4x7W OR 2x22W CAR RADIO POWER AMPLIFIER

Features:

• HIGH OUTPUT POWER CAPABILITY:
• 4 x 9.5W OR 2 x 32W/4Ω MAX
• 4 x 8.5W OR 2 x 28W/4Ω EIAJ
• 4 x 7W OR 2 x 22W/4Ω @14.4V,1KHz; 10%
• MINIMIZED EXTERNAL COUNT
• - NO NEED OF DECOUPLING CAPACITORS
• - NO NEED OF BOOTSTRAP CAPACITOR
• - NO NEED OF EXTERNAL COMPENSATION
• - INTERNALLY FIXED GAIN (20dB)
• POP-FREE AUDIO SECTION
• ST-BY FUNCTION (C-MOS)
• MUTE FUNCTION (C-MOS)
• CLIP DETECTOR, THERMAL WARNING,
• SHORT CIRCUIT DETECTION
• BUILT-IN VOLTAGE REGULATORS:
• - 5V @ 150mA WITH RESET
• - 5V @ 500mA WITH ST-BY
• - 8.5V @ 200mA WITH ST-BY

Circuit Diagram:

TDA7451 2x22 W

TDA7451 4x7W

TDA1557Q 2 x 22w car radio power amplifier

FEATURES

Requires very few external components

High output power

Low offset voltage at output

Fixed gain

Good ripple rejection

Mute/stand-by switch

Load dump protection

AC and DC short-circuit-safe to ground and VP

Thermally protected

Reverse polarity safe

Capability to handle high energy on outputs (VP = 0)

Protected against electrostatic discharge

No switch-on/switch-off plop

Flexible leads

Low thermal resistance.

GENERAL DESCRIPTION

The TDA1557Q is a monolithic integrated class-B output amplifier in a 13-lead single-in-line (SIL) plastic power package. The device contains 2 × 22 W amplifiers in BTL configuration and has been primarily developed for car radio applications.

Circuit Diagram

Circuit diagram for TDA1557Q 2 x 22w car radio power amplifier

TDA1556Q 2 x 22 W stereo BTL differential amplifier with speaker protection

FEATURES

Few peripheral components

High output power

Low output offset voltage

Fixed gain

Loudspeaker protection (with diagnostic facility)

Differential inputs

Dynamic Distortion Detector (DDD)

High common mode input signal

Very high CMRR

Good ripple rejection

Mute/stand-by switch

Load dump protection

Short-circuit safe

Thermally protected

Reverse polarity safe

High energy handling capability at the outputs (VP = 0 V)

Electrostatic discharge protection

No switch-on/switch-off plop

Flexible leads

Low thermal resistance

GENERAL DESCRIPTION

TDA1556Q is a monolithic integrated class-B output amplifier containing two 22 Watt amplifiers in a BTL configuration. The device is contained in a 17-lead single-in-line (SIL) plastic power package. It has two differential inputs and is primarily intended for car booster applications.

Circuit Diagram:

Circuit diagram for TDA1556Q 2 x 22 W stereo BTL differential amplifier with speaker protection

4 x 11 W single-ended or 2 x 22 W power amplifier with distortion detector

GENERAL DESCRIPTION

The TDA1555Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package. The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers. The device is primarily developed for car radio applications.

Features

• Requires very few external components
• Flexibility in use − Quad single-ended or stereo BTL
• High output power
• Low offset voltage at outputs (important for BTL)
• Fixed gain
• Good ripple rejection
• Mute/stand-by switch
• Load dump protection
• AC and DC short-circuit-safe to ground and VP
• Thermally protected
• Reverse polarity safe
• Capability to handle high energy on outputs (VP = 0 V)
• Protected against electrostatic discharge
• No switch-on/switch-off plop
• Low thermal resistance
• Identical inputs (inverting and non-inverting)
• Flexible leads
• Distortion detector

Circuit Diagram:

TDA1555Q 4 x 11 W single-ended 

TDA1555Q 2 x 22 W power amplifier with distortion detector

TDA1552Q 2 x 22 W BTL stereo car radio power amplifier

GENERAL DESCRIPTION

The TDA1552Q is an integrated class-B output amplifier in a 13-lead single-in-line (SIL) plastic power package. The circuit contains 2 x 22 W amplifiers in Bridge Tied Load (BTL) configuration. The device is primarily developed for car radio applications.

Features

• Requires very few external components
• High output power
• Low offset voltage at outputs
• Fixed gain
• Good ripple rejection
• Mute/stand-by switch
• Load dump protection
• AC and DC short-circuit-safe to ground and VP
• Thermally protected
• Reverse polarity safe
• Capability to handle high energy on outputs (VP = 0 V)
• Protected against electrostatic discharge
• No switch-on/switch-off plop
• Low thermal resistance
• Flexible leads.

Circuit diagram:

Circuit diagram for TDA1552Q 2 x 22 W BTL stereo car radio power amplifier

2 x 22 W BTL car radio power amplifier with diagnostic facility

FEATURES

• Requires very few external components
• Flexible in use - quad, single ended or stereo BTL 2C-bus control
• Dynamic distortion detector
• Thermal protection
• Output status information
• Power supply dip detection
• High output power
• MUTE/sleep mode by writing to I2C-bus
• Stand-by mode
• Fixed gain
• Good ripple rejection
• Load dump protection
• AC/DC short circuit safe to ground and VP
• Reverse polarity safe
• Low offset voltage at output
• Capable of handling high energy at outputs (VP = 0 V)
• Electrostatic discharge protection
• No switch-ON/switch-OFF plop
• Flexible leads
• Low thermal resistance
• Identical inputs (inverting and non-inverting).

DESCRIPTION

The TDA1551Q is an integrated class-B output amplifier encased in a 17-lead single-in-line plastic power package. The device contains 4 × 11 W single-ended (SE) or 2 × 22 W BTL amplifiers and is intended for use in car radio applications.

Circuit Diagram

2 x 22 W BTL car radio power amplifier with diagnostic facility

2 × 22 W stereo BTL car radio power amplifier with loudspeaker protection

General Description

The TDA1553CQ is a monolithic integrated class-B output amplifier in a 13-lead plastic DIL-bent-SIL power package. It contains 2 × 22 W amplifiers in BTL configuration.

Circuit Diagram

2 × 22 W stereo BTL car radio power amplifier with loudspeaker protection