4W AUDIO AMPLIFIER

4W AUDIO AMPLIFIER

Dual channel 46 W/2 Ω, single channel 92 W/1 Ω amplifier

General description

The TDA1566 is a car audio power amplifier with a complementary output stage realized in BCDMOS. The TDA1566 has two Bridge Tied Load (BTL) output stages and comes in a HSOP24 or DBS27P package. The TDA1566 can be controlled with or without I2C-bus. With I2C-bus control gain settings per channel and diagnostic trigger levels can be selected. Failure conditions as well as load identification can be read with I2C-bus. The load identification detects whether the outputs of a BTL channel are connected with a DC or AC load and discriminates between a speaker load, a line driver load and an open (unconnected) load. The TDA1566 can be configured in a single BTL mode and drive a 1 Ω load. For the single BTL mode it is necessary to connect on the Printed-Circuit Board (PCB) the outputs of both BTL channels in parallel.

Features

Operates in I2C-bus mode and non-I2C-bus mode

TH version: four I2C-bus addresses controlled by two pins; J version: two I2C-bus addresses controlled by one pin.

Two 4 Ω or 2 Ω capable BTL channels or one 1 Ω capable BTL channel

Low offset

Pop free off/standby/mute/operating mode transitions

Speaker fault detection

Selectable gain (26 dB and 16 dB)

In I2C-bus mode:

DC load detection: open, short and speaker or line driver present

AC load (tweeter) detection

Programmable trigger levels for DC and AC load detection

Per channel programmable gain (26 dB and 16 dB, selectable per channel)

Selectable diagnostic levels for clip detection and thermal pre-warning

Selectable information on the DIAG pin for clip information of each channel separately and independent enabling of thermal-, offset- or load fault.

Independent short-circuit protection per channel

Loss of ground and open VP safe

All outputs short-circuit proof to VP, GND and across the load

All pins short-circuit proof to ground

Temperature controlled gain reduction at high junction temperatures

Circuit Diagram

circuit diagram for dual channel 46W

 single channel 92 W/1 Ω amplifier

2 x 40 W car radio power amplifier

FEATURES

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

Differential inputs with high Common Mode Rejection Ratio (CMRR)

Mute, standby or operating mode selectable by pin

Load dump protection circuit

Short-circuit safe to ground; to supply voltage and across load

Loudspeaker protection circuit

Thermal protection at high junction temperature

Device switches to single-ended operation at high junction temperature

Clip detection at 2.5 % THD

Diagnostic signal indicating clipping, short-circuit protection and pre-warning of thermal protection.

GENERAL DESCRIPTION

The TDA1565TH is a monolithic power amplifier in a 20-lead heatsink small outline plastic package. It contains two identical 40 W amplifiers. Power dissipation is minimized by switching from SE to BTL mode only when a higher output voltage swing is needed. The device is developed primarily for car radio applications.

Circuit Diagram:

Circuit diagram 2 x 40 W car radio power amplifier

PCB layout:

PCB layout TDA1564 2 x 40 W car radio power amplifier

High efficiency 2 × 25 W/4 Ω stereo car radio power amplifier

FEATURES

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

Differential inputs with high Common Mode Rejection Ratio (CMRR)

Mute/standby/operating (mode select pin)

Load dump protection circuit

Short-circuit safe to ground, to supply voltage and across load

Loudspeaker protection circuit

Offset detection for each channel

Device switches to single-ended operation at excessive junction temperatures

Thermal protection at high junction temperature (170°C)

Clip detection at THD = 2.5 %

Diagnostic information (clip/protection/prewarning/offset).

GENERAL DESCRIPTION

The TDA1564 is a monolithic power amplifier in a 17-lead single-in-line (SIL) plastic power package. It contains two identical 25 W amplifiers. The dissipation is minimized by switching from SE to BTL mode, only when a higher output voltage swing is needed. The device is primarily developed for car radio applications.

Circuit diagram:

Circuit diagram  stereo car radio power amplifier

PCB Layout:

pcb layout for High efficiency 2 × 25 W/4 Ω stereo car radio power amplifier

2 x 25 W audio amplifier circuit TDA1563Q

FEATURES

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

Differential inputs with high Common Mode Rejection Ratio (CMRR)

Mute/standby/operating (mode select pin)

Zero crossing mute circuit

Load dump protection circuit

Short-circuit safe to ground, to supply voltage and across load

Loudspeaker protection circuit

Device switches to SE operation at excessive junction temperatures

Thermal protection at high junction temperature (170°C)

Diagnostic information (clip detection and protection/temperature)

Clipping information can be selected between

THD = 2.5% or 10%

GENERAL DESCRIPTION

The TDA1563Q is a monolithic power amplifier in a 17-lead DIL-bent-SIL plastic power package. It contains two identical 25 W amplifiers. The dissipation is minimized by switching from SE to BTL mode when a higher output voltage swing is needed. The device is primarily developed for car radio applications.

Circuit Diagram:

Circuit diagram 2 x 25 W audio amplifier circuit TDA1563Q

Datasheet for TDA1563Q: Download:

70 W power amplifier circuit

FEATURES:

• Very high output power, operating from a single low supply voltage
• Low power dissipation, when used for music signals
• Switches to low output power at too high case temperatures
• Few external components
• Fixed gain
• Differential inputs with high common mode rejection
• Mode select pin (on, mute and standby)
• Status I/O pin (class-H, class-B and fast mute)
• All switching levels with hysteresis
• Diagnostic pin with information about:
• Dynamic Distortion Detector (DDD)
• Any short-circuit at outputs
• Open load detector
• Temperature protection.
• No switch-on or switch-off plops
• Fast mute on supply voltage drops
• Quick start option (e.g. car-telephony/navigation)
• Low (delta) offset voltage at the outputs
• Load dump protection
• Short-circuit safe to ground, supply voltage and across the load
• Low power dissipation in any short-circuit condition
• Protected against electrostatic discharge
• Thermally protected
• Flexible leads.

GENERAL DESCRIPTION:

The TDA1562Q is a monolithic integrated 70 W/4 Ω Bridge-Tied Load (BTL) class-H high efficiency power amplifier in a 17-lead DIL-bent-SIL plastic power package. The device can be used for car audio systems (e.g. car, radio and boosters) as well as mains fed applications (e.g.midi/mini audio combinations and TV sound).

Circuit Diagram:

Circuit diagram 70 W power amplifier circuit

Datasheet for TDA1562Q: Download

2 x 23 W high efficiency car radio power amplifier

FEATURES:

Low dissipation due to switching from Single-Ended (SE) to Bridge-Tied Load (BTL) mode

High Common Mode Rejection Ratio (CMRR)

Mute/standby/operating/SE-only (mode select pin)

Zero crossing mute and standby circuit

Load dump protection circuit

Short-circuit safe to ground, to supply voltage and across load

Loudspeaker protection circuit

Device switches to single-ended operation at excessive junction temperatures.

GENERAL DESCRIPTION:

The TDA1561Q is a monolithic power amplifier in a 13 lead single-in-line (SIL) plastic power package. It contains two identical 23 W amplifiers. The dissipation is minimized by switching from SE to BTL mode, only when a higher output voltage swing is needed. The device is primarily developed for car radio applications.

Circuit Diagram:

2 x 23 W high efficiency car radio power amplifier

Datasheet for TDA1561Q: Download