Philips Semiconductors
Product specification
2 x 22 W BTL stereo car radio power
amplifier with speaker protection
TDA1557Q
• Protected against electrostatic discharge
FEATURES
• No switch-on/switch-off plop
• Flexible leads
• Requires very few external components
• High output power
• Low thermal resistance.
• Low offset voltage at output
• Fixed gain
GENERAL DESCRIPTION
• Good ripple rejection
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.
• 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
SYMBOL
VP
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
positive supply voltage range
operating
6.0
14.4
−
18
30
45
4
V
non-operating
load dump
−
V
−
−
V
IORM
Itot
repetitive peak output current
total quiescent current
stand-by current
−
−
A
−
80
0.1
−
−
mA
µA
µA
kΩ
°C
Isb
−
100
60
−
Isw
switch-on current
−
ZI
input impedance
25
−
−
TXTAL
crystal temperature
−
+150
Stereo application
PO
output power
THD = 10%; 4 Ω
−
22
−
−
W
SVRR
∆VO
α
supply voltage ripple rejection
DC output offset voltage
channel separation
RS = 0; f = 100 Hz to 10 kHz
45
−
−
dB
mV
dB
dB
dB
−
250
−
40
−
−
∆Gv
Gv
channel unbalance
−
1
closed loop voltage gain
45
46
47
ORDERING INFORMATION
PACKAGE
EXTENDED TYPE
NUMBER
PINS
PIN POSITION
MATERIAL
CODE
SOT141R
TDA1557Q
13
DIL
plastic
Note
1. SOT141-6; 1996 August 23.
May 1992
2
NXP [ NXP ]
