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TDA8571J Datasheet PDF : 21 Pages
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Philips Semiconductors
4 × 40 W BTL quad car radio power
ampliï¬er
Product speciï¬cation
TDA8571J
FEATURES
• Requires very few external components
• High output power
• Low output offset voltage
• Fixed gain
• Diagnostic facility (distortion, short-circuit and
temperature pre-warning)
• Good ripple rejection
• Mode select switch (operating, mute and standby)
• Load dump protection
• Short-circuit safe to ground and to VP and across the
load
• Low power dissipation in any short-circuit condition
• Thermally protected
• Reverse polarity safe
• Electrostatic discharge protection
• No switch-on/switch-off plop
• Flexible leads
• Low thermal resistance
• Pin compatible with the TDA8568Q, except for the gain.
GENERAL DESCRIPTION
The TDA8571J is a integrated class-B output amplifier
contained in a 23-lead Single-In-Line (SIL) plastic power
package. It contains four amplifiers in a BTL configuration,
each with a gain of 34 dB. The output power is 4 × 40 W
(EIAJ) into a 4 Ω load.
APPLICATIONS
• Primarily developed for car radio applications.
QUICK REFERENCE DATA
SYMBOL
VP
IORM
Iq(tot)
Istb
Isw
Zi
Po(EIAJ)
SVRR
αcs
Gv(cl)
Vn(o)
VOS
∆VOS
PARAMETER
operating supply voltage
repetitive peak output current
total quiescent current
standby current
switch-on current
input impedance
EIAJ output power
supply voltage ripple rejection
channel separation
closed-loop voltage gain
noise output voltage
DC output offset voltage
delta DC output offset voltage
CONDITIONS
THD = maximum
Rs = 0 Ω
Rs = 10 kΩ
Rs = 0 Ω
MUTE
ON ↔ MUTE
MIN.
6
−
−
−
−
25
−
−
−
33
−
−
−
TYP.
14.4
−
200
0.2
−
30
40
50
50
34
−
−
−
MAX.
18
7.5
−
100
80
−
−
−
−
35
170
80
80
UNIT
V
A
mA
µA
µA
kΩ
W
dB
dB
dB
µV
mV
mV
ORDERING INFORMATION
TYPE
NUMBER
TDA8571J
PACKAGE
NAME
DESCRIPTION
DBS23P plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm)
VERSION
SOT411-1
2002 Mar 05
2
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