TDA7575.pdf

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TDA7575PD
MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER
WITH INTEGRATED DIGITAL DIAGNOSTICS
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DMOS POWER OUTPUT
NON-SWITCHING HI-EFFICIENCY
SINGLE-CHANNEL 1Ω DRIVING CAPABILITY
HIGH OUTPUT POWER CAPABILITY 2x28W/
4Ω @ 14.4V, 1KHZ, 10% THD, 2x40W/4Ω EIAJ
MAX. OUTPUT POWER 2x75W/2Ω, 1x150W/1Ω
SINGLE-CHANNEL 1Ω DRIVING CAPABILITY
– 84W UNDISTORTED POWER
– FULL I
2
C BUS DRIVING WITH 4 ADDRESS
POSSIBILITIES:
– ST-BY, PLAY/MUTE, GAIN 12/26dB, FULL
DIGITAL DIAGNOSTIC
POSSIBILITY TO DISABLE THE I2C
DIFFERENTAL INPUTS
FULL FAULT PROTECTION
DC OFFSET DETECTION
TWO INDEPENDENT SHORT CIRCUIT
PROTECTIONS
CLIPPING DETECTOR PIN WITH
SELECTABLE THRESHOLD (2%/10%)
ST-BY/MUTE PINS
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
PowerSO36 (Slug up)
ORDERING NUMBER: TDA7575PD
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 simpli-
fy the thermal management in high power sets.The
dissipated output power under average listening con-
dition is in fact reduced up to 50% when compared to
the level provided by conventional class AB solu-
tions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I
2
C bus. The TDA7575PD has also the
possibility of driving loads down to 1Ω paralleling the
outputs into a single channel. It is also possible to dis-
able the I
2
C and control the TDA7575PD by means of
the usual ST-BY and MUTE pins.
V
S
DESCRIPTION
The TDA7575PD is a new BCD technology DUAL
BRIDGE type of car radio amplifier in PowerSO36
package specially intended for car radio applications.
Thanks to the DMOS output stage the TDA7575PD
BLOCK DIAGRAM
ADDRESS
A
B
CLK DATA
VCC
CD_OUT
I
2
CBUS
IN1+
CLIP
DETECTOR
OUT1+
IN1-
OUT1-
SHORT CIRCUIT
PROTECTION
IN2+
OUT2+
IN2-
SHORT CIRCUIT
PROTECTION
OUT2-
I
2
C EN
SVR
ST-BY/HE
S_GND
PW_GND
TAB
1Ω
MUTE
D01AU1269
March 2004
1/17
TDA7575PD
PIN CONNECTION
(Top view)
OUT1+
OUT1+
VCC
VCC
B
PWGND
PWGND
OUT1-
OUT1-
OUT2-
OUT2-
PWGND
PWGND
A
VCC
VCC
OUT2+
OUT2+
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
D01AU1270
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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+
ABSOLUTE MAXIMUM RATINGS
Symbol
V
op
V
S
V
peak
V
CK
V
DATA
I
O
I
O
P
tot
T
stg
, T
j
Operating Supply Voltage
DC Supply Voltage
Peak Supply Voltage (for t = 50ms)
CK pin Voltage
Data Pin Voltage
Output Peak Current (not repetitive t = 100ms)
Output Peak Current (repetitive f > 10Hz)
Power Dissipation T
case
= 70°C
Storage and Junction Temperature
Parameter
Value
18
28
50
6
6
8
6
86
-55 to 150
Unit
V
V
V
V
V
A
A
W
°C
THERMAL DATA
Symbol
Rth j-case
Parameter
Thermal Resistance Junction-case
Max
Value
1
Unit
°C/W
2/17
TDA7575PD
ELECTRICAL CHARACTERISTCS:
(V
S
=14.4V; f=1KHz; R
L
=4Ω; Tamb= 25°C unless otherwise specified)
Symbol
POWER AMPLIFIER
V
S
I
d
Po
Supply Voltage Range
Total Quiescent Drain Current
Output Power
EIAJ (V
S
= 13.7V)
THD = 10%
THD = 1%; BTL MODE
R
L
= 2Ω; EIAJ (V
S
= 13.7V)
R
L
= 2Ω; THD 10%
R
L
= 2Ω; THD 1%
R
L
= 2Ω; MAX POWER
Single channel configuration
(1Ω pin >2.5V); R
L
= 1Ω;
EIAJ (V
S
= 13.7V)
THD 3%
MAX POWER
THD
Total Harmonic Distortion
P
O
= 1-12W; STD MODE
HE MODE; P
O
= 1-2W
HE MODE; P
O
= 4-8W
P
O
= 1-12W, f = 10kHz
R
L
= 2; HE MODE; Po = 3W
Single channel configuration
(1Ω pin >2.5V); R
L
= 1; P
O
= 4-30W
C
T
R
IN
G
V1
∆G
V1
G
V2
∆G
V2
E
IN1
E
IN2
SVR
BW
A
SB
I
SB
A
M
V
OS
V
AM
CMRR
Cross Talk
Input Impedance
Voltage Gain 1 (default)
Voltage Gain Match 1
Voltage Gain 2
Voltage Gain Match 2
Output Noise Voltage Gain 1
Output Noise Voltage Gain 2
Supply Voltage Rejection
Power Bandwidth
Stand-by Attenuation
Stand-by Current Consumption
Mute Attenuation
Offset Voltage
Min. Supply Mute Threshold
Input CMRR
V
CM
= 1Vpk-pk; Rg = 0
Ω
Mute & Play
80
-45
7
50
Rg = 600Ω; Gv = 26dB
filter 20 to 22kHz
Rg = 600Ω; Gv = 12dB
filter 20 to 22kHz
f = 100Hz to 10kHz; V
r
= 1Vpk;
R
g
= 600Ω
(-3dB)
50
100
90
100
2
90
0
7.5
60
45
8
20
R
g
= 600Ω; P
O
= 1W
60
60
25
-1
11
-1
8
50
35
25
60
45
70
130
40
28
22
65
50
37
75
18
200
V
mA
W
W
W
W
W
W
W
Parameter
Test Condition
Min.
Typ.
Max.
Unit
125
80
140
130
84
150
0.03
0.03
0.5
0.15
0.03
0.02
75
100
26
0
12
0
40
15
60
130
27
1
13
1
60
25
0.1
0.1
0.5
0.5
0.1
W
W
W
%
%
%
%
%
%
dB
KΩ
dB
dB
dB
dB
µV
µV
dB
KHz
dB
µA
dB
mV
V
dB
3/17
TDA7575PD
ELECTRICAL CHARACTERISTCS:
(continued)
Symbol
V
MC
SR
∆V
PM
∆V
TO
T
ON
T
OFF
V
OFF
V
SB
V
HE
I
O
Parameter
Maximum common mode input
level
Slew Rate
Mute/Unmute Transient
Mute/Stand-by Transient
Turn on Delay
Turn off Delay
St-By pin for St-By
St-By pin for standard bridge
St-By pin for Hi-eff
St-By pin Current
St-By Pin Current
V
m
V
m
I
m
I
m
V
I2C
V
I2C
I2C
I2C
V
1OHM
V
1OHM
I
1OHM
I
1OHM
La
Ha
Ia
Ia
Lb
Hb
Ib
Ib
T
W
T
PI
I
CDH
B Pin Current (ST-BY)
B Pin Current (Operative)
Thermal warning
Thermal Protection intervention
Clip Pin High Leakage Current
CD off, 0V < V
CD
< 5.5V
-15
A Pin Current (ST-BY)
A Pin Current (Operative)
B Pin Voltage
Mute pin voltage for mute mode
Mute pin voltage for play mode
Mute pin current (ST_BY)
Mute pin current (operative)
I2C pin voltage for I2C disabled
I2C pin voltage for I2C enabled
I2C pin current (stby)
I2C pin current (operative)
1OHM pin voltage for 2ch mode
1OHM pin voltage for 1ohm
mode
1OHM pin current (stby)
1OHM pin current (operative)
A Pin Voltage
0V < 1OHM <18V, V
stby
< 1.5V
1OHM <18V, V
stby
> 3.5V
Low logic level
High logic level
0V < A < 18V, V
stby
< 1.5V
A<18V, V
stby
> 3.5V
Low logic level
High logic level
0V < B < 18V, V
stby
< 1.5V
B < 18V, V
stby
> 3.5V
0V < I2C EN < 18V, V
stby
< 1.5V
I2C EN <18V, V
stby
>3.5V
V
mute
= 0V, V
stby
< 1.5V
0V < V
mute
< 18V, V
stby
> 3.5V
0
2.5
-5
7
0
2.5
-5
7
0
2.5
-5
7
0
2.5
-5
7
0
11
150
170
0
15
0
11
0
11
0
11
1.5 < V
stby/HE
< 18V
V
stby
< 1.5V
A-weighted
A-weighted
D2 (IB1) 0 to 1
D2 (IB1) 1 to 0
0
3.5
7
7
-10
0
3.5
-5
0
65
160
0
f = 1kHz
1.5
-100
-100
4
0
0
15
15
100
100
40
40
1.5
5
18
200
10
1.5
18
5
100
1.5
18
5
15
1.5
18
5
15
1.5
18
5
15
1.5
18
5
15
Test Condition
Min.
Typ.
Max.
1
Unit
Vrms
V/µs
mVpp
mVpp
ms
ms
V
V
V
µA
µA
V
V
µA
µA
V
V
µA
µA
V
V
µA
µA
V
V
µA
µA
V
V
µA
µA
°C
°C
µA
4/17
TDA7575PD
ELECTRICAL CHARACTERISTCS:
(continued)
Symbol
I
CDL
CD
Parameter
Clip Pin Low Sink Current
Clip detect THD level
Test Condition
CD on; V
CD
< 300mV
D0 (IB1) = 0
D0 (IB1) = 1
Min.
1
0.8
5
1.3
10
2.5
15
Typ.
Max.
Unit
mA
%
%
(*) ST-BY Pin high enables I2C bus; ST-BY Pin low puts the device in ST-BY condition.(see “prog” for more details)
TURN ON DIAGNOSTICS
(Power Amplifier Mode)
Pgnd
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)
Normal operation
thresholds.(Within these limits,
the Output is considered
without faults).
Shorted Load det.
Open Load det.
Normal Load det.
130
1.5
70
Power Amplifier in st-by condition
1.2
V
Pvs
V
s
-0.9
V
Pnop
1.8
V
s
-1.5
V
Lsc
Lop
Lnop
0.5
Ω
Ω
Ω
TURN ON DIAGNOSTICS
(Line Driver Mode)
Pgnd
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)
Normal operation
thresholds.(Within these limits,
the Output is considered
without faults).
Shorted Load det.
Open Load det.
Normal Load det.
400
4.5
200
Power Amplifier in st-by
1.2
V
Pvs
V
s
-0.9
V
Pnop
1.8
V
s
-1.5
V
Lsc
Lop
Lnop
1.5
Ω
Ω
Ω
PERMANENT DIAGNOSTICS
(Power Amplifier Mode or Line Driver Mode)
Pgnd
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)
Normal operation
thresholds.(Within these limits,
the Output is considered
without faults).
Shorted Load det.
Pow. Amp. mode
Line Driver mode
Power Amplifier in Mute or Play
condition, one or more short circuits
protection activated
V
s
- 0.9
1.2
V
Pvs
V
Pnop
1.8
V
s
-1.5
V
Lsc
0.5
1.5
Ω
Ω
5/17

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