30 W + 30 W stereo amplifier with mute and standby
Features
■ Wide-range supply voltage (up to ± 35 V ABS
max.)
■ Split supply
■ High output power
■ 30 W + 30 W at THD=10%, R
■ 25 W + 25 W at THD=1%, R
■ No “pop” at turn-on/off
■ Mute (“pop-free”)
■ Standby feature (low I
Q
■ Short-circuit protection
■ Thermal overload protection
Description
= 8 Ω, VS ± 23 V
L
= 8 Ω, VS ± 23 V
L
)
TDA7265B
Multiwatt11 (vertical)
applications such as home entertainment
systems and stereo TV sets.
The device is pin-to-pin compatible with the
TDA7265, TDA7269A and TDA7292.
Table 1. Device summary
The TDA7265B is class-AB dual audio power
amplifier assembled in the Multiwatt package,
especially designed for high-quality sound
Figure 1. Typical application circuit in split supply
15K
1µF
+5V
µP
1µF
1µF
MUTE/
ST-BY
IN (L)
18K15K
GND
IN (R)
D94AU085
5
7
9
11
+
-
-
+
1
1000mF
Order code Package Packing
TDA7265B Multiwatt11 (vertical) Tube
+V
S
1000μF
3
OUT (L)
4
18K
IN- (L)
8
IN- (R)
10
OUT (R)
2
6
-V
S
560Ω
18K
4.7Ω
100nF
100nF
560Ω
4.7Ω
RL (L)
RL (R)
December 2011 Doc ID 022601 Rev 1 1/18
www.st.com
1
Contents TDA7265B
Contents
1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Mute standby function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Stereo configuration circuit and PCB layout . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Application suggestions for stereo configuration . . . . . . . . . . . . . . . . . . . 13
5.3 Single supply circuit configuration and PCB layout . . . . . . . . . . . . . . . . . 14
6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/18 Doc ID 022601 Rev 1
TDA7265B List of tables
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 5. Recommended values of the external components in the TDA7265B demonstration
board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6. Mute, standby truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doc ID 022601 Rev 1 3/18
List of figures TDA7265B
List of figures
Figure 1. Typical application circuit in split supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5. THD vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. Output power vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 7. Quiescent current vs. pin 5 voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 8. Attenuation vs. pin 5 voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 9. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 10. Power dissipation vs. output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 11. Mute/standby thresholds on pin 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 12. Test and application circuit (stereo configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 13. Soldering side (bottom). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 14. Component side (top) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 15. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 16. Typical application circuit in single supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 17. Soldering side (bottom). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 18. Component side (top) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 19. Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 20. Multiwatt 11 (vertical) mechanical data & package dimensions . . . . . . . . . . . . . . . . . . . . . 16
4/18 Doc ID 022601 Rev 1
TDA7265B Pin connections
1 Pin connections
Figure 2. Pin connections (top view)
TAB CONNECTED TO PIN 6
11
10
IN+(1)
IN-(1)
9
8
7
6
5
4
3
2
1
D95AU316
GND
IN-(2)
IN+(2)
-V
S
MUTE/St-By
OUTPUT(2)
+V
S
OUTPUT(1)
-V
S
Doc ID 022601 Rev 1 5/18
Electrical specifications TDA7265B
2 Electrical specifications
2.1 Absolute maximum ratings
Table 2. Absolute maximum ratings
Symbol Description Value Unit
T
V
S
I
O
P
tot
T
op
stg, Tj
DC supply voltage ±35 V
Output peak current (internally limited) 5 A
Power dissipation T
= 70 °C 40 W
case
Operating temperature -20 to 85 °C
Storage and junction temperature -40 to +150 °C
2.2 Thermal data
Table 3. Thermal data
Symbol Parameter Value Unit
R
th j case
Thermal resistance junction-casetyp. 1.5 °C/W
2.3 Electrical characteristics
Refer to the test circuit, VS = ± 23 V; RL = 8 Ω; Rs = 50 Ω; GV = 30 dB; f = 1 kHz;
Tamb = 25 °C, unless otherwise specified.
Table 4. Electrical characteristcs
Symbol Parameter Test condition Min. Typ. Max. Unit
V
Supply range ±8 ±33 V
S
Total quiescent current 50 130 mA
I
q
V
I
Peak
THD Total harmonic distortion R
Input offset voltage –20 +20 mV
OS
I
Non-inverting input bias current 500 nA
b
P
O
Output power
THD = 10%; R
THD = 1%; R
= 8 Ω 30 W
L
= 8 Ω 25 W
L
Output peak current (Internally limited) 3.6 4 A
= 8 Ω, Po = 1 W 0.02 %
L
Crosstalk f = 1 kHz 70 dB
C
T
SR Slew rate 11 V/ms
Gol Open-loop voltage gain 80 dB
Total input noise F = 20 Hz – 22 kHz 4 µV
e
N
Ri Input resistance 20 kΩ
6/18 Doc ID 022601 Rev 1
TDA7265B Electrical specifications
Table 4. Electrical characteristcs (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit
SVR Supply voltage rejection 75 dB
Tj Thermal shutdown 145 °C
Mute function { ref.: +Vs }
VTmute Mute / play threshold -7 -6 -5 V
Am Mute attenuation 75 dB
Standby function { ref.: +Vs }
VTst-by Standby / mute threshold -3.5 -2.5 -1.5 V
Ast-by Standby attenuation 110 dB
I
Quiescent current at standby 8 mA
q
Doc ID 022601 Rev 1 7/18
Typical operating characteristics TDA7265B
k
k
3 Typical operating characteristics
Figure 3. Quiescent current vs. supply
Iq (mA)
Iq (mA)
55
55
55
55
50
50
50
50
45
45
45
45
40
40
40
40
35
35
35
35
30
30
30
30
Figure 5. THD vs. output power Figure 6. Output power vs. supply voltage
THD (%)
10
5
2
1
0.5
voltage
Iq+
Iq+
Iq+
Iq-
Iq-
Iq-
8 10 12 14 16 18 20 22 24 26 2830 32 34
8 10 12 14 16 18 20 22 24 26 2830 32 34
8 10 12 14 16 18 20 22 24 26 2830 32 34
8 10 12 14 16 18 20 22 24 26 2830 32 34
Vs (+/-V)
Vs (+/-V)
Vs (+/-V)
Vs= +/-23V
Rl= 8 Ohm
Figure 4. Frequency response
Ampl (dB)
Ampl (dB)
+5
+5
+4
+4
Vs=+/-23V
Vs=+/-23V
+3
+3
Rl = 8 Ohm
Rl = 8 Ohm
0dB = 1W
0dB = 1W
+2
+2
+1
+1
+0
+0
-1
-1
-2
-2
-3
-3
-4
-4
-5
-5
20 50 100 200 500 1k 2k 5k 10k 20k 50k
20 50 100 200 500 1k 2k 5k 10k 20k 50k
10 200
10 200
Freq(Hz)
Freq(Hz)
Pout(W)
50
45
40
35
30
Rl = 8 Ohm
f = 1Kz
THD=10%
25
0.2
0.1
0.05
f = 1KHz
0.02
0.01
100m 40200m 500m 1 2 5 10 20
f = 15KHz
Pout (W)
20
15
10
THD=1%
5
0
10 12 14 26 28 20 22 24 26 2830
Vs (+/-V)
8/18 Doc ID 022601 Rev 1
TDA7265B Typical operating characteristics
Figure 7. Quiescent current vs. pin 5 voltage Figure 8. Attenuation vs. pin 5 voltage
Attenuation (dB)
Iq (mA)
100
90
80
70
Vs=+/-20V
60
Rl=8Ohm
50
0V = +Vs
Vi = 0
40
30
20
10
0
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0
Vpin # 5 (V)
Figure 9. Crosstalk vs. frequency Figure 10. Power dissipation vs. output power
Crosstalk (dB)
Crosstalk (dB)
-30
-30
-35
-35
Vs=+/- 26V
Vs=+/- 26V
-40
-40
Rl = 8 Ohm
Rl = 8 Ohm
-45
-45
Rs=50 Ohm
Rs=50 Ohm
-50
-50
-55
-55
-60
-60
-65
-65
-70
-70
Left to Right
-75
-75
-80
-80
20 20k50 100 200 500 1k 2k 5k 10k
20 20k50 100 200 500 1k 2k 5k 10k
Left to Right
Frequency (Hz)
Frequency (Hz)
Right to
Right to
Left
Left
Attenuation (dB)
+10
+10
+0
+0
-10
-10
-20
-20
Vs=+/-20V
Vs=+/-20V
-30
-30
Rl= 8 Ohm
Rl= 8 Ohm
-40
-40
f =1KHz
f =1KHz
-50
-50
OdB = 1V
OdB = 1V
-60
-60
0V = +Vs
0V = +Vs
-70
-70
-80
-80
-90
-90
-100
-100
-10 -0-9 -8 -7 -6 -5 -4 -3 -2 -1
-10 -0-9 -8 -7 -6 -5 -4 -3 -2 -1
Vpin #5 (V)
Vpin #5 (V)
Pdiss (W)
40
Rl =8 Ohm
35
f = 1KHz
Vs=+/-24V (A)
30
Vs=+/-20V (B)
25
20
15
A
B
10
5
0
0.1 1 10 100
2xPout (W)
Doc ID 022601 Rev 1 9/18
Mute standby function TDA7265B
4 Mute standby function
Pin 5 (MUTE/St-By) controls the amplifier status using two different thresholds with
reference to +V
● when V
the final stage generators are off
● when V
switched on and the amplifier is in mute mode
● when V
Figure 11. Mute/standby thresholds on pin 5
:
S
is greater than or equal to +VS - 2.5 V, the amplifier is in standby mode and
pin5
is between +VS - 2.5V and +VS 6 V, the final stage current generators are
pin5
is less than +VS - 6 V, the amplifier is in play mode.
pin5
+V
S
(V)
26
t
-V
S
-26
V
IN
(mV)
Vpin5
(V)
V
S
VS-2.5
V
S-
V
-10
S
I
q
(mA)
0
VOUT
(V)
6
OFF
STDBY
MUTE
PLAY STDBY PLAY OFF
D04AU1570
MUTE
MUTE
MUTE
STDBY
10/18 Doc ID 022601 Rev 1
TDA7265B Applications
5 Applications
5.1 Stereo configuration circuit and PCB layout
Figure 12. Test and application circuit (stereo configuration)
+V
S
R2
SW1
ST-BY
R1
DZ
SW2
MUTE
R4
C3
Q1
R3
C1
C2
D94AU087B
MUTE/
ST-BY
IN (L)
GND
IN (R)
Figure 13. Soldering side (bottom)
5
7
9
11
+V
S
3
4+
-
8
10
-
+
1
C7
2
6
-V
S
C6
C4
OUT (L)
R5
IN- (L)
R6
IN- (R)
R8
OUT (R)
R10
C9
R9
C5
R7
C8
RL (L)
RL (R)
Doc ID 022601 Rev 1 11/18
Applications TDA7265B
Figure 14. Component side (top)
Figure 15. Components
12/18 Doc ID 022601 Rev 1
TDA7265B Applications
5.2 Application suggestions for stereo configuration
The recommended values of the external components are those shown in the application
circuit of Figure 12. If different values are used, the following table can be helpful.
Table 5. Recommended values of the external components in the TDA7265B demonstration
board schematic
Component
Recomm.
value
Purpose
R1 10 kΩ Mute circuit Increase of Dz biasing current
R2 15 kΩ Mute circuit V
R3 18 kΩ Mute circuit V
R4 15 kΩ Mute circuit V
R5, R8 18 kΩ
R6, R9 560 Ω Decrease of gain
Closed-loop gain setting
Increase of gain
(1)
R7, R10 4.7 Ω Frequency stability Danger of oscillations Danger of oscillations
C1, C2 1 µF Input DC decoupling Higher low-frequency cutoff
C3 1 µF St-By/Mute time constant Larger on/off time Smaller on/off time
C4, C6 1000 µF Supply voltage bypass Danger of oscillations
C5, C7 0.1 µF Supply voltage bypass Danger of oscillations
C8, C9 0.1 µF Frequency stability
Dz 5.1 V Mute circuit
Q1 BC107 Mute circuit
1. Closed-loop gain has to be ≥ 29 dB
Larger than
recommended value
# 5 shifted downward V
pin
# 5 shifted upward V
pin
# 5 shifted upward V
pin
Smaller than
recommended value
# 5 shifted upward
pin
# 5 shifted downward
pin
# 5 shifted downward
pin
Table 6. Mute, standby truth table
SW1 SW2
B A Standby
B B Standby
AA Mute
AB Play
Doc ID 022601 Rev 1 13/18
Applications TDA7265B
5.3 Single supply circuit configuration and PCB layout
Figure 16. Typical application circuit in single supply
+V
D1 5.1V
S
Q1
BS107
R2
15K
R3
15K
C3 1μF
C4 1μF
MUTE
IN (L)
IN (R)
5
7
9
11
10KC11μF
0
MUTE
R1
PLAY
5V
C2
100μF
Figure 17. Soldering side (bottom)
C5
OUT (L)
IN- (L)
IN- (R)
OUT (R)
1000μF
R4
30K
R5
1K
R6
30K
R7
1K
3
+
-
+
-
1
4
8
2
10
6
GND
C6
0.1μF
C9 470μF
R8
4.7Ω
C7
0.1μF
C10 470μF
R9
4.7Ω
C8
0.1μF
D96AU444A
OUT
(L)
OUT
(R)
14/18 Doc ID 022601 Rev 1
TDA7265B Applications
Figure 18. Component side (top)
Figure 19. Components
Doc ID 022601 Rev 1 15/18
Package mechanical data TDA7265B
6 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
Figure 20. Multiwatt 11 (vertical) mechanical data & package dimensions
DIM.
A50.197
B 2.65 0.1 04
C 1.6 0.063
D 1 0.039
E 0.49 0.55 0.019 0.022
F 0.88 0.95 0.035 0.037
G 1.45 1.7 1.95 0.057 0.067 0.077
G1 16.75 17 17.25 0.659 0.669 0.679
H1 19.6 0.772
H2 20.2 0.795
L 21.9 22.2 22.5 0.862 0.874 0.8 86
L1 21.7 22.1 22.5 0.854 0.87 0.886
L2 17.4 18.1 0.685 0.713
L3 17.25 17.5 17.75 0.679 0.689 0.699
L4 10.3 10.7 10.9 0.406 0.421 0.429
L7 2.65 2.9 0.104 0.1 14
M 4.25 4.55 4.85 0.167 0.179 0.191
M1 4.73 5.08 5.43 0.186 0.200 0.214
S 1.9 2.6 0.075 0.102
S1 1.9 2.6 0.075 0.102
Dia1 3.65 3.85 0.144 0.152
mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
OUTLINE AND
MECHANICAL DATA
Multiwatt11 (Vertical)
16/18 Doc ID 022601 Rev 1
0016035 H
TDA7265B Revision history
7 Revision history
Table 7. Document revision history
Date Revision Changes
19-Dec-2011 1 Initial release.
Doc ID 022601 Rev 1 17/18
TDA7265B
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY TWO AUTHORIZED ST REPRESENTATIVES, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2011 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
18/18 Doc ID 022601 Rev 1
Loading...