Philips tda1557q DATASHEETS
INTEGRATED CIRCUITS
DATA SH EET
TDA1557Q
2 x 22 W BTL stereo car radio
power amplifier with speaker
protection
Product specification
File under Integrated Circuits, IC01
May 1992
Philips Semiconductors Product specification
2 x 22 W BTL stereo car radio power
TDA1557Q
amplifier with speaker protection
FEATURES
• Requires very few external components
• High output power
• Low offset voltage at output
• 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 (VP = 0)
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
positive supply voltage range
operating 6.0 14.4 18 V
non-operating −−30 V
load dump −−45 V
IORM repetitive peak output current −−4A
I
tot
I
sb
I
sw
input impedance 25 −−kΩ
Z
I
T
XTAL
total quiescent current − 80 − mA
stand-by current − 0.1 100 µA
switch-on current −−60 µA
crystal temperature −−+150 °C
Stereo application
P
O
SVRR supply voltage ripple rejection R
DC output offset voltage −−250 mV
∆V
O
output power THD = 10%; 4 Ω−22 − W
= 0; f = 100 Hz to 10 kHz 45 −−dB
S
α channel separation 40 −−dB
channel unbalance −−1dB
∆G
v
G
v
closed loop voltage gain 45 46 47 dB
• Protected against electrostatic discharge
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance.
GENERAL DESCRIPTION
The TDA1557Q is a monolithic integrated class-B output
amplifier in a 13-lead single-in-line (SIL) plastic power
package. The device contains 2 × 22 W amplifiers in BTL
configuration and has been primarily developed for car
radio applications.
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
TDA1557Q 13 DIL plastic SOT141R
Note
1. SOT141-6; 1996 August 23.
May 1992 2
PACKAGE
PINS PIN POSITION MATERIAL CODE
Philips Semiconductors Product specification
2 x 22 W BTL stereo car radio power
amplifier with speaker protection
handbook, full pagewidth
VA
18.1 kΩ
VA
18.1 kΩ
V
P
mute switch
mute switch
input 1
input
reference
voltage
1
30 kΩ
183 Ω
183 Ω
stand-by
12
switch
VA
CM
CM
TDA1557Q
POWER
STAGE
POWER
STAGE
stand-by
reference
voltage
TDA1557Q
10
3
V
P
4
output 1A
6
output 1B
11
mute/stand-by
input 2
13
reference
voltage
30 kΩ
input
signal ground
15 kΩ
x1
15 kΩ
183
Ω
183
Ω
2
18.1 kΩ
18.1 kΩ
mute switch
VA
mute switch
VA
mute
reference
voltage
CM
CM
mute
switch
POWER
STAGE
POWER
STAGE
loudspeaker
protection
58
power ground
MCD324 - 1
9
output 2B
7
output 2A
May 1992 3
Fig.1 Block diagram.
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