Datasheet

UNISONIC TECHNOLOGIES CO., LTD
TDA7265
LINEAR INTEGRATED CIRCUIT
25W+25W STEREO
AMPLIFIER WITH MUTE &
STAND-BY

DESCRIPTION
The UTC TDA7265 is a stereo 25+25W class AB Dual Audio
Power amplifier with mute and ST-BY control. This IC provides
high output power of 25 watts per channel (at VCC=±20V, f=1KHz,
THD=10%, RL = 8 Ω). It has low IQ at stand-by mode and no POP
at turn ON or OFF.

FEATURES
* High output power: POUT =25 W/channel (Typ.)
VCC= ±20V, RL = 8Ω, f =1KHz, THD = 10%
* Operation supply voltage range (TA = 25°C)
VCC(OPR) = ±5~±25V (RL = 8 Ω)
VCC(OPR) = ±5~±18V (RL = 4 Ω)
* Split supply
* Built in overload protection circuit.
* Built in thermal shut down protector circuit.
* Built in audio muting circuit (POP free)
* Built in standby circuit.

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
TDA7265L-J11-A-T
TDA7265G-J11-A-T
Package
Packing
HZIP-11A
Tube
TDA7265L-J11-A-T
(1) Packing Type
(1) T: Tube
(2) Package Type
(2) J11-A: HZIP-11A
(3) Lead Free
(3) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
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TDA7265

LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
11
IN+(R)
10
9
IN-(R)
GND
IN-(L)
8
IN+(L)
-VCC
7
6
2
MUTE
OUT(L)
+VCC
OUT(R)
1
-VCC
5
4
3

PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
PIN NAME
-VCC
OUT(R)
+VCC
OUT(L)
MUTE
-VCC
IN+(L)
IN-(L)
GND
IN-(R)
IN+(R)
DESCRIPTION
Negative supply
Output(right)
Positive Supply voltage
Output(left)
Mute/standby switch input
Negative supply
non-inverting input(left)
inverting input(left)
Ground
inverting input(right)
non-inverting input(right)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
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
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
DC Supply Voltage
VCC
±25
V
Output Power Current (internally limited)
IOUT
4.5
A
Power Dissipation (TA=70°C)
PD
30
W
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-20~85
°C
Storage Temperature
TSTG
-40 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Junction to Case

SYMBOL
θJC
RATING
2
UNIT
°C/W
ELECTRICAL CHARACTERISTICS
(VCC =±20V, RL =8Ω, RS =50Ω, GV =30dB, f =1KHz, TA =25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
Supply Voltage Range
VCC
Total Quiescent Current
IQ
INPUT SECTION
Input Offset Voltage
VI(OFF)
Bias Current
IBIAS
Input Resistance
RIN
OUTPUT SECTION
VCC=±20V, RL= 8Ω
THD=10%
VCC=±16V, RL= 4Ω
Output Power
POUT
VCC= ±20V, RL= 8Ω
THD = 1%
VCC=±16V, RL= 4Ω
RL= 8Ω, POUT= 1W, f = 1KHz
RL= 8Ω, POUT=0.1~ 15W,
f = 100Hz ~ 15KHz
Total Harmonic Distortion
THD
RL= 4Ω, POUT= 1W, f = 1KHz
RL= 4Ω, VCC= ±16V, POUT=0.1 ~ 12W,
f =100Hz ~ 15KHz
f = 1KHz
Cross Talk
CT
f = 10KHz
Slew Rate
SR
Open Loop Voltage Gain
GVO
A Curve
Total Output Noise
eN
f = 20Hz to 22KHz
Supply Voltage Rejection
SVR
f = 100Hz, VR= 0.5V
(each channel)
UNISONIC TECHNOLOGIES CO., LTD
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MIN
±5
TYP
80
-20
15
20
MAX UNIT
±25
V
130 mA
500
20
20
mV
nA
KΩ
25
25
20
20
0.01
W
W
W
W
%
0.7
0.02
70
60
10
80
3
4
60
%
%
1
%
8
dB
dB
V/μs
dB
μV
μV
dB
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LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
THERMAL PROTECTION
Thermal Shut-down Junction
Temperature
MUTE FUNCTION
Mute /Play Threshold
Mute Attenuation
STAND-BY FUNCTIONS
Stand-by Mute threshold
Stand-by Attenuation
Quiescent Current ( Stand-by)
SYMBOL
MIN
TJ
TYP MAX UNIT
145
°C
VTMUTE
AMUTE
-7
60
-6
70
-5
V
dB
VTST-BY
AST-BY
IQ(ST-BY)
-3.5
-2.5
110
3
-1.5
V
dB
mA
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TEST CONDITION
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LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
Typical Application Circuit
+VCC
D1
10KΩ
5.1V
15KΩ
1μF
1000μF
3
7
OUT (L)
IN (L)
PLAY
5V
0
MUTE
470μF
4
30KΩ
1μF
5
IN- (L)
MUTE
Q1
9013
0.1μF
4.7Ω
OUT
(L)
0.1μF
8
1KΩ
IN- (R)
15KΩ
11
470μF
2
IN (R)
30KΩ
1μF
OUT (R)
10
1KΩ
1
6
4.7Ω
0.1μF
OUT
(R)
9
100μF
Single Supply Application
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www.unisonic.com.tw
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LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT(Cont.)
Note: Closed loop gain has to be≥25dB
Test and Application Circuit (Stereo Configuration)
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www.unisonic.com.tw
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LINEAR INTEGRATED CIRCUIT
MUTE STAND-BY FUNCTION
The pin 5 (MUTE/STAND-BY) controls the amplifier status by two different thresholds, referred to +VCC.
VPIN5
Amplifier Status
+VCC>VPIN5≥+VCC -2.5V
Stand-by Mode
+VCC -2.5V>VPIN5>+VCC -6V
Mute Mode
VPIN5≤+VCC -6V
Play Mode
VPIN5(V)
VCC
VCC-2.5
VCC-6
VCC-10
IQ(mA)
0
VOUT(V)
PLAY
ST-BY
MUTE
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ST-BY
MUTE
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CH1: 10V/div
CH2: 5V/div
CH2: 10V/div
CH1: 5V/div
CH1: 10V/div
TYPICAL CHARACTERISTICS
CH2: 10V/div

LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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