TDA7850
4 x 50 W MOSFET quad bridge power amplifier
Features
■
High output power capability:
– 4 x 50 W/4 max.
– 4 x 30 W/4 @ 14.4 V, 1 kHz, 10 %
– 4 x 80 W/2 max.
– 4 x 55 W/2 @ 14.4V, 1 kHz, 10 %
■
MOSFET output power stage
■
Excellent 2 driving capability
■
Hi-Fi class distortion
■
Low output noise
■
ST-BY function
■
Mute function
■
Automute at min. supply voltage detection
■
Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors
■
On board 0.35 A high side driver
Flexiwatt25
(Vertical)
Flexiwatt25
(Horizontal)
■
ESD
Protections:
Description
■
Output short circuit to gnd, to Vs, across the
load
■
Very inductive loads
■
Overrating chip temperature with soft thermal
limiter
■
Output DC offset detection
■
Load dump voltage
■
Fortuitous open gnd
■
Reversed battery
The TDA7850 is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt 25 package designed for high power car
radio. The fully complementary P-Channel/NChannel output structure allows a rail to rail
output voltage swing which, combined with high
output current and minimized saturation losses
sets new power references in the car-radio field,
with unparalleled distortion performances.
The TDA7850 integrates a DC offset detector.
Table 1.
Device summary
Order code
Package
Packing
TDA7850
Flexiwatt25 (Vertical)
Tube
TDA7850H
Flexiwatt25 (Horizontal
Tube
September 2013
Rev 6
1/18
www.st.com
1
Contents
TDA7850
Contents
1
Block diagram and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
3.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1
SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3
Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4
DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.5
Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/18
TDA7850
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3/18
List of figures
TDA7850
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.
4/18
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Components and top copper layer of the Figure 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Bottom copper layer Figure 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output power vs. supply voltage (RL = 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output power vs. supply voltage (RL = 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Distortion vs. output power (RL = 4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Distortion vs. output power (RL = 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Distortion vs. frequency (RL = 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Distortion vs. frequency (RL = 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power dissipation and efficiency vs. output power (RL = 4, SINE) . . . . . . . . . . . . . . . . . 12
Power dissipation and efficiency vs. output power (RL = 2, SINE) . . . . . . . . . . . . . . . . . 12
Power dissipation vs. output power (RL = 4, audio program simulation) . . . . . . . . . . . . . 13
Power dissipation vs. output power (RL = 2, audio program simulation) . . . . . . . . . . . . . 13
ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 13
Flexiwatt25 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 15
Flexiwatt25 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 16
TDA7850
Block diagram and application circuit
1
Block diagram and application circuit
1.1
Block diagram
Figure 1.
Block diagram
Vcc1
Vcc2
470μF
100nF
ST-BY
MUTE
HSD
HSD/VOFF_DET
OUT1+
OUT1-
IN1
PW-GND
0.1μF
OUT2+
IN2
OUT20.1μF
PW-GND
OUT3+
IN3
OUT30.1μF
PW-GND
OUT4+
IN4
OUT40.1μF
PW-GND
AC-GND
SVR
0.47μF
TAB
S-GND
47μF
D94AU158D
1.2
Standard test and application circuit
Figure 2.
Standard test and application circuit
C8
0.1μF
C7
2200μF
Vcc1-2
Vcc3-4
6
R1
20
4
ST-BY
10K
R2
9
C9
1μF
8
22
MUTE
47K
C10
1μF
5
C1
2
11
IN1
12
17
C2 0.1μF
18
IN3
OUT3
19
15
C3 0.1μF
21
14
IN4
C4 0.1μF
OUT2
3
0.1μF
IN2
OUT1
7
S-GND
24
13
16
C5
0.47μF
OUT4
23
10
SVR
C6
47μF
25
1
HSD/OD
R3
TAB
*)
*) R3 = 10kΩ to be placed when pin 25 is used as offset detector.
D95AU335C
5/18
Pin description
2
TDA7850
Pin description
Figure 3.
Pin connection (top view)
TAB
1
P-GND2
OUT2ST-BY
OUT2+
VCC
OUT1P-GND1
OUT1+
SVR
IN1
Vertical
IN2
S-GND
IN4
IN3
AC-GND
OUT3+
P-GND3
OUT3VCC
OUT4+
MUTE
OUT4P-GND4
HSD
25
D94AU159A
TAB
1
P-GND2
OUT2ST-BY
OUT2+
VCC
OUT1P-GND1
OUT1+
SVR
IN1
IN2
Horizontal
S-GND
IN4
IN3
AC-GND
OUT3+
P-GND3
OUT3VCC
OUT4+
MUTE
OUT4P-GND4
HSD
25
D06AU1655
6/18
TDA7850
Electrical specifications
3
Electrical specifications
3.1
Absolute maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Value
Unit
Operating supply voltage
18
V
VS (DC)
DC supply voltage
28
V
VS (pk)
Peak supply voltage (for t = 50 ms)
50
V
Output peak current
repetitive (duty cycle 10 % at f = 10 Hz)
non repetitive (t = 100 s)
9
10
A
A
Power dissipation Tcase = 70 °C
80
W
Tj
Junction temperature
150
°C
Tstg
Storage temperature
-55 to 150
°C
Value
Unit
1
°C/W
VS
IO
Ptot
3.2
Parameter
Thermal data
Table 3.
Symbol
Rth j-case
Thermal data
Parameter
Thermal resistance junction to case
Max.
7/18
Electrical specifications
TDA7850
3.3
Electrical characteristics
Table 4.
Electrical characteristics
(Refer to the test and application diagram, VS = 14.4 V; RL = 4 ; Rg = 600 ; f = 1 kHz;
Tamb = 25 °C; unless otherwise specified).
Symbol
Iq1
VOS
Parameter
Quiescent current
RL =
Output offset voltage
Play mode / Mute mode
During mute ON/OFF output
offset voltage
dVOS
During Standby ON/OFF output
offset voltage
Gv
Voltage gain
dGv
Channel gain unbalance
Po
Test condition
Output power
ITU R-ARM weighted
see Figure 20
Min.
Typ.
Max.
Unit
100
180
280
mA
±50
mV
-10
+10
mV
-10
+10
mV
27
dB
±1
dB
25
26
VS = 13.2 V; THD = 10 %
VS = 13.2 V; THD = 1 %
VS = 14.4 V; THD = 10 %
VS = 14.4 V; THD = 1 %
23
16
28
20
25
19
30
23
W
VS = 14.4 V; THD = 10 %, 2
50
55
W
50
85
W
Max. output power(1)
VS = 14.4 V; RL = 4
VS = 14.4 V; RL = 2
THD
Distortion
Po = 4W
Po = 15W; RL = 2
eNo
Output noise
"A" Weighted
Bw = 20 Hz to 20 kHz
SVR
Supply voltage rejection
f = 100 Hz; Vr = 1Vrms
50
75
dB
fch
High cut-off frequency
PO = 0.5 W
100
300
KHz
Ri
Input impedance
80
100
120
K
CT
Cross talk
60
70
60
-
dB
ISB
Standby current consumption
Ipin5
Po max.
f = 1 kHz PO = 4 W
f = 10 kHz PO = 4 W
0.006
0.015
0.02
0.03
%
35
50
50
70
V
VST-BY = 1.5 V
20
VST-BY = 0 V
10
ST-BY pin current
VST-BY = 1.5 V to 3.5 V
±1
VSB out
Standby out threshold voltage
(Amp: ON)
VSB in
Standby in threshold voltage
(Amp: OFF)
Mute attenuation
POref = 4 W
80
VM out
Mute out threshold voltage
(Amp: Play)
3.5
VM in
Mute in threshold voltage
(Amp: Mute)
AM
8/18
2.75
A
A
V
1.5
90
V
dB
V
1.5
V
TDA7850
Electrical specifications
Table 4.
Electrical characteristics (continued)
(Refer to the test and application diagram, VS = 14.4 V; RL = 4 ; Rg = 600 ; f = 1 kHz;
Tamb = 25 °C; unless otherwise specified).
Symbol
VAM in
Ipin23
Parameter
Test condition
VS automute threshold
(Amp: Mute)
Att 80 dB; POref = 4 W
(Amp: Play)
Att < 0.1 dB; PO = 0. 5W
Muting pin current
Min.
Typ.
6.5
7
VMUTE = 1.5 V
(Sourced Current)
7
VMUTE = 3.5 V
-5
Max.
Unit
V
7.5
8
12
18
A
18
A
0.6
V
800
mA
HSD section
Vdropout
Iprot
Dropout voltage
IO = 0.35 A; VS = 9 to 16 V
Current limits
0.25
400
Offset detector (Pin 25)
VM_ON
VM_OFF
Mute voltage for DC offset
detection enabled
8
V
VST-BY = 5 V
VOFF
Detected differential output offset VST-BY = 5 V; Vmute = 8 V
±2
V25_T
Pin 25 voltage for detection =
TRUE
VST-BY = 5 V; Vmute = 8 V
VOFF > ±4 V
0
V25_F
Pin 25 Voltage for detection =
FALSE
VST-BY = 5 V; Vmute = 8 V
VOFF > ±2 V
12
±3
6
V
±4
V
1.5
V
V
1. Saturated square wave output.
9/18
Electrical specifications
10/18
Figure 4.
Components and top copper layer of the Figure 2.
Figure 5.
Bottom copper layer Figure 2.
TDA7850
TDA7850
Electrical specifications
3.4
Electrical characteristic curves
Figure 6.
Quiescent current vs. supply
voltage
200
Figure 7.
Po (W)
Id (mA)
80
75
70
Vi = 0
RL = ∞
190
180
Output power vs. supply voltage
(RL = 4)
Po-max
RL= 4Ω
f = 1 KHz
65
60
170
55
50
160
THD= 10%
45
40
150
140
35
30
130
25
20
120
THD= 1%
15
10
110
100
5
8
10
12
14
16
18
Vs (V)
Figure 8.
8
9
10
11
12
Output power vs. supply voltage
(RL = 2)
13
14
15
16
Vs (V)
AC00064
Figure 9.
Po (W)
17
18
AC00064
Distortion vs. output power
(RL = 4)
THD (%)
130
10
120
Po-max
110
VS = 14.4 V
RL = 4Ω
RL= 2Ω
f = 1 KHz
100
1
90
THD=10%
80
f = 10 KHz
70
0.1
60
50
THD=1%
40
f = 1 KHz
0.01
30
20
10
0
8
9
10
11
12
13
14
15
16
Vs (V)
17
18
0.001
0.1
1
Figure 10. Distortion vs. output power
(RL = 2)
10
100
Po (W)
AC00066
AC00067
Figure 11. Distortion vs. frequency
(RL = 4)
THD (%)
THD (%)
10
10
VS = 14.4 V
RL = 2Ω
VS = 14.4 V
RL = 4Ω
Po = 4 W
1
1
f = 10 KHz
0.1
0.1
f = 1 KHz
0.01
0.01
0.001
0.1
0.001
1
10
Po (W)
100
AC00068
10
100
1000
f (Hz)
10000
100000
AC00069
11/18
Electrical specifications
TDA7850
Figure 12. Distortion vs. frequency
(RL = 2)
Figure 13. Crosstalk vs. frequency
CROSSTALK (dB)
THD (%)
-20
10
-30
VS = 14.4 V
RL = 2Ω
Po = 8 W
1
RL = 4Ω
Po = 4 W
Rg = 600Ω
-40
-50
-60
0.1
-70
0.01
-80
0.001
-100
-90
10
100
1000
10000
10
100000
Figure 14. Supply voltage rejection vs.
frequency
10000
100000
AC00071
Figure 15. Output attenuation vs. supply
voltage
OUTPUT ATTN (dB)
0
Rg = 600Ω
Vripple = 1 Vrms
-30
1000
f (Hz)
SVR (dB)
-20
100
AC00070
f (Hz)
RL = 4Ω
Po = 4 W ref
-40
-20
-50
-40
-60
-70
-60
-80
-80
-90
-100
-100
10
100
1000
10000
100000
Figure 16. Power dissipation and efficiency
vs. output power (RL = 4, SINE)
6
7
8
9
10
AC00073
Vs (V)
Figure 17. Power dissipation and efficiency
vs. output power (RL = 2, SINE)
η (%)
Ptot (W)
90
5
AC00072
f (Hz)
η (%)
Ptot (W)
90
180
80
160
70
140
60
60
120
60
50
50
100
50
η
80
VS = 14.4 V
RL = 4 x 4Ω
f = 1 KHz SINE
70
40
VS = 14.4 V
RL = 4 x 2Ω
f = 1 KHz SINE
90
80
η
70
40
80
30
30
60
30
20
20
40
20
10
10
20
10
0
0
0
0
2
4
6
8
10
12
14
Po (W)
12/18
16
18
20
22
24
26
28
30
AC00074
40
Ptot
Ptot
0
0
5
10
15
20
25
Po (W)
30
35
40
45
50
55
AC00075
TDA7850
Electrical specifications
Figure 18. Power dissipation vs. output power Figure 19. Power dissipation vs. output power
(RL = 4, audio program simulation)
(RL = 2, audio program simulation)
Ptot (W)
30
55
VS = 13.2 V
RL = 4 x 4Ω
GAUSSIAN NOISE
25
Ptot (W)
60
VS = 13.2 V
RL = 4 x 2Ω
GAUSSIAN NOISE
50
45
CLIP START
40
20
CLIP START
35
30
15
25
20
10
15
10
5
5
0
1
2
3
4
5
6
AC00076
Po (W)
0
2
4
6
Po (W)
8
10
AC00077
Figure 20. ITU R-ARM frequency response,
weighting filter for transient pop
Output attenuation (dB)
10
0
-10
-20
-30
-40
-50
10
100
1000
Hz
10000
100000
AC00343
13/18
Application hints
4
TDA7850
Application hints
Referred to the circuit of Figure 2.
4.1
SVR
Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF
time sequence and, consequently, plays an essential role in the pop optimization during
ON/OFF transients. To conveniently serve both needs, Its minimum recommended value
is 10µF.
4.2
Input stage
The TDA7850's inputs are ground-compatible and can stand very high input signals (±
8Vpk) without any performance degradation.
If the standard value for the input capacitors (0.1µF) is adopted, the low frequency cut-off
will amount to 16 Hz.
4.3
Standby and muting
Standby and Muting facilities are both CMOS compatible. In absence of true CMOS ports or
microprocessors, a direct connection to Vs of these two pins is admissible but a 470k
equivalent resistance should be present between the power supply and the muting and
ST-BY pins.
R-C cells have always to be used in order to smooth down the transitions for preventing any
audible transient noises.
About the standby, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.
4.4
DC offset detector
The TDA7850 integrates a DC offset detector to avoid that an anomalous DC offset on the
inputs of the amplifier may be multiplied by the gain and result in a dangerous large offset on
the outputs which may lead to speakers damage for overheating. The feature is enabled by
the MUTE pin (according to table 3) and works with the amplifier unmuted and with no signal
on the inputs.
The DC offset detection is signaled out on the HSD pin. To ensure the correct functionality of
the Offset Detector it is necessary to connect a pulldown 10 kW resistor between HSD and
ground.
4.5
Heatsink definition
Under normal usage (4 Ohm speakers) the heatsink's thermal requirements have to be
deduced from Figure 18, which reports the simulated power dissipation when real
music/speech programmes are played out. Noise with gaussian-distributed amplitude was
employed for this simulation. Based on that, frequent clipping occurrence (worst-case) will
cause Pdiss = 26 W. Assuming Tamb = 70 °C and TCHIP = 150 °C as boundary conditions, the
heatsink's thermal resistance should be approximately 2°C/W. This would avoid any thermal
shutdown occurrence even after long-term and full-volume operation.
14/18
TDA7850
Package information
In order to meet environmental requirements, ST (also) offers these devices in ECOPACK®
packages. ECOPACK® packages are lead-free. The category of second Level Interconnect
is marked on the package and on the inner box label, in compliance with JEDEC Standard
JESD97. The maximum ratings related to soldering conditions are also marked on the inner
box label.
ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.
Figure 21. Flexiwatt25 (vertical) mechanical data and package dimensions
DIM.
A
B
C
D
E
F (1)
G
G1
H (2)
H1
H2
H3
L (2)
L1
L2 (2)
L3
L4
L5
M
M1
N
O
R
R1
R2
R3
R4
V
V1
V2
V3
MIN.
4.45
1.80
0.75
0.37
0.80
23.75
28.90
22.07
18.57
15.50
7.70
3.70
3.60
mm
TYP.
4.50
1.90
1.40
0.90
0.39
1.00
24.00
29.23
17.00
12.80
0.80
22.47
18.97
15.70
7.85
5
3.5
4.00
4.00
2.20
2
1.70
0.5
0.3
1.25
0.50
MAX.
4.65
2.00
MIN.
0.175
0.070
1.05
0.42
0.57
1.20
24.25
29.30
0.029
0.014
0.031
0.935
1.139
22.87
19.37
15.90
7.95
0.869
0.731
0.610
0.303
4.30
4.40
0.145
0.142
inch
TYP.
0.177
0.074
0.055
0.035
0.015
0.040
0.945
1.150
0.669
0.503
0.031
0.884
0.747
0.618
0.309
0.197
0.138
0.157
0.157
0.086
0.079
0.067
0.02
0.12
0.049
0.019
MAX.
0.183
0.079
OUTLINE AND
MECHANICAL DATA
0.041
0.016
0.022
0.047
0.955
1.153
0.904
0.762
0.626
0.313
0.169
0.173
Flexiwatt25 (vertical)
5˚ (T p.)
3˚ (Typ.)
20˚ (Typ.)
45˚ (Typ.)
(1): dam-bar protusion not included
(2): molding protusion included
V
C
B
V
H
H1
V3
A
H2
O
H3
R3
L4
R4
V1
R2
L2
N
R
L3
5
Package information
L
L1
V1
V2
R2
D
R1
L5
Pin 1
R1
R1
E
G
G1
F
FLEX25ME
M
M1
7034862
15/18
Package information
TDA7850
Figure 22. Flexiwatt25 (horizontal) mechanical data and package dimensions
DIM.
A
B
C
D
E
F (1)
G
G1
H (2)
H1
H2
H3
L (2)
L1
L2 (2)
L3
L4
L5
L6
M
M1
M2
N
P
R
R1
R2
R3
R4
V
V1
V2
V3
MIN.
4.45
1.80
0.37
mm
TYP.
4.50
1.90
1.40
2.00
0.39
0.75 1.00
23.70 24.00
28.90 29.23
17.00
12.80
0.80
21.64 22.04
10.15 10.5
15.50 15.70
7.70 7.85
5
5.15 5.45
1.80 1.95
2.75 3.00
4.73
5.61
2.20
3.20 3.50
1.70
0.50
0.30
1.25
0.50
inch
MAX. MIN. TYP.
4.65 0.175 0.177
2.00 0.070 0.074
0.055
0.079
0.42 0.014 0.015
0.57
1.25 0.029 0.040
24.30 0.933 0.945
29.30 1.139 1.150
0.669
0.503
0.031
22.44 0.852 0.868
10.85 0.40 0.413
15.90 0.610 0.618
7.95 0.303 0.309
0.197
5.85 0.203 0.214
2.10 0.070 0.077
3.50 0.108 0.118
0.186
0.220
0.086
3.80 0.126 0.138
0.067
0.02
0.12
0.049
0.02
5 (Typ.)
3 (Typ.)
20 (Typ.)
45 (Typ.)
MAX.
0.183
0.079
OUTLINE AND
MECHANICAL DATA
0.016
0.022
0.049
0.957
1.153
0.883
0.427
0.626
0.313
0.23
0.083
0.138
0.15
Flexiwatt25
(Horizontal)
(1): dam-bar protusion not included; (2): molding protusion included
7399733 C
16/18
TDA7850
6
Revision history
Revision history
Table 5.
Document revision history
Date
Revision
Changes
22-Nov-2006
1
Initial release.
27-Feb-2007
2
Added Chapter 3.4: Electrical characteristic curves.
09-Oct-2007
3
Updated the values for the dVOS and Iq1 parameters on the Table 4.
Added Figure 20 on page 13.
12-Sep-2008
4
Updated Figure 2: Standard test and application circuit.
Updated Section 4.4: DC offset detector and Section 4.3: Standby
and muting.
Updated the values of VOS and THD parameters on the Table 4.
07-Nov-2008
5
Modified max. values of the THD distortion in Table 4: Electrical
characteristics on page 8.
17-Sep-2013
6
Updated Disclaimer.
17/18
TDA7850
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