TDA7850H [STMICROELECTRONICS]

4 x 50 W MOSFET quad bridge power amplifier plus HSD; 4× 50W的MOSFET四桥功率放大器加HSD
TDA7850H
型号: TDA7850H
厂家: ST    ST
描述:

4 x 50 W MOSFET quad bridge power amplifier plus HSD
4× 50W的MOSFET四桥功率放大器加HSD

放大器 功率放大器
文件: 总18页 (文件大小:421K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
TDA7850  
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%  
Flexiwatt25  
(Vertical)  
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  
Flexiwatt25  
(Horizontal)  
On board 0.35A high side driver  
ESD  
Protections:  
Description  
Output short circuit to gnd, to V , across the  
s
load  
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/N-  
Channel 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.  
Very inductive loads  
Overrating chip temperature with soft thermal  
limiter  
Output DC offset detection  
Load dump voltage  
Fortuitous open gnd  
Reversed battery  
The TDA7850 integrates a DC offset detector.  
Table 1.  
Device summary  
Order code  
Package  
Packing  
TDA7850  
Flexiwatt25 (Vertical)  
Flexiwatt25 (Horizontal  
Tube  
Tube  
TDA7850H  
October 2007  
Rev 3  
1/18  
www.st.com  
1
Contents  
TDA7850  
Contents  
1
Block diagram and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
1.1  
1.2  
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Standard test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
2
3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
3.1  
3.2  
3.3  
3.4  
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
4
Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
4.1  
4.2  
4.3  
4.4  
4.5  
SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Stand-by and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
DC offset detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Heatsink definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
5
6
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
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.  
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 (R = 4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
L
Output power vs. supply voltage (R = 2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
L
Distortion vs. output power (R = 4Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
L
Figure 10. Distortion vs. output power (R = 2Ω). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
L
Figure 11. Distortion vs. frequency (R = 4Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
L
Figure 12. Distortion vs. frequency (R = 2Ω) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
L
Figure 13. Crosstalk vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Figure 14. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Figure 15. Output attenuation vs. supply voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Figure 16. Power dissipation & efficiency vs. output power (R = 4Ω, SINE) . . . . . . . . . . . . . . . . . . . 12  
L
Figure 17. Power dissipation & efficiency vs. output power (R = 2Ω, SINE) . . . . . . . . . . . . . . . . . . . 12  
L
Figure 18. Power dissipation vs. output power (R = 4Ω, audio program simulation) . . . . . . . . . . . . . 13  
L
Figure 19. Power dissipation vs. output power (R = 2Ω, audio program simulation) . . . . . . . . . . . . . 13  
L
Figure 20. ITU R-ARM frequency response, weighting filter for transient pop. . . . . . . . . . . . . . . . . . . 13  
Figure 21. Flexiwatt25 (vertical) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . . . 15  
Figure 22. Flexiwatt25 (horizontal) mechanical data and package dimensions. . . . . . . . . . . . . . . . . . 16  
4/18  
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+  
IN1  
IN2  
IN3  
IN4  
OUT1-  
0.1μF  
0.1μF  
0.1μF  
0.1μF  
PW-GND  
OUT2+  
OUT2-  
PW-GND  
OUT3+  
OUT3-  
PW-GND  
OUT4+  
OUT4-  
PW-GND  
AC-GND  
0.47μF  
SVR  
47μF  
TAB  
S-GND  
D94AU158D  
1.2  
Standard test and application circuit  
Figure 2.  
Standard test and application circuit  
C8  
C7  
0.1μF  
2200μF  
Vcc1-2  
Vcc3-4  
6
20  
R1  
10K  
R2  
ST-BY  
MUTE  
4
9
8
7
C9  
1μF  
OUT1  
22  
47K  
C1  
C10  
1μF  
5
2
3
OUT2  
OUT3  
OUT4  
IN1  
IN2  
IN3  
IN4  
11  
12  
15  
0.1μF  
17  
18  
19  
C2 0.1μF  
C3 0.1μF  
C4 0.1μF  
21  
24  
23  
14  
13  
S-GND  
16  
10  
25  
1
SVR  
HSD  
TAB  
C5  
0.47μF  
C6  
D95AU335B  
47μF  
5/18  
Pin description  
TDA7850  
2
Pin description  
Figure 3.  
Pin connection (top view)  
TAB  
P-GND2  
OUT2-  
1
ST-BY  
OUT2+  
V
CC  
OUT1-  
P-GND1  
OUT1+  
SVR  
IN1  
IN2  
Vertical  
S-GND  
IN4  
IN3  
AC-GND  
OUT3+  
P-GND3  
OUT3-  
V
CC  
OUT4+  
MUTE  
OUT4-  
P-GND4  
HSD  
25  
1
D94AU159A  
TAB  
P-GND2  
OUT2-  
ST-BY  
OUT2+  
V
CC  
OUT1-  
P-GND1  
OUT1+  
SVR  
IN1  
IN2  
Horizontal  
S-GND  
IN4  
IN3  
AC-GND  
OUT3+  
P-GND3  
OUT3-  
V
CC  
OUT4+  
MUTE  
OUT4-  
P-GND4  
HSD  
25  
D06AU1655  
6/18  
TDA7850  
Electrical specifications  
3
Electrical specifications  
3.1  
Absolute maximum ratings  
Table 2.  
Symbol  
Absolute maximum ratings  
Parameter  
Value  
Unit  
VS  
Operating supply voltage  
18  
28  
50  
V
V
V
VS (DC) DC supply voltage  
VS (pk) Peak supply voltage (for t = 50ms)  
Output peak current  
IO  
repetitive (duty cycle 10% at f = 10Hz)  
non repetitive (t = 100μs)  
9
A
A
10  
Ptot  
Tj  
Power dissipation Tcase = 70°C  
Junction temperature  
80  
150  
W
°C  
°C  
Tstg  
Storage temperature  
-55 to 150  
3.2  
Thermal data  
Table 3.  
Symbol  
Thermal data  
Parameter  
Value  
Unit  
Rth j-case Thermal resistance junction to case  
Max.  
1
°C/W  
7/18  
Electrical specifications  
TDA7850  
3.3  
Electrical characteristics  
Table 4.  
Electrical characteristics  
(Refer to the test and application diagram, V = 14.4V; R = 4Ω; R = 600Ω; f = 1KHz;  
S
L
g
T
= 25°C; unless otherwise specified).  
amb  
Symbol  
Parameter  
Test Condition  
Min.  
Typ.  
Max.  
Unit  
Iq1  
Quiescent current  
RL = ∞  
100  
180  
280  
60  
mA  
mV  
VOS  
Output offset voltage  
Play mode / Mute mode  
During mute ON/OFF output  
offset voltage  
-10  
+10  
+10  
mV  
mV  
ITU R-ARM weighted  
dVOS  
see Figure 20  
During St-By ON/OFF output  
offset voltage  
-10  
25  
Gv  
Voltage gain  
26  
27  
1
dB  
dB  
dGv  
Channel gain unbalance  
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
Po  
Output power  
VS = 14.4V; THD = 10%, 2Ω  
50  
55  
W
W
VS = 14.4V; RL = 4Ω  
VS = 14.4V; RL = 2Ω  
50  
85  
Po max. Max. output power(1)  
Po = 4W  
0.006  
0.015  
0.05  
0.07  
THD  
eNo  
Distortion  
%
Po = 15W; RL = 2Ω  
"A" Weighted  
35  
50  
50  
70  
Output noise  
μV  
Bw = 20Hz to 20KHz  
SVR  
fch  
Supply voltage rejection  
High cut-off frequency  
Input impedance  
f = 100Hz; Vr = 1Vrms  
PO = 0.5W  
50  
100  
80  
75  
dB  
KHz  
KΩ  
300  
100  
Ri  
120  
f = 1KHz PO = 4W  
f = 10KHz PO = 4W  
60  
70  
60  
-
-
CT  
Cross talk  
dB  
VSt-By = 1.5V  
VSt-By = 0V  
20  
10  
1
ISB  
St-By current consumption  
St-by pin current  
μA  
Ipin5  
VSt-By = 1.5V to 3.5V  
(Amp: ON)  
μA  
V
VSB out St-By out threshold voltage  
VSB in St-By in threshold voltage  
2.75  
(Amp: OFF)  
POref = 4W  
1.5  
1.5  
V
AM  
VM out Mute out threshold voltage  
VM in Mute in threshold voltage  
Mute attenuation  
80  
90  
dB  
V
(Amp: Play)  
(Amp: Mute)  
3.5  
V
8/18  
TDA7850  
Table 4.  
Electrical specifications  
Electrical characteristics (continued)  
(Refer to the test and application diagram, V = 14.4V; R = 4Ω; R = 600Ω; f = 1KHz;  
S
L
g
T
= 25°C; unless otherwise specified).  
amb  
Symbol  
Parameter  
Test Condition  
Min.  
Typ.  
Max.  
Unit  
(Amp: Mute)  
Att 80dB; POref = 4W  
(Amp: Play)  
6.5  
7
VAM in VS automute threshold  
V
Att < 0.1dB; PO = 0.5W  
7.5  
12  
8
V
MUTE = 1.5V  
(Sourced Current)  
MUTE = 3.5V  
7
18  
18  
μA  
μA  
Ipin23  
Muting pin current  
V
-5  
HSD section  
Vdropout Dropout voltage  
IO = 0.35A; VS = 9 to 16V  
0.25  
0.6  
V
Iprot  
Current limits  
400  
8
800  
mA  
Offset detector (Pin 25)  
VM_ON  
V
V
V
Mute voltage for DC offset  
detection enabled  
Vstby = 5V  
VM_OFF  
VOFF  
6
4
Detected differential output offset Vstby = 5V; Vmute = 8V  
2
0
3
Vstby = 5V; Vmute = 8V  
VOFF > 4V  
Pin 25 voltage for detection =  
TRUE  
V25_T  
1.5  
V
V
Vstby = 5V; Vmute = 8V  
VOFF > 2V  
Pin 25 Voltage for detection =  
FALSE  
V25_F  
12  
1. Saturated square wave output.  
9/18  
Electrical specifications  
Figure 4.  
TDA7850  
Components and top copper layer of the Figure 2.  
Figure 5.  
Bottom copper layer Figure 2.  
10/18  
TDA7850  
Electrical specifications  
3.4  
Electrical characteristic curves  
Figure 6.  
Quiescent current vs. supply  
voltage  
Figure 7.  
Output power vs. supply voltage  
(R = 4Ω)  
L
Po (W)  
I
(mA)  
V
d
80  
75  
70  
65  
60  
55  
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
200  
190  
180  
170  
160  
150  
140  
130  
120  
110  
100  
= 0  
i
Po-max  
R
=
L
RL= 4Ω  
f = 1 KHz  
THD= 10%  
THD= 1%  
8
10  
12  
14  
16  
18  
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
V
(V)  
s
AC00064  
AC00064  
Vs (V)  
Figure 8.  
Output power vs. supply voltage  
(R = 2Ω)  
Figure 9.  
Distortion vs. output power  
(R = 4Ω)  
L
L
P
(W)  
THD (%)  
10  
o
130  
120  
110  
100  
90  
Po-max  
VS = 14.4 V  
L = 4Ω  
RL= 2Ω  
f = 1 KHz  
R
1
0.1  
THD=10%  
80  
f = 10 KHz  
70  
60  
50  
THD=1%  
40  
f = 1 KHz  
0.01  
30  
20  
10  
0.001  
0
0.1  
1
10  
100  
8
9
10  
11  
12  
13  
(V)  
14  
15  
16  
17  
18  
AC00067  
Po (W)  
V
AC00066  
s
Figure 10. Distortion vs. output power  
Figure 11. Distortion vs. frequency  
(R = 2Ω)  
(R = 4Ω)  
L
L
THD (%)  
THD (%)  
10  
1
10  
1
VS = 14.4 V  
= 2Ω  
VS = 14.4 V  
L = 4Ω  
o = 4 W  
R
R
L
P
f = 10 KHz  
f = 1 KHz  
0.1  
0.1  
0.01  
0.001  
0.01  
0.001  
10  
100  
1000  
f (Hz)  
10000  
100000  
0.1  
1
10  
100  
AC00069  
P
(W)  
o
AC00068  
11/18  
Electrical specifications  
TDA7850  
Figure 12. Distortion vs. frequency  
Figure 13. Crosstalk vs. frequency  
(R = 2Ω)  
L
CROSSTALK (dB)  
-20  
THD (%)  
10  
1
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
RL = 4Ω  
o = 4 W  
Rg = 600Ω  
VS = 14.4 V  
L = 2Ω  
o = 8 W  
P
R
P
0.1  
0.01  
0.001  
10  
100  
1000  
f (Hz)  
10000  
100000  
10  
100  
1000  
f (Hz)  
10000  
100000  
AC00070  
AC00071  
Figure 14. Supply voltage rejection vs.  
frequency  
Figure 15. Output attenuation vs. supply  
voltage  
SVR (dB)  
-20  
OUTPUT ATTN (dB)  
0
R
= 600Ω  
g
-30  
-40  
-50  
-60  
-70  
-80  
-90  
-100  
RL = 4Ω  
Vripple = 1 Vrms  
P
o = 4 W ref  
-20  
-40  
-60  
-80  
-100  
10  
100  
1000  
f (Hz)  
10000  
100000  
5
6
7
8
9
10  
AC00072  
AC00073  
Vs (V)  
Figure 16. Power dissipation & efficiency vs. Figure 17. Power dissipation & efficiency vs.  
output power (R = 4Ω, SINE)  
output power (R = 2Ω, SINE)  
L
L
(%)  
Ptot (W)  
(%)  
η
η
Ptot (W)  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
180  
160  
140  
120  
100  
80  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
90  
80  
70  
η
VS = 14.4 V  
L = 4 x 4Ω  
f = 1 KHz SINE  
VS = 14.4 V  
RL = 4 x 2Ω  
f = 1 KHz SINE  
η
R
60  
50  
40  
30  
20  
Ptot  
Ptot  
60  
40  
20  
10  
0
0
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30  
0
5
10  
15  
20  
25  
30  
35  
40  
45  
50  
55  
AC00074  
Po (W)  
AC00075  
Po (W)  
12/18  
TDA7850  
Electrical specifications  
Figure 18. Power dissipation vs. output power Figure 19. Power dissipation vs. output power  
(R = 4Ω, audio program simulation) (R = 2Ω, audio program simulation)  
L
L
Ptot (W)  
Ptot (W)  
30  
25  
20  
15  
10  
5
60  
55  
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
VS = 13.2 V  
RL = 4 x 4Ω  
GAUSSIAN NOISE  
VS = 13.2 V  
RL = 4 x 2Ω  
GAUSSIAN NOISE  
CLIP START  
CLIP START  
0
1
2
3
Po (W)  
4
5
6
0
2
4
6
8
10  
AC00076  
AC00077  
Po (W)  
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  
TDA7850  
4
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  
4.3  
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.  
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  
4.5  
DC offset detector  
The TDA7850 integrates a DC offset detector to avoid an anomalous DC offset on the inputs  
of the amplifier which may be multiplied by the gain, and result in a dangerous large offset  
on the outputs, which may lead to speaker damage through overheating.  
The feature is enabled by the MUTE pin and works with the amplifier unmuted and with no  
signal on the inputs. The DC offset detection is signaled out on the HSD pin.  
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 P  
= 26W. Assuming T  
= 70°C and T  
= 150°C as boundary conditions, the  
diss  
amb  
CHIP  
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  
5
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 21. Flexiwatt25 (vertical) mechanical data and package dimensions  
mm  
inch  
TYP. MAX.  
4.65 0.175 0.177 0.183  
2.00 0.070 0.074 0.079  
0.055  
DIM.  
MIN. TYP. MAX. MIN.  
OUTLINE AND  
MECHANICAL DATA  
A
B
C
D
E
4.45  
1.80  
4.50  
1.90  
1.40  
0.90  
0.39  
0.75  
0.37  
1.05 0.029 0.035 0.041  
0.42 0.014 0.015 0.016  
F (1)  
G
0.57  
0.022  
0.80  
1.00  
1.20 0.031 0.040 0.047  
G1  
23.75 24.00 24.25 0.935 0.945 0.955  
H (2) 28.90 29.23 29.30 1.139 1.150 1.153  
H1  
H2  
H3  
17.00  
12.80  
0.80  
0.669  
0.503  
0.031  
L (2) 22.07 22.47 22.87 0.869 0.884 0.904  
L1 18.57 18.97 19.37 0.731 0.747 0.762  
L2 (2) 15.50 15.70 15.90 0.610 0.618 0.626  
L3  
L4  
L5  
M
M1  
N
O
R
R1  
R2  
R3  
R4  
7.70  
7.85  
5
3.5  
4.00  
4.00  
2.20  
2
1.70  
0.5  
7.95 0.303 0.309 0.313  
0.197  
0.138  
3.70  
3.60  
4.30 0.145 0.157 0.169  
4.40 0.142 0.157 0.173  
0.086  
0.079  
0.067  
0.02  
0.12  
0.049  
0.019  
0.3  
1.25  
0.50  
V
5˚ (T p.)  
3˚ (Typ.)  
20˚ (Typ.)  
45˚ (Typ.)  
Flexiwatt25 (vertical)  
V1  
V2  
V3  
(1): dam-bar protusion not included  
(2): molding protusion included  
V
C
B
V
H
H1  
V3  
A
H2  
R3  
H3  
R4  
V1  
R2  
N
R
L
L1  
V1  
V2  
D
R2  
R1  
R1  
M
R1  
E
L5  
Pin 1  
G
F
G1  
M1  
7034862  
FLEX25ME  
15/18  
Package information  
TDA7850  
Figure 22. Flexiwatt25 (horizontal) mechanical data and package dimensions  
mm  
inch  
TYP. MAX.  
DIM.  
MIN. TYP. MAX. MIN.  
A
B
C
D
E
4.45  
1.80  
4.50  
1.90  
1.40  
2.00  
0.39  
4.65 0.175 0.177 0.183  
2.00 0.070 0.074 0.079  
0.055  
OUTLINE AND  
MECHANICAL DATA  
0.079  
0.37  
0.75  
0.42 0.014 0.015 0.016  
F (1)  
G
0.57  
0.022  
1.00  
1.25 0.029 0.040 0.049  
G1  
23.70 24.00 24.30 0.933 0.945 0.957  
H (2) 28.90 29.23 29.30 1.139 1.150 1.153  
H1  
H2  
H3  
17.00  
12.80  
0.80  
0.669  
0.503  
0.031  
L (2) 21.64 22.04 22.44 0.852 0.868 0.883  
L1 10.15 10.5 10.85 0.40 0.413 0.427  
L2 (2) 15.50 15.70 15.90 0.610 0.618 0.626  
L3  
L4  
L5  
L6  
M
M1  
M2  
N
7.70  
7.85  
5
7.95 0.303 0.309 0.313  
0.197  
5.15  
1.80  
2.75  
5.45  
1.95  
3.00  
4.73  
5.61  
2.20  
3.50  
1.70  
0.50  
0.30  
1.25  
0.50  
5.85 0.203 0.214 0.23  
2.10 0.070 0.077 0.083  
3.50 0.108 0.118 0.138  
0.186  
0.220  
0.086  
P
R
3.20  
3.80 0.126 0.138 0.15  
0.067  
0.02  
0.12  
0.049  
R1  
R2  
R3  
R4  
V
V1  
V2  
V3  
0.02  
Flexiwatt25  
(Horizontal)  
5˚ (Typ.)  
3˚ (Typ.)  
20˚ (Typ.)  
45˚ (Typ.)  
(1): dam-bar protusion not included; (2): molding protusion included  
7399733 A  
16/18  
TDA7850  
Revision history  
6
Revision history  
Table 5.  
Date  
Document revision history  
Revision  
Changes  
22-Nov-2006  
27-Feb-2007  
1
2
Initial release.  
Added Chapter 3.4: Electrical characteristic curves.  
Updated the values for the dVOS and Iq1 parameters on the Table 4.  
Added Figure 20 on page 13.  
9-Oct-2007  
3
17/18  
TDA7850  
Please Read Carefully:  
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18/18  

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