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TDA7294 DMOS Audio Amplifier: Pinout, Datasheet and Power

IC AMP AB MONO 100W 15MULTIWATT TDA7294 is a 100v-100w DMOS audio amplifier with MUTE/ST-BY. This article mainly covers pinout, power, datasheet, FAQ, and other details about TDA7294.

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Sep 10, 2021

Winfred Hobson

1

Simple & Super Power HiFi Heavy Bass Amplifier // How to Make Powerful Amplifier Using TDA 7294

 

IC AMP AB MONO 100W 15MULTIWATT

TDA7294 is a 100v-100w DMOS audio amplifier with MUTE/ST-BY. This article mainly covers pinout, power, datasheet, FAQ, and other details about TDA7294. Furthermore, there is a huge range of Semiconductors, Capacitors, Resistors, and Ics in stock. Welcome RFQ!

TDA7294V

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TDA7294 Pinout

Pin No. Pin Name Pin Description
1 Stand-By GND Stand-By GND, output   gets connected to ground
2 Inverting input The Inverting input
3 Non-Inverting input The Non-Inverting   input
4 SVR Supply Voltage   Rejection used for power supply ripple or noise rejection
5 N.C. Not connected
6 Bootstrap Used to step-up   charge
7 '+Vs Supply Positive supply
8 #NAME? Negative supply
9 Stand-by Standby control   pin used for low power mode, output runs in low current mode
10 Mute Audio is disabled of   the output
11 N.C. Not connected
12 N.C. Not connected
13 '+Vs Power Positive power supply
14 Out Output pin
15 #NAME? Negative power supply

TDA7294 CAD Model

Symbol

Symbol

 

Footprint

Footprint

3D Model

3D Model

Specifications

STMicroelectronics TDA7294V technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics TDA7294V.

TDA7294V Tech Specifications

STMicroelectronics TDA7294V technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics TDA7294V.

Product Attribute Attribute Value
Lifecycle StatusACTIVE (Last Updated: 6 months ago)
Factory Lead Time6 Weeks
MountThrough Hole
Mounting TypeThrough Hole
Package / CaseMultiwatt-15 (Vertical, Bent and Staggered Leads)
Number of Pins15Pins
Weight8.164663g
Manufacturer Package IdentifierMultiwatt-15
Operating Temperature0°C~70°C TA
PackagingTube
JESD-609 Codee3
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations15Terminations
ECCN CodeEAR99
TypeClass AB
Terminal FinishTin (Sn)
Max Power Dissipation50W
Voltage - Supply±10V~40V
Product Attribute Attribute Value
Terminal PositionZIG-ZAG
Number of Functions1Function
Base Part NumberTDA7294
Pin Count15
Output Type1-Channel (Mono)
Number of Channels1Channel
Nominal Supply Current30mA
Power Dissipation50W
Output Current10A
Quiescent Current30mA
Output Power100W
Output Current per Channel10A
Supply TypeDual
Input Offset Voltage (Vos)10mV
Bandwidth20 kHz
Voltage Gain80dB
Power Supply Rejection Ratio (PSRR)75dB
Gain80 dB
Max Dual Supply Voltage40V
Product Attribute Attribute Value
Max Output Power100W
Min Dual Supply Voltage10V
Dual Supply Voltage28V
Input Bias Current500nA
Max Junction Temperature (Tj)150°C
Max Output Power x Channels @ Load100W x 1 @ 8 Ω
Ambient Temperature Range High70°C
Harmonic Distortion10%
Load Impedance4Ohm
FeaturesDepop, Mute, Short-Circuit and Thermal Protection, Standby
Height21mm
Length19.6mm
Width5mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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TDA7294 Block Diagram

TDA7294 Block Diagram

TDA7294 Features

  • Very High Operating Voltage Range (±40v)

  • Demos Power Stage

  • High Output Power (Up To 100w 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

TDA7294 Power

The IC has a DMOS output stage and can deliver 100W RMS into an 8 Ohm speaker at +/-38VDC dual supply. The TDA7294 has low noise, low distortion, and good ripple rejection and can be operated from a wide range of supply voltages. The IC has built-in short circuit protection and thermal shutdown circuitries.

 

TDA7294 Applications

  • HI-FI

  • CAR-RADIO

  • Bridge Application Circuit

  • An audio class AB amplifier

  • Stereos system

  • Subwoofer

 

Where to use TDA7294

TDA7294 can be used in circuits requiring high power and high-efficiency amplification applications. R1 is the input resistance and its recommended value is 22k Ω. R2=680 Ω and R3= 22k Ω decide the loop gain of the amplifier. The R4=22k Ω and C4=10µF determine the standby ON/OFF time duration.

 

How to use TDA7294

TDA7294 Circuit

R1 is the input resistance and its recommended value is 22k Ω. R2=680 Ω and R3= 22k Ω decide the loop gain of the amplifier. The R4=22k Ω and C4=10µF determine the stand-by ON/OFF time duration. The R5=10k Ω and C3=10µF are used for deciding the mute time constant. The input DC

The decoupling used is C1=0.47µF. C2=22mF is the feedback DC. C5=22mF Bootstrapping. C6, C8=1000mF, and C7, C9 0.1mF are used for supply voltage bypass.

 

TDA7294 Dimension

TDA7294 Manufacturer

STMicroelectronics (ST) group was established in June 1988 as a result of the merger of SGS Microelectronics of Italy and Thomson of France. In May 1998 SGS-Thomson Microelectronics changed its name to STMicroelectronics Limited.

It is the world's largest manufacturer of dedicated analog chips and power conversion chips, the world's largest supplier of industrial semiconductors and set-top box chips, and a world leader in discrete components, mobile phone camera modules, and automotive integrated circuits.

Datasheet PDF

TDA7294V Documents

Download datasheets and manufacturer documentation for TDA7294V

Frequently Asked Questions

What can be TDA7294 used for?
TDA7294 is a monolithic class AB audio amplifier with a DMOS output stage. Firstly, it is used in Hi-Fi field applications for amplification of audio signals which includes self-powered loudspeakers, TV, etc. Secondly, it has its fault protection circuitry against short-circuits and provides a thermal shutdown.
What is the highest possible voltage of TDA7294?
TDA7294 parameters are up to 40v.
How to build amplifier with TDA7294?
TDA7294 is a monolithic integrated circuit in the Multiwatt15 package, with high output power (up to 100W) intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self-powered loudspeakers, Topclass TV). Thanks to the wide voltage range and the high out current capability it can supply the highest power into both 4W and 8W loads even in presence of poor supply regulation, with high Supply Voltage Rejection.
Where can I download TDA7294 subwoofer amplifier circuit?
To drive high power subwoofer loudspeaker we need a power Amplifier then only we can get perfect bass sound from the input audio signal. Here IC TDA7294 Subwoofer Amplifier Circuit designed with minimum external components.
FAQ
What can be TDA7294 used for?
TDA7294 is a monolithic class AB audio amplifier with a DMOS output stage. Firstly, it is used in Hi-Fi field applications for amplification of audio signals which includes self-powered loudspeakers, TV, etc. Secondly, it has its fault protection circuitry against short-circuits and provides a thermal shutdown.
What is the highest possible voltage of TDA7294?
TDA7294 parameters are up to 40v.
How to build amplifier with TDA7294?
TDA7294 is a monolithic integrated circuit in the Multiwatt15 package, with high output power (up to 100W) intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self-powered loudspeakers, Topclass TV). Thanks to the wide voltage range and the high out current capability it can supply the highest power into both 4W and 8W loads even in presence of poor supply regulation, with high Supply Voltage Rejection.
Where can I download TDA7294 subwoofer amplifier circuit?
To drive high power subwoofer loudspeaker we need a power Amplifier then only we can get perfect bass sound from the input audio signal. Here IC TDA7294 Subwoofer Amplifier Circuit designed with minimum external components.

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