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