2002 Jan 14
3
Philips Semiconductors
Preliminary specification
4
×
44 W into 4
Ω
or 4
×
75 W into 2
Ω
quad BTL car radio power amplifier
TDA8591J
1
FEATURES
•
Low quiescent current
•
Low distortion
•
Low output offset voltage
•
Soft thermal clipping to prevent audio holes
•
External mute timer for low start-up plop (also allows a
fast mute function)
•
High output power
•
Operating, mute and standby mode selection by two-pin
or single-pin operation
•
Diagnostic information available:
– Dynamic Distortion Detection (DDD)
– High temperature detection
– Short-circuit detection
– Detection of output offset due to leakage current at
the input
•
No switch-on/switch-off plops when switching between
standby and mute modes or between mute and
operating modes
•
Fast mute with supply voltage drops
•
Package with flexible leads
•
All outputs can withstand short-circuits to ground, to the
positive supply voltage and across the load
•
Pin CP can withstand short-circuits to its adjacent pins,
all other pins can withstand short-circuits to ground and
to the positive supply voltage
•
ESD protection on all pins
•
Thermal protection against junction temperatures
exceeding 150
°
C
•
Load dump protection
•
Protected against open ground pins (loss of ground) and
outputs short-circuited to supply ground
•
All negative outputs are protected against open supply
voltage and output short-circuited to supply voltage
•
Reverse-polarity safe.
2
GENERAL DESCRIPTION
The TDA8591J is a quad BTL audio power amplifier
comprising four independent amplifiers in Bridge Tied
Load (BTL) configuration. Each amplifier has a gain of
26 dB and supplies an output power of 75 W (EIAJ) into a
2
Ω
load. The TDA8591J has low quiescent current and is
primarily developed for car audio applications.
3
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8591J
DBS27P
plastic DIL-bent-SIL power package; 27 leads (lead length 7.7 mm)
SOT521-1