TDA7850 STMicroelectronics, TDA7850 Datasheet - Page 12

• Manufacturer Part Number: TDA7850
• Description: IC AMP QUAD BRIDGE FLEXIWATT25
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA7850

• Output Type: 4-Channel (Quad)
• Max Output Power X Channels @ Load: 85W x 4 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Package / Case: 25-Flexiwatt (bent and staggered leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical specifications
12/18
Figure 12. Distortion vs. frequency
Figure 14. Supply voltage rejection vs.
Figure 16. Power dissipation and efficiency
0.001
-100
0.01
-20
-30
-40
-50
-60
-70
-80
-90
90
80
70
60
50
40
30
20
10
0.1
0
10
1
10
0
10
P
SVR (dB)
tot
THD (%)
V
R
f = 1 KHz SINE
(W)
2
S
L
R g = 600Ω
Vripple = 1 Vrms
V
R
P
= 14.4 V
= 4 x 4Ω
S
L
o
= 8 W
= 14.4 V
= 2Ω
4
6
(R
frequency
vs. output power (R
100
100
8
L
= 2Ω)
10
12
P
14
o
(W)
f (Hz)
f (Hz)
1000
1000
16
18
20
L
22
= 4Ω, SINE)
10000
10000
24
P
tot
η
26
η (%)
28
AC00070
AC00074
AC00072
100000
100000
30
90
80
70
60
50
40
30
20
10
0
Figure 13. Crosstalk vs. frequency
Figure 15. Output attenuation vs. supply
Figure 17. Power dissipation and efficiency
-100
-100
-20
-30
-40
-50
-60
-70
-80
-90
-20
-40
-60
-80
180
160
140
120
100
0
80
60
40
20
10
0
5
CROSSTALK (dB)
0
OUTPUT ATTN (dB)
Ptot (W)
R
P
R
P
R
o
L
L
o
g
V
R
f = 1 KHz SINE
= 4 W ref
= 4 W
= 4Ω
= 4Ω
= 600Ω
S
5
L
= 14.4 V
= 4 x 2Ω
10
6
voltage
vs. output power (R
100
15
20
7
P
25
o
f (Hz)
(W)
1000
Vs (V)
30
8
35
η
L
40
= 2Ω, SINE)
10000
P
tot
45
9
TDA7850
50
η (%)
AC00075
AC00071
AC00073
55
100000
90
80
70
60
50
40
30
20
10
0
10