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PDF TDA7572 Data sheet ( Hoja de datos )
| Número de pieza | TDA7572 | |
| Descripción | 200W mono bridge PWM amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TDA7572 (archivo pdf) en la parte inferior de esta página. Total 64 Páginas | ||
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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
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1 page  
TDA7572
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
www.DataSheet4UT.caobmle 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin list by argument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pin list by pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating voltage and current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Under voltage lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Gate drive and output stage control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Voltage booster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Digital to analog converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
I/O pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Op. amp. cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Shunt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Analog operating characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power-up mode control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
I2C chip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Input control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Faults 1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Faults 2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Control register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Modulator register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Testing register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Distortion versus gain step size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Sets the maximum release rate of the gain compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Sets the maximum attack rate of the gain compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Attack/release rate and gain compression effort selection . . . . . . . . . . . . . . . . . . . . . . . . . 39
PWMClock table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Fault handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5/64
5 Page 
TDA7572
Pins description
Table 2. Pin list by argument (continued)
Pin #
Pin name
Description
39
MOD2
Modulator2 Inverting / Summing node
10
HSD2SS
Highside2 Source sense
9
HSD2GD
Highside2 Gate Drive
8
HSD2GS
Highside2 Gate sense
7
6
www.DataSheet4U.com5
4
HB2Out
HB2OutFilt
LSD2GS
LSD2GD
Half-bridge2 output, HSD 1 drain sense, LSD1 Drain Sense
Half bridge2 post-LC filter – for diagnostics
Lowside2 Gate sense
Lowside2 Gate Drive
3
LSD2SS
Lowside2 Source Sense
27
VSM1
Die tab connection to lowest supply voltage – gnd for single ended supplies,
negative supply for split supplies
26
VSM2
Die tab connection to lowest supply voltage – gnd for single ended supplies,
negative supply for split supplies
58
VSM3
Die tab connection to lowest supply voltage – gnd for single ended supplies,
negative supply for split supplies
59
VSM4
Die tab connection to lowest supply voltage – gnd for single ended supplies,
negative supply for split supplies
43
ShuntDriver
Shunt Driver
DC-DC
28
BSTVSense
Voltage feedback input for Voltage Booster
22
BSTSource
Boost Converter NFET Source
21
BSTGate
Boost Converter NFET gate drive
23
CSense
Inverting input for Booster Current Sensing and Digital Test Enable (operating
when is more then about 3V under the V14 pin level)
24
V14Sense
Non-inverting input for Booster Current Sensing
25 V14 Power for Boost converter gate drive and Output LSD’s
Oscillator
41
CLKIN/Out
Clock input
42
DITH
Dither capacitor
40
OscOut
Oscillator output
Diagnostics / Bus
62 I2CDATA/AttackSel
63 I2CLK
I2C data (I2C mode)
Compressor aggressiveness selection (non-bus mode)
I2C Clock
11/64
11 Page | ||
| Páginas | Total 64 Páginas | |
| PDF Descargar | [ Datasheet TDA7572.PDF ] | |
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