Philips Semiconductors
4 x 11 W single-ended or 2 x 22 W power
amplifier with distortion detector
Product specification
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 VP
• Thermally protected
• Reverse polarity safe
• Capability to handle high energy on outputs (VP = 0 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
PARAMETER
Supply voltage range
operating
Repetitive peak output current
Total quiescent current
Stand-by current
Stereo BTL application
Output power
Supply voltage ripple rejection
Noise output voltage
(RMS value)
Input impedance
DC output offset voltage
Quad single-ended application
Output power
Supply voltage ripple rejection
Noise output voltage
(RMS value)
Input impedance
CONDITIONS
SYMBOL MIN. TYP. MAX. UNIT
VP
6.0
14.4 18.0 V
IORM
−
−
4
A
Itot
−
80
160
mA
Isb
−
0.1
100
µA
RL = 4 Ω; THD = 10% Po
20
22
−
W
RR
48
−
−
dB
RS = 0 Ω
Vno(rms) −
70
−
µV
|ZI|
25
30
38
kΩ
|∆VO|
−
−
100
mV
THD = 10%
RL = 4 Ω
RL = 2 Ω
RS = 0 Ω
Po
−
6
−
W
Po
−
11
−
W
RR
48
−
−
dB
Vno(rms) −
50
−
µV
|ZI|
50
60
75
kΩ
PACKAGE OUTLINE
17-lead SIL-bent-to-DIL; plastic power (SOT243R); SOT243-1; 1996 July 23.
May 1992
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