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INTEGRATED CIRCUITS
TDA1557Q
2 x 22 W BTL stereo car radio power amplifier with speaker protection
Product specification |
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May 1992 |
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File under Integrated Circuits, IC01 |
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Philips Semiconductors |
Product specification |
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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 VP
·Thermally protected
·Reverse polarity safe
·Capability to handle high energy on outputs (VP = 0)
QUICK REFERENCE DATA
·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.
SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
TYP. |
MAX. |
UNIT |
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VP |
positive supply voltage range |
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operating |
6.0 |
14.4 |
18 |
V |
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non-operating |
- |
- |
30 |
V |
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load dump |
- |
- |
45 |
V |
IORM |
repetitive peak output current |
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- |
- |
4 |
A |
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Itot |
total quiescent current |
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- |
80 |
- |
mA |
Isb |
stand-by current |
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- |
0.1 |
100 |
mA |
Isw |
switch-on current |
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- |
- |
60 |
mA |
ïZIï |
input impedance |
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25 |
- |
- |
kW |
TXTAL |
crystal temperature |
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- |
- |
+150 |
°C |
Stereo application |
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PO |
output power |
THD = 10%; 4 W |
- |
22 |
- |
W |
SVRR |
supply voltage ripple rejection |
RS = 0; f = 100 Hz to 10 kHz |
45 |
- |
- |
dB |
ïDVOï |
DC output offset voltage |
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- |
- |
250 |
mV |
a |
channel separation |
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40 |
- |
- |
dB |
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ïDGvï |
channel unbalance |
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- |
- |
1 |
dB |
Gv |
closed loop voltage gain |
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45 |
46 |
47 |
dB |
ORDERING INFORMATION
EXTENDED TYPE |
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PACKAGE |
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NUMBER |
PINS |
PIN POSITION |
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MATERIAL |
CODE |
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TDA1557Q |
13 |
DIL |
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plastic |
SOT141R |
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Note
1. SOT141-6; 1996 August 23.
May 1992 |
2 |
Philips Semiconductors |
Product specification |
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2 x 22 W BTL stereo car radio power
TDA1557Q
amplifier with speaker protection
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POWER |
3 |
10 |
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mute switch |
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STAGE |
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VP |
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1 |
CM |
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input 1 |
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VA |
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4 |
output 1A |
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30 kΩ |
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183 Ω |
18.1 kΩ |
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POWER |
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mute switch |
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STAGE |
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CM |
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VA |
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6 |
output 1B |
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183 Ω |
18.1 kΩ |
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TDA1557Q |
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VP |
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11 |
mute/stand-by |
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stand-by |
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input |
switch |
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stand-by |
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12 |
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reference |
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reference |
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VA |
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voltage |
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voltage |
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15 kΩ |
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mute |
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switch |
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x1 |
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loudspeaker |
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protection |
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15 kΩ |
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mute |
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reference |
POWER |
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voltage |
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STAGE |
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mute switch |
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13 |
CM |
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input 2 |
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VA |
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9 |
output 2B |
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30 kΩ |
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183 |
18.1 kΩ |
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Ω |
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POWER |
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mute switch |
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STAGE |
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CM |
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input |
VA |
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7 |
output 2A |
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reference |
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voltage |
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183 |
18.1 kΩ |
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Ω |
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2 |
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5 |
8 |
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MCD324 - 1 |
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signal ground |
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power ground |
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Fig.1 Block diagram.
May 1992 |
3 |
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