4 x 6W Power amplifier with load detection and auto BTL/SE selection

Circuit Diagram:

Power amplifier with load detection and auto BTL/SE selection

Multi-purpose high-gain power amplifier

Features

• High gain
• Operating voltage from 8 to 28 V
• Low distortion
• Few external components, fixed gain
• High output power
• Can be used as a stereo amplifier in bridge-tied load (BTL) or quad single-ended (SE) amplifiers
• Single-ended mode without loudspeaker capacitor
• Mute and standby mode with one- or two-pin operation
• Diagnostic information for Dynamic Distortion Detector (DDD), high temperature (145 °C) and short-circuit
• No switch on/off plops when switching between ‘standby’ to ‘mute’ and from ‘mute’ to ‘on’
• Low offset variation at outputs between ‘mute’ and ‘on’
• Fast mute on supply voltage drops.
• Reverse polarity safe (with protection diode added)
• Short-circuit proof to ground, positive supply voltage on all pins and across load
• ESD protected on all pins
• Thermal protection against temperatures exceeding 150 °C
• Load dump protection
• Protected against open-circuit ground pins and output short-circuited to supply ground.

General Description

The TDA8581 is a stereo bridge-tied load (BTL) or a quad single-ended amplifier that operates over a wide supply voltage range from 8 to 28 V. This makes it suitable for many applications, such as car radios, television and home-sound systems. Because of an internal voltage buffer, this device can be used without a capacitor connected in series with the load (SE application). A combined BTL and 2 × SE application can also be configured.

Circuit Diagram

Multi-purpose high-gain power amplifier

TDA8580 Multi-purpose power amplifier 4 x 20 W

FEATURES

• Operating voltage from 8 to 28 V
• Low distortion
• Few external components, fixed gain
• High output power
• Can be used as a stereo amplifier in bridge-tied load (BTL) or quad single-ended (SE) amplifiers
• Single-ended mode without loudspeaker capacitor
• Mute and standby mode with one- or two-pin operation
• Diagnostic information for Dynamic Distortion Detector (DDD), high temperature (145 °C) and short-circuit
• No switch on/off plops when switching between‘standby’ to ‘mute’ and from ‘mute’ to ‘on’
• Low offset variation at outputs between ‘mute’ and ‘on’
• Fast mute on supply voltage drops.

Protection

• Reverse polarity safe
• Short-circuit proof to ground, positive supply voltage on all pins and across load
• ESD protected on all pins
• Thermal protection against temperatures exceeding 150 °C
• Load dump protection
• Protected against open-circuit ground pins and output short-circuited to supply ground.

GENERAL DESCRIPTION

The TDA8580 is a stereo bridge-tied load (BTL) or a quad single-ended amplifier that operates over a wide supply voltage range from 8 to 28 V. This makes it suitable formany applications, such as car radios, television and home-sound systems. Because of an internal voltage buffer, this device can be used without a capacitor connected in series with the load (SE application). A combined BTL and 2 × SE application can also be configured.

Circuit Diagram

Stereo bridge-tied load application

Quad single-ended application

Dual single-ended and one bridge-tied load application

4 × 40 W BTL quad car radio power amplifier

FEATURES:

Requires very few external components

High output power

Low output offset voltage

Fixed gain

Diagnostic facility (distortion, short-circuit and temperature pre-warning)

Good ripple rejection

Mode select switch (operating, mute and standby)

Load dump protection

Short-circuit safe to ground and to VP and across the load

Low power dissipation in any short-circuit condition

Thermally protected

Reverse polarity safe

Electrostatic discharge protection

No switch-on/switch-off plop

Flexible leads

Low thermal resistance

Pin compatible with the TDA8568Q, except for the gain.

GENERAL DESCRIPTION:

The TDA8571J is a integrated class-B output amplifier contained in a 23-lead Single-In-Line (SIL) plastic power package. It contains four amplifiers in a BTL configuration, each with a gain of 34 dB. The output power is 4 × 40 W (EIAJ) into a 4 Ω load.

APPLICATIONS:

Primarily developed for car radio applications

Circuit Diagram:

4 × 40 W BTL quad car radio power amplifier

2 × 40 W/2 Ω stereo BTL car radio power amplifier

General description:

The TDA8566 is an integrated class-B output amplifier which is available in several packages. TDA8566TH is contained in a 20-lead small outline plastic package. The TDA8566TH1 is a 24-lead small outline plastic package which is pin compatible with the I2C-bus controlled amplifier TDA1566TH for one board layout. TDA8566Q is a 17-pinDIL-bent-SIL package. The device contains 2 amplifiers in a Bridge-Tied Load (BTL) configuration. The output power is 2 × 25 W in a 4 Ω load or 2 × 40 W in a 2 Ω load. It has a differential input stage and 2 diagnostic outputs. The device is primarily developed for car radio applications.

Features:

Differential inputs

Very high Common Mode Rejection Ratio (CMRR)

High common mode input signal handling

Requires very few external components

High output power

4 Ω and 2 Ω load driving capability

Low offset voltage at output

Fixed gain

Diagnostic facility (distortion, short-circuit and temperature pre-warning)

Good ripple rejection

Mode select switch (operating, mute and standby)

Load dump protection

Short-circuit proof to ground, to VP and across the load

Low power dissipation in any short-circuit condition

Thermally protected

Reverse polarity safe

Protected against electrostatic discharge

No switch-on/switch-off plops

Low thermal resistance

TDA8566TH1 is pin compatible with TDA1566TH

Circuit Diagram:

2 × 40 W/2 Ω stereo BTL car radio power amplifier 

4 x 12 W power amplifier with dynamic distortion detector and diagnostic interface

FEATURES
Requires very few external components
High output power
Fixed gain
Diagnostic facility (distortion, short-circuit and temperature detection)
Good ripple rejection
Mode select switch (operating, mute and stand-by)
Load dump protection
AC and DC short-circuit safe to ground and to VP
Low power dissipation in any short-circuit condition
Thermally protected
Reverse polarity safe
Electrostatic discharge protection
No switch-on/switch-off plop
Flexible leads
Low thermal resistance
Identical inputs.

GENERAL DESCRIPTION

The TDA8562Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) power package. It contains 4 × 12 W single-ended amplifiers.

Circuit Diagram

4 x 12 W power amplifier with dynamic distortion detector and diagnostic interface

2 × 24 W BTL or 4 × 12 W single-ended car radio power amplifier TDA8561Q

FEATURES:

• Requires very few external components
• High output power
• Flexibility in use; Quad single-ended or stereo BTL
• Low output offset voltage
• Fixed gain
• Diagnostic facility (distortion, short-circuit and temperature detection)
• Good ripple rejection
• Mode select switch (operating, mute and standby)
• Load dump protection
• AC and DC short-circuit safe to ground and to VP
• Low power dissipation in any short-circuit condition
• Thermally protected
• Reverse polarity safe
• Electrostatic discharge protection
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance
• Identical inputs (inverting and non-inverting).

GENERAL DESCRIPTION

The TDA8561Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) power package. It contains 4 × 12 W Single-Ended (SE) or 2 × 24 W Bridge-Tied Load (BTL) amplifiers. The device is primarily developed for car radio applications.

Circuit Diagram:

Circuit diagram for 2 × 24 W single-ended car radio power amplifier

Circuit diagram for 4 × 12 W single-ended car radio power amplifier