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TDA1554 Audio Amplifier

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Pin Configuration

Pin No.

Pin Name

Description

1.

NINV1

Non-inverting input 1

2.

INV1

Inverting input 1

3.

GND

Ground (signal)

4.

RR

Supply voltage ripple rejection

5.

VP1

Positive Input voltage 1

6.

OUT1

Output 1

7.

GND1

Power Ground 1

8.

OUT2

Output 2

9.

NC

Not connected

10.

OUT3

Output 3

11.

GND2

Power Ground 2

12.

OUT4

Output 4

13.

VP2

Positive Input voltage 2

14.

M/SS

Mute/Stand-by switch

15.

NC

Not connected

16.

INV2

Inverting input 2

17.

NINV2

Non-inverting input 2

 

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

 

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

2x22 Watt Stereo Audio Power Amplifier Circuit

 

4*11 Watt Stereo Audio Power Amplifier Circuit

4x11 Watt Stereo Audio Power Amplifier Circuit

 

2D-Model

 TDA1554Q 2D-Model




Download Datasheet PDF:
TDA1554 Audio Amplifier Datasheet