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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
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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
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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
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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
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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
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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