
=8Ω ;
L
V
+ 16V; RL=4
S
THD = 1%
R
=8Ω ;
L
V
+ 16V; RL=4
S
=8Ω ;PO= 1W; f = 1KHz 0.01 %
L
=8Ω ;
R
L
P
= 0.1 to 15W;
O
f = 100Hzto 15KHz
R
=4Ω;PO= 1W; f = 1KHz 0.02 %
L
=4Ω ;VS+ 16V;
R
L
P
= 0.1 to 12W;
O
f = 100Hzto 15KHz
f = 10KHz
f = 20Hz to 22KHz
fr = 100Hz Vr = 0.5V 60 dB
S]
S]
=±22.5V with RL=8Ωand VS= ±16V with RL=4Ω
S
Ω
Ω
32 W
20 25
25
20
20
70
60
145 °C
0.7 %
1%
3
48
W
W
W
W
dB
dB
µV
µV
Ω
3/11
TDA7265
Figure 2: QuiescentCurrent vs. Supply Voltage
Figure 4: OutputPower vs. SupplyVoltage
Figure3: FrequencyResponse
Figure5: T.H.D.vs. Output Power
Figure 6: OutputPower vs. SupplyVoltage Figure7: T.H.D.vs. Output Power
4/11
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