TDA7850A STMicroelectronics, TDA7850A Datasheet - Page 9

• Manufacturer Part Number: TDA7850A
• Description: IC AMP QUAD BRIDGE FLEXIWATT25
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TDA7850A

• 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

TDA7850A
Table 4.
1. Saturated square wave output.
3.4
Figure 4.
Figure 6.
Offset detector (Pin 26)
Symbol
200
190
180
170
160
150
140
130
120
110
100
130
120
110
100
V
90
80
70
60
50
40
30
20
10
V
V
V
0
V
M_OFF
M_ON
8
8
26_T
26_F
I d (mA)
OFF
P o (W)
V i = 0
R L = ∞
R
f = 1 KHz
9
L
= 2Ω
Mute voltage for DC offset
detection enabled
Detected differential output offset V
Pin 26 voltage for detection =
TRUE
Pin 26 voltage for detection =
FALSE
10
10
Electrical characteristics (continued)
(Refer to the test and application diagram, V
T
Electrical characteristic curves
Quiescent current vs. supply
voltage
Output power vs. supply voltage
(R
amb
L
11
= 2 Ω)
= 25 °C; unless otherwise specified).
Parameter
12
12
V s (V)
V s (V)
13
14
14
15
Po-max
THD=10%
16
16
V
V
V
V
V
THD=1%
ST-BY
ST-BY
ST-BY
OFF
ST-BY
OFF
17
> ±4 V
> ±2 V
AC00066
AC00064
= 5 V
= 5 V; V
= 5 V; V
= 5 V; V
18
Test condition
18
Figure 5.
Figure 7.
0.001
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
0.01
5
0.1
10
8
mute
mute
mute
1
0.1
S
P
o
THD (%)
(W)
R
f = 1 KHz
= 14.4 V; R
= 8 V
= 8 V
= 8 V
L
V
R
= 4Ω
9
S
L
= 4Ω
= 14.4 V
10
Output power vs. supply voltage
(R
Distortion vs. output power
(R
L
L
11
= 4 Ω)
= 4 Ω)
L
1
= 4 Ω; R
12
Min.
±2
12
8
0
f = 1 KHz
V
P
s
f = 10 KHz
o
13
(V)
Electrical specifications
(W)
g
= 600 Ω; f = 1 kHz;
Typ.
14
±3
10
15
Po-max
Max.
1.5
±4
6
THD= 10%
16
THD= 1%
17
Unit
AC00067
AC00064
V
V
V
V
V
9/16
100
18