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.

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 4Ωor 2Ωcapable BTL channels or one 1Ωcapable 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 VPsafe

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

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