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PDF TDA7575B Data sheet ( Hoja de datos )
| Número de pieza | TDA7575B | |
| Descripción | 2 x 75W multifunction dual-bridge power amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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TDA7575B
2 x 75W multifunction dual-bridge power amplifier
with integrated digital diagnostics
Features
■ Multipower bcd technology
www.DataSheet4U■.comMOSFET output power stage
■ DMOS power output
■ New Hi-efficiency (class AB)
■ Single-channel 1Ω driving capability
■ High output power capability 2x28W/4Ω @
14.4V, 1KHz, 10% THD
■ Max. output power 2x75W/2Ω, 1x150W/1Ω
■ Single-channel 1Ω driving capability
– 84W undistorted power
– Full I2C bus driving with 4 address
possibilities:
- St-by
- Play/mute
- Gain 12/26dB
- Full digital diagnostic (AC and DC loads)
■ Possibility to disable the I2C bus
■ Differential inputs
■ Full fault protection
■ DC offset detection
■ Two independent short circuit protections
■ Diagnostic on clipping detector with selectable
threshold (2%/10%)
■ Clipping detector as diagnostic pin when I2C
bus is disabled
■ St-by/mute pins
■ ESD protection
PowerSO36 (Slug up)
Flexiwatt 27
Description
The TDA7575B is a new MOSFET dual bridge
amplifier specially intended for car radio
applications. Thanks to the DMOS output stage
the TDA7575B has a very low distortion allowing
a clear powerful sound.
Among the features, its superior efficiency
performance coming from the internal exclusive
structure, makes it the most suitable device to
simplify the thermal management in high power
sets.The dissipated output power under average
listening condition is in fact reduced up to 50%
when compared to the level provided by
conventional class AB solutions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I2C bus. The TDA7575B has also the
possibility of driving loads down to 1Ω paralleling
the outputs into a single channel. It is also
possible to disable the I2C and control the
TDA7575B by means of the usual ST-BY and
MUTE pins.
Table 1. Device summary
Order code
Package
Packing
TDA7575B
TDA7575BPD
TDA7575BPDTR
Flexiwatt 27
PowerSSO36 (slug up)
PowerSSO36 (slug up)
Tube
Tube
Tape and reel
October 2007
Rev 1
1/32
www.st.com
1
1 page  
TDA7575B
1 Block and pins diagrams
Block and pins diagrams
www.DataSheet4U.com
Figure 1. Block diagram
ADDRESS
A B CLK DATA
VS
VCC
CD_OUT
IN1+
IN1-
I2CBUS
IN2+
CLIP
DETECTOR
SHORT CIRCUIT
PROTECTION
OUT1+
OUT1-
OUT2+
IN2- OUT2-
SHORT CIRCUIT
PROTECTION
I2C EN
SVR ST-BY/HE S_GND PW_GND TAB 1Ω MUTE
D01AU1269
Figure 2. Pin connections (top view)
OUT1+
OUT1+
VCC
VCC
B
PWGND
PWGND
OUT1-
OUT1-
OUT2-
OUT2-
PWGND
PWGND
A
VCC
VCC
OUT2+
OUT2+
36 1
35 2
34 3
33 4
32 5
31 6
30 7
29 8
28 9
27 10
26 11
25 12
24 13
23 14
22 15
21 16
20 17
19 18
D01AU1270
PowerSO-36 (slug up)
TAB
IN1+
IN1-
MUTE
ST_BY
SGND
DATA
CK
N.C.
N.C.
N.C.
N.C.
SVR
CD-OUT
1-OHM
I2C-EN
IN2-
IN2+
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Flexiwatt 27
TAB
PWGND
A
OUT2+
N.C.
OUT2-
VCC
IN2+
IN2-
I2CEN
1Ω
CD_OUT
SVR
CK
DATA
SGND
STT-BY
MUTE
IN1-
IN1+
VCC
OUT1-
N.C.
OUT1+
B
PWGND
TAB
D03IN1512
5/32
5 Page 
TDA7575B
Electrical characteristics curves
3 Electrical characteristics curves
Figure 3. Quiescent drain current vs. supply Figure 4. Output power vs. supply voltage
voltage
Id (mA)
Po (W)
160
150
140
130
www.DataSheet4U.com
120
110
100
90
80
70
Vi=0
NO LOADS
80
75
70
65 RL=4 Ohm
60 f=1 KHz
55
50
45
40
35
30
25
20
15
10
5
Po-max
THD=10%
THD=1%
8 10 12 14 16 18 8 9 10 11 12 13 14 15 16 17 18
Vs (V)
Vs (V)
Figure 5. Output power vs. supply voltage Figure 6. Output power vs. supply voltage
Po (W)
130
120
110
100 RL=2 Ohm
90 f=1 KHz
80
70
60
50
40
30
20
10
0
8 9 10
11
12 13 14
Vs (V)
Po-max
THD=10%
THD=1%
15 16 17
Figure 7. Distortion vs. output power
Po (W)
130
120
110
100 RL=2 Ohm
90 f=1 KHz
80
70
60
50
40
30
20
10
0
18 8 9 10 11
12 13 14
Vs (V)
Po-max
THD=10%
THD=1%
15 16 17
Figure 8. Distortion vs. output power
18
THD (%)
10
HI-EFF mode
Vs=14.4V
RL=4 Ohm
1
THD (%)
10
HI-EFF mode
Vs=14.4V
RL=2 Ohm
1
0.1
0.01
0.1
f=10 KHz
f=1 KHz
1
Po (W)
10
0.1
0.01
100 0.1
f=10 KHz
f=1 KHz
1
Po (W)
10
100
11/32
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA7575B.PDF ] | |
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