TDA1554 Audio Amplifier

TDA1554 Pinout Configuration

Features

• Flexibility in use − Quad single-ended or stereo BTL
• High output power
• Low offset voltage at outputs (important for BTL)
• Fixed gain and Good ripple rejection
• Mute/stand-by switch
• Protected with Load Dump, Electrostatic Discharge, and Reverse Polarity
• AC and DC short-circuit-safe to ground and VP
• Thermally protected
• Capability to handle high energy on outputs (VP = 0 V)
• Low thermal resistance
• Identical inputs (inverting and non-inverting)
• Requires very few external components

Technical Specification

• Supply Voltage Range: 6V to 18V
• Output Current: 4A
• Stand-by Current: 10uA
• Total Quiescent Current: 160mA
• DC output offset voltage: 100mV
• Input Impedance: 50kΩ to75kΩ
• Supply Voltage Rejection Ratio: 48dB

Note: More technical details can be found in the TDA1554 Datasheet linked at the bottom of this page.

Brief Description

TDA1554 is a 4*11W single ended or 2*22W power amplifier IC, with an integrated Class-B output amplifier. TDA1554Q comes in a 17 lead single-in-line package. The internal circuitry contains a 4*11W single ended or 2*22W bridge amplifier. Among all four amplifiers two are inverting and other two are non-inverting. Also, each amplifier has a gain of 20dB (26dB in BTL). TDA1554q also have mute/stand-by feature.

TDA1554Q is mainly designed for car radio applications.

How to Use?

TDA1554 is an amplifier IC and can be used for designing 2*22 watt and 4*11 watt stereo audio power amplifier circuit.  The circuit dissipated nearly 28 watt of heat so a good heatsink is necessary. The circuit operates at 12v and 5 amps at full volume. Reducing the volume lowers the current consumption and less heat will be dissipated.

Now, as we know we can use this IC for 2*22 watt and 4*11 watt stereo audio power amplifier circuit. The connection diagram for both are given below:

2*22 Watt Stereo Audio Power Amplifier Circuit

4*11 Watt Stereo Audio Power Amplifier Circuit

2D-Model and Dimensions