Part Number: TDA7376B

Manufacturer: STMicroelectronics


Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of TDA7376B

Datasheet  TDA7376B datasheet
Category Integrated Circuits (ICs)
Family Linear – Amplifiers – Audio
Manufacturer STMicroelectronics
Packaging Tube
Part Status Active
Type Class AB
Output Type 2-Channel (Stereo)
Max Output Power x Channels @ Load 40W x 2 @ 4 Ohm
Voltage – Supply 8 V ~ 18 V
Features Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Mounting Type Through Hole
Operating Temperature -40°C ~ 105°C (TA)
Supplier Device Package 15-Multiwatt
Package / Case Multiwatt-15 (Vertical, Bent and Staggered Leads)

TDA7376B Description

The TDA7376B is a new technology dual bridge audio amplifier that comes in a Multiwatt 15 package. It was developed specifically for use in applications related to automobile radios. There is no requirement for bootstrap capacitors because the TDA7376B has a completely complementary PNP/NPN output stage architecture. This allows the device to deliver a rail-to-rail voltage swing. Differential input pairs, which will accept either single ended or differential input signals, offer strong noise immunity, making the device appropriate for use in applications relating to vehicle radios and car boosters.

The audio mute control, which reduces the volume of the signal output by the audio amplifiers, eliminates any pops and crackles that may have been produced by earlier stages and attenuates any transients that may occur. The cost of the power switch is brought down thanks to the standby control, which removes the bias from the amplifiers. The on-board programmable distortion detector enables compression capability if the amplifier is being over powered, so limiting the amount of distortion at any level that is within the range of levels that may be programmed.

TDA7376B Features

  • Differential inputs.
  • Minimum external components count.
  • Gain that is determined internally (26 db).
  • Mute function (cmos compatible).
  • Automute at minimum supply voltage detection.
  • Does the standby function.
  • There is no audible pop while operating the mute and standby buttons.
  • Clipping detector with a customizable threshold for the amount of distortion.

TDA7376B Specifications

  • Product Category: Audio Amplifiers; Identifies the item as an audio amplifier that boosts the volume of audio transmissions;
  • RoHS: Details Specifies that the product complies with the Restriction of Hazardous Substances (RoHS) directive, which restricts using certain hazardous substances in electronic products. This directive was created to protect human health and the environment from the adverse effects of exposure to these substances.
  • Indicates the series or model of the audio amplifier. The letter TDA7376B denotes the series.
  • Product: Audio Amplifiers – Indicates that the product sold is audio amplifiers.
  • Class: Class-AB – Specifies the class of operation of the audio amplifier, which is Class-AB. Class refers to the type of operation.
  • Output Power: 37 W – Indicates the output power of the audio amplifier, which is 37 watts. Specifies the output power of the audio amplifier.
  • Mounting Style: Through Hole This parameter specifies the mounting style of the audio amplifier, which is a through-hole mounting configuration.
  • Specifies the kind of audio amplifier, which is a 2-channel stereo amplifier. The type of audio amplifier is specified here.
  • Package/Case: Multiwatt-15 – Indicates the sort of audio amplifier with a package or case that is a Multiwatt-15.
  • Audio It specifies the suggested load impedance of the audio amplifier, which is 4 ohms and has a value of “Load Impedance: 4 Ohms.”
  • Specifies the audio amplifier’s total harmonic distortion plus Noise (THD+N), which is 0.08%. The value for this parameter may be found in the THD+N field.
  • Supply Voltage – Max: 18 V – Indicates the maximum supply voltage the audio amplifier can handle, 18 volts.
  • The audio amplifier has a minimum supply voltage of 8 volts, specified by the Supply Voltage – Min parameter value.
  • Minimum Operational Temperature: -40 C – Specifies the minimum working temperature of the audio amplifier, which is -40 degrees Celsius. This temperature is required for the amplifier to function properly.
  • Maximum Operational Temperature: +150 C – Specifies the maximum working temperature of the audio amplifier, which is +150 degrees Celsius. This temperature cannot be exceeded under any circumstances.
  • Qualification: AEC-Q100 – Indicates that the audio amplifier is qualified for use in automotive applications and complies with the requirements established by the Automotive Electronics Council (AEC) Q100.
  • Tube Packaging – This specifies the type of tube used for the audio amplifier’s packaging, which is a tube.
  • Specifies the brand of the audio amplifier, STMicroelectronics, as the value. The value is “Brand: STMicroelectronics.”
  • CMRR, which stands for common mode rejection ratio and has a value of 60 decibels, is a specification that identifies the common mode rejection ratio of the audio amplifier.
  • Description/Function: Speaker – This component identifies the purpose of the audio amplifier, which is to provide power to a speaker.
  • The gain of the audio amplifier is specified to be 26 decibels by using the notation “gain: 26 dB.”
  • The audio amplifier has a height of 10.7 millimeters specified in the product.
  • The audio amplifier has a differential input, which may be specified using the parameter titled “Input Type: Differential.”
  • The audio amplifier has a length of 19.6 millimeters, which is specified here.
  • Number of Channels: 2 Channels This value specifies the number of channels available on the audio amplifier, is 2.
  • Specifies the operational supply current of the audio amplifier, which is specified to be 200 milliamps and has a value of 200 mA.
  • Specifies the operational supply voltage range of the audio amplifier, which is 9 volts to 15 volts and can be any of the following values: 9 volts, 12 volts, or 15 volts.
  • The audio amplifier has a maximum output current of 8000 milliamps, specified by the value of the output current parameter, which is 8000 mA.


For the most part, the TDA7376B is a high-performance dual bridge audio amplifier made for vehicle radio and automobile booster applications. It has a differential input pair that can take either single-ended or differential input signals and a completely complementary PNP/NPN output stage arrangement that provides a rail-to-rail voltage swing without bootstrap capacitors. The amplifier’s audio mute and standby features cancel out noise from earlier stages and mitigate “pop” while turning the amp on and off. The TDA7376B is a distortion limiter and compressor with a customizable clipping detection and distortion detector. Because it complies with RoHS regulations and achieves Automotive Electronics Council (AEC) Q100 certification, it can be used in vehicles. The amplifier is housed in a Multiwatt-15 package suitable for through-hole mounting, has a maximum output power of 37 watts, and can work from a supply voltage range of 9 volts to 15 volts.

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