TDA1566 Datasheet, PDF(1/46 Page) NXP Semiconductors – I2C-bus controlled dual channel 46 W/2 OHM, single channel 92 W/1 OHM amplifier

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TDA1566 Datasheet, PDF (1/46 Pages) NXP Semiconductors – I2C-bus controlled dual channel 46 W/2 OHM, single channel 92 W/1 OHM amplifier

TDA1566

I2C-bus controlled dual channel 46 W/2 â¦, single channel

92 W/1 â¦ ampliï¬er with load diagnostic features

Rev. 02 â 20 August 2007

Product data sheet

1. General description

The TDA1566 is a car audio power ampliï¬er 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 identiï¬cation can be read with I2C-bus. The load identiï¬cation 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 conï¬gured in a single BTL mode and drive a 1 â¦ 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.

2. Features

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

I TH version: four I2C-bus addresses controlled by two pins; J version: two I2C-bus

addresses controlled by one pin

I Two 4 â¦ or 2 â¦ capable BTL channels or one 1 â¦ capable BTL channel

I Low offset

I Pop free off/standby/mute/operating mode transitions

I Speaker fault detection

I Selectable gain (26 dB and 16 dB)

I In I2C-bus mode:

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

N AC load (tweeter) detection

N Programmable trigger levels for DC and AC load detection

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

N Selectable diagnostic levels for clip detection and thermal pre-warning

N Selectable information on the DIAG pin for clip information of each channel

separately and independent enabling of thermal-, offset- or load fault

I Independent short-circuit protection per channel

I Loss of ground and open VP safe

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

I All pins short-circuit proof to ground

I Temperature controlled gain reduction at high junction temperatures

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