TDA7379 IC ST Multiwatt15 Audio Amplifier TDA7379

Product Overview

A highly versatile, new-generation class AB audio power amplifier capable of operating in either a four-channel single-ended configuration or a dual-channel bridged (BTL) configuration. This integrated circuit is engineered to deliver high output power capability—up to two channels of 38 watts into 4 ohms or four channels of 13 watts into 2 ohms—with an exceptionally low external component count that eliminates the need for bootstrap capacitors or Boucherot cells. Featuring an internally fixed gain of 26 decibels in bridged mode, it incorporates a complementary metal-oxide-semiconductor compatible standby function to eliminate audible pop noises during transition. To ensure robust system-level reliability, the device integrates comprehensive diagnostic facilities alongside electronic protection loops against output short circuits, reversed battery connections, fortuity open grounds, and chip overtemperature conditions via a soft thermal limiter.

Core Specifications

• Manufacturer: STMicroelectronics

• Package Type: Multiwatt15 (Vertical through-hole package)

• Function: 4 x 13 Watt or 2 x 38 Watt High-Power Audio Frequency Amplifier (MPN: TDA7379)

• Input Voltage: Recommended operational supply voltage up to 22V, optimized for 15V to 18V automotive and home audio systems

• Control Interface: Hardware-controlled logic interface providing a standby pin for low-power mode selection and an onboard diagnostic clip detector line to monitor soft thermal limiting and output short-circuit conditions.