STMICROELECTRONICS TDA7850AH

TDA7850A
4 x 50 W MOSFET quad bridge power amplifier plus HSD
Features
■
High output power capability:
– 4 x 50W/4Ω max.
– 4 x 30W/4Ω @ 14.4V, 1KHz, 10%
– 4 x 80W/2Ω max.
– 4 x 55W/2Ω @ 14.4V, 1KHz, 10%
■
MOSFET output power stage
■
Excellent 2Ω 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 (26dB)
– No external compensation
– No bootstrap capacitors
■
On board 0.35A high side driver
Flexiwatt27
(vertical)
Flexiwatt27
(horizontal)
■
ESD
Protections:
■
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
Description
The TDA7850A is a breakthrough MOSFET
technology class AB audio power amplifier in
Flexiwatt27 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 TDA7850A integrates a DC offset detector.
Table 1.
Device summary
Order code
Package
Packing
TDA7850A
Flexiwatt27 (vertical)
Tube
TDA7850AH
Flexiwatt27 (horizontal
Tube
October 2007
Rev 1
1/16
www.st.com
1
Contents
TDA7850A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3
Stand-by and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4
DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.5
Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2/16
TDA7850A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3/16
List of figures
TDA7850A
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.
4/16
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Quiescent current vs. supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output power vs. supply voltage (RL = 4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output power vs. supply voltage (RL = 2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Distortion vs. output power (RL = 4Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Distortion vs. output power (RL = 2Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. frequency (RL = 4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Distortion vs. frequency (RL = 2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power dissipation & efficiency vs. output power (RL = 4Ω, SINE) . . . . . . . . . . . . . . . . . . . 11
Power dissipation & efficiency vs. output power (RL = 2Ω, SINE) . . . . . . . . . . . . . . . . . . . 11
Power dissipation vs. output power (RL = 4Ω, audio program simulation) . . . . . . . . . . . . . 11
Power dissipation vs. output power (RL = 2Ω, audio program simulation) . . . . . . . . . . . . . 11
ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 11
Flexiwatt27 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 13
Flexiwatt27 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 14
TDA7850A
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
OFF DET
MUTE
HSD
HSD/OFF DET
OUT1+
OUT1-
IN1
PW-GND
0.1μF
OUT2+
OUT2-
IN2
PW-GND
0.1μF
OUT3+
OUT3-
IN3
PW-GND
0.1μF
OUT4+
OUT4-
IN4
PW-GND
0.1μF
AC-GND
SVR
0.47μF
TAB
S-GND
47μF
D03AU1467
1.2
Standard test and application circuit
Figure 2.
Standard test and application circuit
C8
0.1μF
C7
2200μF
Vcc1-2
Vcc3-4
7
R1
ST-BY
21
10
5
10K
R2
C9
1μF
MUTE
9
23
47K
C10
1μF
6
C1
IN1
3
12
18
13
19
C2 0.1μF
IN3
OUT3
20
16
C3 0.1μF
22
25
15
IN4
C4 0.1μF
OUT2
4
0.1μF
IN2
OUT1
8
S-GND
14
17
C5
0.47μF
OUT4
24
11
SVR
C6
47μF
26
1, 27
HSD/OFF DET
2
OFF DET
TAB
D03AU1469
5/16
Pin description
2
TDA7850A
Pin description
Figure 3.
Pin connection (top view)
TAB
1
OFF DET
PW-GND
OUT2ST-BY
OUT2+
VCC
OUT1PW-GND
OUT1+
SVR
IN1
IN2
Vertical
S-GND
IN4
IN3
AC-GND
OUT3+
PW-GND
OUT3VCC
OUT4+
MUTE
OUT4PW-GND
HSD
TAB
27
TAB
1
D03AU1468
OFF DET
PW-GND
OUT2ST-BY
OUT2+
VCC
OUT1PW-GND
OUT1+
SVR
IN1
IN2
Horizontal
S-GND
IN4
IN3
AC-GND
OUT3+
PW-GND
OUT3VCC
OUT4+
MUTE
OUT4PW-GND
HSD
TAB
27
AC00107
6/16
TDA7850A
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 = 50ms)
50
V
Output peak current
repetitive (duty cycle 10% at f = 10Hz)
non repetitive (t = 100μs)
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.
Thermal data
Symbol
Rth j-case
Parameter
Thermal resistance junction to case
Max.
3.3
Electrical characteristics
Table 4.
Electrical characteristics
(Refer to the test and application diagram, VS = 14.4V; RL = 4Ω; Rg = 600Ω; f = 1KHz;
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
Test Condition
During St-By ON/OFF output
offset voltage
Gv
Voltage gain
dGv
Channel gain unbalance
ITU R-ARM weighted
see Figure 18
Min.
Typ.
Max.
Unit
100
180
280
mA
±60
mV
-10
+10
mV
-10
+10
mV
27
dB
±1
dB
25
26
7/16
Electrical specifications
Table 4.
Electrical characteristics (continued)
(Refer to the test and application diagram, VS = 14.4V; RL = 4Ω; Rg = 600Ω; f = 1KHz;
Tamb = 25°C; unless otherwise specified).
Symbol
Po
TDA7850A
Parameter
Output power
Test Condition
Min.
Typ.
Max.
Unit
VS = 13.2V; THD = 10%
VS = 13.2V; THD = 1%
VS = 14.4V; THD = 10%
VS = 14.4V; THD = 1%
23
16
28
20
25
19
30
23
W
VS = 14.4V; THD = 10%, 2Ω
50
55
W
50
85
W
Max. output power(1)
VS = 14.4V; RL = 4Ω
VS = 14.4V; RL = 2Ω
THD
Distortion
Po = 4W
Po = 15W; RL = 2Ω
eNo
Output noise
"A" Weighted
Bw = 20Hz to 20KHz
SVR
Supply voltage rejection
f = 100Hz; Vr = 1Vrms
50
75
dB
fch
High cut-off frequency
PO = 0.5W
100
300
KHz
Ri
Input impedance
80
100
120
KΩ
CT
Cross talk
60
70
60
-
dB
ISB
St-By current consumption
Ipin5
Po max.
f = 1KHz PO = 4W
f = 10KHz PO = 4W
0.006
0.015
0.05
0.07
%
35
50
50
70
μV
VSt-By = 1.5V
20
VSt-By = 0V
10
St-by pin current
VSt-By = 1.5V to 3.5V
±1
VSB out
St-By out threshold voltage
(Amp: ON)
VSB in
St-By in threshold voltage
(Amp: OFF)
Mute attenuation
POref = 4W
80
VM out
Mute out threshold voltage
(Amp: Play)
3.5
VM in
Mute in threshold voltage
(Amp: Mute)
VS automute threshold
(Amp: Mute)
Att ≥ 80dB; POref = 4W
(Amp: Play)
Att < 0.1dB; PO = 0.5W
AM
VAM in
Ipin23
Muting pin current
2.75
90
7
VMUTE = 3.5V
-5
V
dB
V
1.5
VMUTE = 1.5V
(Sourced Current)
μA
V
1.5
6.5
μA
7
V
V
7.5
8
12
18
μA
18
μA
0.6
V
800
mA
HSD section
Vdropout
Iprot
8/16
Dropout voltage
Current limits
IO = 0.35A; VS = 9 to 16V
0.25
400
TDA7850A
Electrical specifications
Table 4.
Electrical characteristics (continued)
(Refer to the test and application diagram, VS = 14.4V; RL = 4Ω; Rg = 600Ω; f = 1KHz;
Tamb = 25°C; unless otherwise specified).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Offset detector (Pin 26)
VM_ON
8
Mute voltage for DC offset
detection enabled
VM_OFF
V
Vstby = 5V
VOFF
Detected differential output offset Vstby = 5V; Vmute = 8V
±2
V26_T
Pin 26 voltage for detection =
TRUE
Vstby = 5V; Vmute = 8V
VOFF > ±4V
0
V26_F
Pin 26 Voltage for detection =
FALSE
Vstby = 5V; Vmute = 8V
VOFF > ±2V
12
±3
6
V
±4
V
1.5
V
V
1. Saturated square wave output.
3.4
Electrical characteristic curves
Figure 4.
Quiescent current vs. supply
voltage
200
Figure 5.
Po (W)
Id (mA)
80
75
70
Vi = 0
RL = ∞
190
180
Output power vs. supply voltage
(RL = 4Ω)
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 6.
8
9
10
11
12
Output power vs. supply voltage
(RL = 2Ω)
13
14
15
16
Vs (V)
AC00064
Figure 7.
Po (W)
17
18
AC00064
Distortion vs. output power
(RL = 4Ω)
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
Vs (V)
14
15
16
17
18
AC00066
0.001
0.1
1
10
Po (W)
100
AC00067
9/16
Electrical specifications
Figure 8.
TDA7850A
Distortion vs. output power
(RL = 2Ω)
Figure 9.
THD (%)
Distortion vs. frequency
(RL = 4Ω)
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
0.001
0.1
1
10
Po (W)
100
1000
10000
100000
AC00069
f (Hz)
AC00068
Figure 10. Distortion vs. frequency
(RL = 2Ω)
Figure 11. Crosstalk vs. frequency
CROSSTALK (dB)
THD (%)
-20
10
-30
VS = 14.4 V
RL = 2Ω
Po = 8 W
1
10
100
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 12. Supply voltage rejection vs.
frequency
10000
100000
AC00071
Figure 13. 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
f (Hz)
10/16
10000
100000
AC00072
5
6
7
8
Vs (V)
9
10
AC00073
TDA7850A
Electrical specifications
Figure 14. Power dissipation & efficiency vs.
output power (RL = 4Ω, SINE)
η (%)
Ptot (W)
90
Figure 15. Power dissipation & efficiency vs.
output power (RL = 2Ω, SINE)
η (%)
Ptot (W)
90
180
80
160
70
140
60
60
120
50
50
100
40
40
80
30
30
60
30
20
20
40
20
10
10
20
10
0
0
0
η
80
VS = 14.4 V
RL = 4 x 4Ω
f = 1 KHz SINE
70
VS = 14.4 V
RL = 4 x 2Ω
f = 1 KHz SINE
80
η
70
60
50
2
4
6
8
10
12
14
16
18
20
22
24
26
Po (W)
28
30
40
Ptot
Ptot
0
90
0
0
5
10
15
20
25
30
35
40
45
50
Po (W)
AC00074
55
AC00075
Figure 16. Power dissipation vs. output power Figure 17. Power dissipation vs. output power
(RL = 4Ω, audio program simulation)
(RL = 2Ω, 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 18. 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
11/16
Application hints
4
TDA7850A
Application hints
Ref. 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 TDA7850A'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
Stand-by and muting
STAND-BY 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
470kΩ equivalent resistance should be present between the power supply and the muting
and stand-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 stand-by, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5V/ms.
4.4
DC offset detector
The TDA7850A 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 works with the amplifier unmuted and no signal at the inputs.
The DC offset detection can be available at 2 different pins:
–
–
4.5
Pin 2 (always enabled)
Pin 26. Only enabled if Vmute (pin23) is set higher than 8V. If not (Vmute < 6 V)
pin 26 will revert to the original HSD function.
Heatsink definition
Under normal usage (4 Ohm speakers) the heatsink's thermal requirements have to be
deduced from Figure 16, 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 = 26W. 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.
12/16
TDA7850A
Package information
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a Lead-free second level interconnect. 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 19. Flexiwatt27 (vertical) mechanical data and package dimensions
DIM.
MIN.
4.45
1.80
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
0.75
0.37
0.80
25.75
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
26.00
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
26.25
29.30
0.029
0.014
0.031
1.014
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
1.023
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
1.033
1.153
0.904
0.762
0.626
0.313
0.169
0.173
5˚ (Typ.)
3˚ (Typ.)
20˚ (Typ.)
45˚ (Typ.)
Flexiwatt27 (vertical)
(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
FLEX27ME
M
M1
7139011
13/16
Package information
TDA7850A
Figure 20. Flexiwatt27 (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
0.80
25.75
28.90
21.64
10.15
15.50
7.70
5.15
1.80
2.75
3.20
mm
TYP.
4.50
1.90
1.40
2.00
0.39
1.00
26.00
29.23
17.00
12.80
0.80
22.04
10.5
15.70
7.85
5
5.45
1.95
3.00
4.73
5.61
2.20
3.50
1.70
0.50
0.30
1.25
0.50
MAX.
4.65
2.00
MIN.
0.175
0.070
0.42
0.57
1.20
26.25
29.30
0.014
0.031
1.014
1.139
22.44
10.85
15.90
7.95
0.852
0.40
0.610
0.303
5.85
2.10
3.50
0.203
0.070
0.108
3.80
0.126
inch
TYP.
0.177
0.074
0.055
0.079
0.015
0.040
1.023
1.150
0.669
0.503
0.031
0.868
0.413
0.618
0.309
0.197
0.214
0.077
0.118
0.186
0.220
0.086
0.138
0.067
0.02
0.12
0.049
0.02
MAX.
0.183
0.079
OUTLINE AND
MECHANICAL DATA
0.016
0.022
0.047
1.033
1.153
0.883
0.427
0.626
0.313
0.23
0.083
0.138
0.15
5˚ (Typ.)
3˚ (Typ.)
20˚ (Typ.)
45˚ (Typ.)
Flexiwatt27
(Horizontal)
(1): dam-bar protusion not included; (2): molding protusion included
7399738 A
14/16
TDA7850A
6
Revision history
Revision history
Table 5.
Document revision history
Date
Revision
9-Oct-2007
1
Changes
Initial release.
15/16
TDA7850A
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