TDA7295 STMicroelectronics, TDA7295 Datasheet

IC AMP AUDIO 80W AB MULTIWATT15

TDA7295

Manufacturer Part Number
TDA7295
Description
IC AMP AUDIO 80W AB MULTIWATT15
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TDA7295

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
80W x 1 @ 8 Ohm
Voltage - Supply
±10 V ~ 40 V
Features
Depop, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Amplifier Class
AB
No. Of Channels
1
Output Power
80W
Supply Voltage Range
± 10V To ± 40V
Thd + N
0.005% @ 5W, 8ohm, VS = ± 30V
Load Impedance
8ohm
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-3965-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7295
Manufacturer:
NXP
Quantity:
2 000
Part Number:
TDA7295
Manufacturer:
ST
0
Part Number:
TDA7295
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7295S
Manufacturer:
ST
0
Part Number:
TDA7295S
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7295SA
Manufacturer:
ST
0
Part Number:
TDA7295V
Manufacturer:
ST
0
April 2003
DESCRIPTION
The TDA7295 is a monolithic integrated circuit in
Multiwatt15 package, intended for use as audio
class AB amplifier in Hi-Fi field applications
(Home Stereo, self powered loudspeakers, Top-
class TV). Thanks to the wide voltage range and
Figure 1: Typical Application and Test Circuit
VSTBY
VERY HIGH OPERATING VOLTAGE RANGE
( 40V)
DMOS POWER STAGE
HIGH OUTPUT POWER (UP TO 80W MUSIC
POWER)
MUTING/STAND-BY FUNCTIONS
NO SWITCH ON/OFF NOISE
NO BOUCHEROT CELLS
VERY LOW DISTORTION
VERY LOW NOISE
SHORT CIRCUIT PROTECTION
THERMAL SHUTDOWN
VM
80V - 80W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
Note: The Boucherot cell R6, C10, normally not necessary for a stable operation it could
22 F
®
C2
R1 22K
C3 10 F
be needed in presence of particular load impedances at V
R4 22K
C1 470nF
R5 10K
680
R2
IN+MUTE
MUTE
STBY
IN+
IN-
C4 10 F
R3 22K
2
3
4
10
9
MUTE
STBY
1
STBY-GND
C7 100nF
-
+
to the high out current capability it is able to sup-
ply the highest power into both 4
even in presence of poor supply regulation, with
high Supply Voltage Rejection.
The built in muting function with turn on delay
simplifies the remote operation avoiding switching
on-off noises.
+Vs
7
8
-Vs
C9 100nF
SHUTDOWN
THERMAL
S
<±25V.
MULTIPOWER BCD TECHNOLOGY
ORDERING NUMBER: TDA7295
-Vs
+Vs
15
-PWVs
PROTECTION
+PWVs
13
Multiwatt 15
S/C
C6 1000 F
C8 1000 F
14
6
TDA7295
22 F
OUT
BOOT-
STRAP
C5
D93AU011
and 8
100nF
2.7
C10
loads
R6
1/13

Related parts for TDA7295

TDA7295 Summary of contents

Page 1

... VERY LOW DISTORTION VERY LOW NOISE SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN DESCRIPTION The TDA7295 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Top- class TV). Thanks to the wide voltage range and ...

Page 2

... TDA7295 PIN CONNECTION (Top view) BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage S I Output Peak Current O P Power Dissipation T tot T Operating Ambient Temperature Range Storage and Junction Temperature stg j 2/13 Parameter = 70 C case Value Unit 150 C ...

Page 3

... 22V 5W 1kHz 0.1 to 30W 20Hz to 20kHz curve f = 20Hz to 20kHz 100Hz 0.5Vrms ripple or GND) Value Max 1.5 = 30V 30dB Min. Typ. Max 500 +10 +100 0.005 0.1 0.01 0 20Hz to 20kHz 100 60 75 145 1.5 3 1.5 3 TDA7295 Unit C/W Unit 3/13 ...

Page 4

... TDA7295 Figure 2: P.C.B. and components layout of the circuit of figure 1. (1:1 scale) Note: The Stand-by and Mute functions can be referred either to GND or -VS. On the P.C.B. is possible to set both the configuration through the jumper J1. 4/13 ...

Page 5

... SMALLER MUTE ON/OFF TIME ON/OFF TIME HIGHER LOW FREQUENCY CUTOFF HIGHER LOW FREQUENCY CUTOFF LARGER MUTE SMALLER MUTE ON/OFF TIME ON/OFF TIME LARGER ST-BY SMALLER ST-BY ON/OFF TIME ON/OFF TIME; POP NOISE SIGNAL DEGRADATION AT LOW FREQUENCY DANGER OF OSCILLATION DANGER OF OSCILLATION TDA7295 5/13 ...

Page 6

... TDA7295 TYPICAL CHARACTERISTICS (Application Circuit of fig 1 unless otherwise specified) Figure 3: Output Power vs. Supply Voltage. Figure 5: Output Power vs. Supply Voltage Figure 7: Distortion vs. Frequency 6/13 Figure 4: Distortion vs. Output Power Figure 6: Distortion vs. Output Power Figure 8: Distortion vs. Frequency ...

Page 7

... TYPICAL CHARACTERISTICS (continued) Figure 9: Quiescent Current vs. Supply Voltage Figure 11: Mute Attenuation vs. V Figure 13: Power Dissipation vs. Output Power Figure 10: Supply Voltage Rejection vs. Frequency Figure 12: St-by Attenuation vs. V pin10 Figure 14: Power Dissipation vs. Output Power TDA7295 pin9 7/13 ...

Page 8

... The solution shown as a principle schematic by Fig 15 represents the DMOS unity-gain output buffer of the TDA7295. This large-signal, high-power buffer must be ca- pable of handling extremely high current and volt- age levels while maintaining acceptably low har- Figure 15: Principle Schematic of a DMOS unity-gain buffer ...

Page 9

... The sequence that we recommend during the ON/OFF transients is shown by Figure 16. The application of figure 17 shows the possibility using only one command for both st-by and mute functions. On both the pins, the maximum D93AU014 applicable range corresponds to the operating supply voltage. ST-BY OFF D93AU013 o C). TDA7295 9/13 ...

Page 10

... TDA7295 BRIDGE APPLICATION Another application suggestion is the BRIDGE configuration, where two TDA7295 are used, as shown by the schematic diagram of figure 25. In this application, the value of the load must not be lower than 8 Ohm for dissipation and current capability reasons. A suitable field of application includes HI-FI/TV subwoofers realisations ...

Page 11

... Figure 19: Frequency Response of the Bridge Application Figure 21: Distortion vs. Output Power Figure 20: Distortion vs. Output Power TDA7295 11/13 ...

Page 12

... TDA7295 mm DIM. MIN. TYP. MAX. MIN 2. 0.49 0.55 0.019 F 0.66 0.75 0.026 G 1.02 1.27 1.52 0.040 G1 17.53 17.78 18.03 0.690 H1 19.6 0.772 H2 20.2 L 21.9 22.2 22.5 0.862 L1 21.7 22.1 22.5 0.854 L2 17.65 18.1 0.695 L3 17.25 17.5 17.75 0.679 L4 10.3 10 ...

Page 13

... STMicroelectronics – Printed in Italy – All Rights Reserved Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. The ST logo is a registered trademark of STMicroelectronics STMicroelectronics GROUP OF COMPANIES http://www.st.com TDA7295 13/13 ...

Related keywords