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Número de pieza TDA7577BLV
Descripción 2 x 75 W dual-bridge power amplifier
Fabricantes STMicroelectronics　
Logotipo STMicroelectronics Logotipo



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No Preview Available ! TDA7577BLV Hoja de datos, Descripción, Manual

TDA7577BLV
2 x 75 W dual-bridge power amplifier with I2C complete diagnostics
and "start-stop" profile (6 V operation)
Datasheet - production data
'!0'03
PowerSO36 (slug-up)
'!0'03
Flexiwatt27 (vertical)
'!0'03
Flexiwatt27 (horizontal)
'!0'03
Flexiwatt27 (SMD)
Features
MOSFET (DMOS) output power stage
High-efficiency (class SB)
Single-channel 1 Ω driving capability
– 84 W undistorted power
High output power capability 2 x 28 W / 4 Ω @
14.4 V, 1 kHz, 10 % THD
Max. output power 2 x 75 W / 2 Ω,
1 x 150 W / 1 Ω
Full I2C bus driving with 4 addresses
Low voltage (6 V) operation (i.e. 'start-stop')
Gain 16/26 dB
Full digital diagnostic (AC and DC loads)
Legacy mode (operation without I2C)
Differential inputs
Fault detection through integrated diagnostics
DC offset detection
Two independent short circuit protections
Diagnostic on clipping detector with selectable
threshold (2 % / 10 %)
Clipping detector pin
ST-BY and MUTE pins
ESD protection
Very robust against misconnections
Description
The TDA7577BLV is a new MOSFET dual bridge
amplifier specially intended for car radio
applications. Thanks to the DMOS output stage
the TDA7577BLV has a very low distortion
allowing a clear powerful sound, together with
high output power capability.
It is a very flexible device capable to support the
most demanding specifications in terms of power
dissipation and battery transitions: its superior
efficiency performance, coming from the internal
exclusive structure, can reduce the dissipated
output power up to the 50 % (when compared to
conventional class AB solutions). Moreover it is
compliant to the recent OEM specifications
thanks to the capability to work down to 6 V
('start-stop' compatibility).
This device is also equipped with a full diagnostic
array that communicates the status of each
speaker through the I2C bus. TDA7577BLV can
also drive 1 Ω loads (with parallel connection of
the outputs).
It is possible also to exclude the I2C bus interface,
controlling the device by means of the usual ST-
BY and MUTE pins.
Table 1. Device summary
Order code
Package
Packing
TDA7577BLV
TDA7577BLVPD
TDA7577BLVPDTR
Flexiwatt 27
(vertical)
PowerSO36
PowerSO36
Tube
Tube
Tape and reel
TDA7577BLVH
TDA7577BLVSM
Flexiwatt 27
(horizontal)
Flexiwatt 27
(SMD)
Tube
Tube
January 2015
This is information on a product in full production.
DocID025375 Rev 5
1/43
www.st.com

1 page




TDA7577BLV pdf
TDA7577BLV
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuit (TDA7577BLVPD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Quiescent drain current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output power vs. supply voltage (4 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output power vs. supply voltage (2 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output power vs. supply voltage (1 Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (4 Ω, STD mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (2 Ω, STD mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Distortion vs. output power (2 Ω, HI-EFF mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Distortion vs. output power (1 Ω, STD mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Distortion vs. frequency (4 Ω load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Distortion vs. frequency (2 Ω load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Distortion vs. frequency (1 Ω load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CMRR vs. frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cross talk vs frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power dissipation vs. average Po (2 Ω, STD mode, sine wave) . . . . . . . . . . . . . . . . . . . . 15
Power dissipation vs. Po (2 Ω, STD mode, audio program simulation) . . . . . . . . . . . . . . . 15
Power dissipation vs. average Po (2Ω, HI-EFF mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power dissipation vs. Po (1 Ω, STD mode, audio program simulation) . . . . . . . . . . . . . . . 15
ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 16
Turn-on diagnostic: working principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SVR and output behavior - case 1: without turn-on diagnostic . . . . . . . . . . . . . . . . . . . . . . 17
SVR and output pin behavior - case 2: with turn-on diagnostic . . . . . . . . . . . . . . . . . . . . . 18
Short circuit detection thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Load detection thresholds - high gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Load detection thresholds - high gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Restart timing without diagnostic enable (permanent) each 1ms time,
a sampling of the fault is done . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Restart timing with diagnostic enable (permanent). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Current detection high: load impedance |Z| vs. output peak voltage . . . . . . . . . . . . . . . . . 21
Current detection low: load impedance |Z| vs. output peak voltage . . . . . . . . . . . . . . . . . . 21
Worst case battery cranking curve sample 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Worst case battery cranking curve sample 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Upwards fast battery transitions diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
High efficiency - basic structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Data validity on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Timing diagram on the I2C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Timing acknowledge clock pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PowerSO-36 (slug up) package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Flexiwatt 27 (vertical) package mechanical drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Flexiwatt 27 (horizontal) package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Flexiwatt 27 (SMD) package mechanical drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DocID025375 Rev 5
5/43
5

5 Page





TDA7577BLV arduino
TDA7577BLV
Electrical specifications
Table 4. Electrical characteristics (continued)
Symbol
Parameter
Test condition
Min.
1Ω pin voltage for 2ch mode
V1Ω 1Ω pin voltage for 1 Ω mode
-
-
1Ω pin current (standby)
I11Ω pin current (operative)
La
A pin voltage
Ha
0 V < 1 Ω <18 V, Vs-tby < 1.2 V
1 Ω < 18 V, Vs-tby > 2.6 V
Low logic level
High logic level
A pin current (ST-BY)
Ia
A pin current (operative)
Lb
B pin voltage
Hb
0 V < A < 18 V, Vst-by < 1.2 V
A < 18 V, Vst-by > 2.6 V
Low logic level
High logic level
B pin current (ST-BY)
Ib
B pin current (operative)
ASB Standby attenuation
AM Mute attenuation
0V < B < 18 V, Vstby < 1.2 V
B < 18 V, Vst-by > 2.6 V
-
-
Turn on diagnostics (Power amplifier mode)
0
2.5
-5
7
0
2.5
-5
7
0
2.5
-5
7
90
80
Pgnd
Pvs
Pnop
Lsc
Lop
Lnop
Short to GND det. (below this limit,
the Output is considered in Short
Circuit to GND)
Power amplifier in standby
condition
Short to Vs det. (above this limit, the
Output is considered in Short Circuit -
to VS)
Normal operation
thresholds.(Within these limits, the -
Output is considered without faults).
Shorted load det.
-
Open load det.
-
Normal load det.
-
-
Vs -
0.9
1.8
-
85
1.5
Turn on diagnostics (Line driver mode)
Pgnd
Pvs
Pnop
Lsc
Lop
Short to GND det. (below this limit,
the Output is considered in Short
Circuit to GND)
Short to Vs det. (above this limit, the
Output is considered in Short Circuit
to VS)
Power amplifier in standby
Normal operation
thresholds.(Within these limits, the
Output is considered without faults).
Shorted load det.
Open load det.
-
Vs -
0.9
1.8
-
330
Typ.
-
-
-
13
-
-
-
13
-
-
-
13
100
100
-
-
-
-
-
-
-
-
-
-
-
Max.
1.5
18
5
18
1.5
18
5
18
1.5
18
5
18
-
-
1.2
-
Vs -
1.5
0.5
45
1.2
-
Vs -
1.5
1.5
-
Unit
V
V
μA
μA
V
V
μA
μA
V
V
μA
μA
dB
dB
V
V
V
Ω
Ω
Ω
V
V
V
Ω
Ω
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11/43
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