Philips Semiconductors
Product specication
I2C-bus controlled 4 45 Watt power
amplier and multiple voltage regulator
TDA8589J; TDA8589xJ
FEATURES
Ampliers
I2C-bus control
Can drive a 2 load with a battery voltage of up to 16 V
and a 4 load with a battery voltage of up to 18 V
DC load detection: open, short and present
PROTECTION
AC load (tweeter) detection
If connection to the battery voltage is reversed, all
regulator voltages will be zero
Programmable clip detect 1 % or 3%
Programmable thermal protection pre-warning
Independent short-circuit protection per channel
Low gain line driver mode (20 dB)
Able to withstand voltages at the output of up to 18 V
(supply line may be short-circuited)
Thermal protection to avoid thermal breakdown
Load-dump protection
Loss-of-ground and open VP safe
Regulator outputs protected from DC short-circuit to
ground or to supply voltage
All outputs protected from short-circuit to ground, to VP,
or across the load
All regulators protected by foldback current limiting
Power switches protected from loss-of-ground.
All pins protected from short-circuit to ground
Soft thermal-clipping to prevent audio holes
Low battery detection.
APPLICATIONS
Voltage regulators
Boost amplifier and voltage regulator for car radios and
CD/MD players.
GENERAL
I2C-bus control
GENERAL DESCRIPTION
Good stability with almost any output capacitor value
Five voltage regulators (microcontroller, display,
mechanical digital, mechanical drive and audio)
Ampliers
The TDA8589 has a complementary quad audio power
amplifier that uses BCDMOS technology. It contains four
amplifiers configured in Bridge Tied Load (BTL) to drive
speakers for front and rear left and right channels. The
I2C-bus allows diagnostic information of each amplifier and
its speaker to be read separately. Both front and both rear
channel amplifiers can be configured independently in line
driver mode with a gain of 20 dB (differential output).
Choice of non-adjustable 3.3 or 5 V microcontroller
supply (REG2) versions reducing risk of overvoltage
damage
Choice of non-adjustable 3.3 or 5 V digital signal
processor supply (REG3) versions reducing risk of
overvoltage damage
Selectable output voltages for regulators 1, 4 and 5
Low dropout voltage PNP output stages
High supply voltage ripple rejection
Low noise for all regulators
Voltage regulators
The TDA8589 has a multiple output voltage regulator with
two power switches.
Two power switches (antenna switch and amplifier
switch)
The voltage regulator contains the following:
Four switchable regulators and one permanently active
regulator (microcontroller supply)
Regulator 2 (microcontroller supply) operational during
load-dump and thermal shut-down
Two power switches with loss-of-ground protection
Low quiescent current (only regulator 2 is operational)
Reset output (push-pull output stage)
Adjustable reset delay time
A reset output that can be used to communicate with a
microcontroller.
The quiescent current has a very low level of 150 A with
only regulator 2 active.
Backup functionality.
2004 Feb 24
2
NXP [ NXP ]
