No Longer Manufactured
TDA1566 | Amplifier with Load Diagnostic Features

TDA1566: I²C-Bus Controlled Dual Channel 46 W/2 Ohm, Single Channel 92 W/1 Ohm Amplifier with Load Diagnostic Features ARCHIVED

Overview

Archived content is no longer updated and is made available for historical reference only.

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.

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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 V_P safe
All outputs short-circuit proof to V_P, GND and across the load
All pins short-circuit proof to ground
Temperature controlled gain reduction at high junction temperatures
Fault condition diagnosis per channel: short to ground, short to supply, shorted lead and speaker fault (wrongly connected)
Low battery voltage detection
TH version: pin compatible with the TDA8566TH1

MoreLess

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 V_P safe
All outputs short-circuit proof to V_P, GND and across the load
All pins short-circuit proof to ground
Temperature controlled gain reduction at high junction temperatures
Fault condition diagnosis per channel: short to ground, short to supply, shorted lead and speaker fault (wrongly connected)
Low battery voltage detection
TH version: pin compatible with the TDA8566TH1

Data Sheets

TDA1566: I2C-Bus Controlled Dual Channel 46 W/2 Ohm, Single Channel 92 W/1 Ohm Amplifier with Load Diagnostic Features ARCHIVED

Overview

Features

TDA1566: I²C-Bus Controlled Dual Channel 46 W/2 Ohm, Single Channel 92 W/1 Ohm Amplifier with Load Diagnostic Features ARCHIVED