1998 Sep 23

2

Philips Semiconductors

Product specification

2

× 25 W BTL stereo car radio power amplifier

with differential inputs and diagnostic outputs

TDA8566Q

FEATURES

• Differential inputs

• Very high Common Mode Rejection Ratio (CMRR)

• High common mode input signal handling

• Requires very few external components

• High output power

• 4 Ω and 2 Ω load 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

• Low power dissipation in any short-circuit condition

• Thermally protected

• Reverse polarity safe

• Protected against electrostatic discharge

• No switch-on/switch-off plop

• Flexible leads

• Low thermal resistance.

GENERAL DESCRIPTION

The TDA8566Q is an integrated class-B output amplifier

contained in a 17-lead single-in-line (SIL; bent to DIL)

plastic power package. The device contains two amplifiers

in a Bridge-Tied Load configuration (BTL). The output

power is 2

× 25 W in a 4 Ω load or 2 × 40 W in a 2 Ω load.

It has a differential input stage and two diagnostic outputs.

The device is primarily developed for car radio

applications.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

operating supply voltage

6

14.4

18

V

repetitive peak output current

−−

7.5

A

total quiescent current

−

115

−

mA

stand-by current

−

0.1

100

µA

switch-on current

−−

40

µA

input impedance

100

120

−

k

Ω

output power

−

25

−

W

−

40

−

W

SVRR

supply voltage ripple rejection

60

−

dB

α

cs

channel separation

50

−

dB

CMRR

common mode rejection ratio

−

75

−

dB

closed loop voltage gain

25

26

27

dB

noise output voltage

−

120

µV

DC output offset voltage

−−

100

mV

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA8566Q

DBS17P

plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)

SOT243-1