May 1992

2

Philips Semiconductors

Product specification

4 x 11 W single-ended or 2 x 22 W power

amplifier with distortion detector

TDA1555Q

GENERAL DESCRIPTION

The TDA1555Q is an integrated class-B output amplifier in a 17-lead single-in-line (SIL) plastic power package.

The circuit contains 4 x 11 W single-ended or 2 x 22 W bridge amplifiers. The device is primarily developed for car radio

applications.

Features

• Requires very few external components

• Flexibility in use − Quad single-ended or stereo BTL

• High output power

• Low offset voltage at outputs (important for BTL)

• Fixed gain

• Good ripple rejection

• Mute/stand-by switch

• Load dump protection

• AC and DC short-circuit-safe to ground and V

P

• Thermally protected

• Reverse polarity safe

• Capability to handle high energy on outputs (V

• Protected against electrostatic discharge

• No switch-on/switch-off plop

• Low thermal resistance

• Identical inputs (inverting and non-inverting)

• Flexible leads

• Distortion detector.

QUICK REFERENCE DATA

PACKAGE OUTLINE

17-lead SIL-bent-to-DIL; plastic power (SOT243R); SOT243-1; 1996 July 23.

PARAMETER

CONDITIONS

SYMBOL

MIN.

TYP.

MAX.

UNIT

Supply voltage range

operating

6.0

14.4

18.0

V

Repetitive peak output current

−−

4A

Total quiescent current

−

80

160

mA

Stand-by current

−

0.1

100

µA

Stereo BTL application

Output power

20

22

−

W

Supply voltage ripple rejection

RR

48

−−

dB

Noise output voltage

(RMS value)

−

70

−µV

Input impedance

253038k

Ω

DC output offset voltage

|

∆V

−−

100

mV

Quad single-ended application

Output power

THD = 10%

−

6

−

W

−

11

−

W

Supply voltage ripple rejection

RR

48

−−

dB

Noise output voltage

(RMS value)

−

50

−µV

Input impedance

506075k

Ω