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-pin DIL-bent-SIL package.

The device contains 2 amplifiers in a Bridge-Tied Load (BTL) configuration. The output power is 2×25 W in a 4Ωload or 2 ×40 W in a 2Ωload. 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

4Ωand 2Ωload 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 VPand 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