2002 Mar 05 2
Philips Semiconductors Product specification
4×40 W BTL quad car radio power
amplifier 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
•Pincompatible 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
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VPoperating supply voltage 6 14.4 18 V
IORM repetitive peak output current −−7.5 A
Iq(tot) total quiescent current −200 −mA
Istb standby current −0.2 100 µA
Isw switch-on current −−80 µA
Ziinput impedance 25 30 −kΩ
Po(EIAJ) EIAJ output power THD =maximum −40 −W
SVRR supply voltage ripple rejection Rs=0Ω−50 −dB
αcs channel separation Rs=10kΩ−50 −dB
Gv(cl) closed-loop voltage gain 33 34 35 dB
Vn(o) noise output voltage Rs=0Ω −−170 µV
VOSDC output offset voltage MUTE −−80 mV
∆VOSdelta DC output offset voltage ON ↔MUTE −−80 mV
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TDA8571J DBS23P plasticDIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm) SOT411-1