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STMicroelectronics Electronic Components Datasheet

TDA7572 Datasheet

200W mono bridge PWM amplifier

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TDA7572
200W mono bridge PWM amplifier with built-in step-up converter
Preliminary Data
Features
Input stage and gain compressor
www.DataSheet4U.comOver-modulation protection and current limiting
Modulator
DAC
Step-up
Mode control
Diagnostics / safety
Power control
Description
TDA7572 is a highly integrated, highly versatile,
semi-custom IC switch mode audio amplifier. It
integrates audio signal processing and power
amplification tailored for standalone remote bass
box applications, while providing versatility for full
bandwidth operation in either automotive or
consumer audio environments. It's configured as
one full bridge channel, using two clocked PWM
modulators driving external, complementary
FET's.
HiQUAD-64
Broad operating voltage is supported, allowing
operation from both 14V and 42V automotive
power buses, as well as from split supplies for
consumer electronics use.
A current mode control boost converter controller
is provided to allow high power operation in a 14V
environment. Turn-on and turn-off transients are
minimized by soft muting/unmuting and careful
control of offsets within the IC.
Digital Audio input is supported by an integrated
one channel DAC. Sophisticated diagnostics and
protection provide fault reporting via I2C and
power shutdown for safety related faults.
TDA7572 is packaged in a HiQUAD-64 package.
Table 1.
Device summary
Order code
TDA7572
Package
HiQUAD-64
Packing
Tray
September 2007
Rev 1
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/64
www.st.com
1


STMicroelectronics Electronic Components Datasheet

TDA7572 Datasheet

200W mono bridge PWM amplifier

No Preview Available !

Contents
Contents
TDA7572
1
2
3
www.DataSheet4U.com
4
5
6
2/64
Detailed features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Interface description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.1 Operating voltage and current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.2 Under voltage lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3.3 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.4 Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.5 Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3.6 Gate drive and output stage control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3.7 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.4 Voltage booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4.1 Digital to analog converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.4.2 I/O pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4.3 Op. amp. cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4.4 Shunt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4.5 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
I2C and mode control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.1 Input control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2 Faults 1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3 Faults 2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.4 Control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.5 Modulator register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.6 Testing register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Input stage and gain compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.1 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37


Part Number TDA7572
Description 200W mono bridge PWM amplifier
Maker STMicroelectronics
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TDA7572 Datasheet PDF





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