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PDF TDA7850LV Data sheet ( Hoja de datos )
| Número de pieza | TDA7850LV | |
| Descripción | 4 x 50 W quad bridge amplifier suitable | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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TDA7850LV
4 x 50 W quad bridge amplifier
suitable for low voltage car radio systems
Data brief
Features
■ High output power capability:
– 4 x 50 W/4 Ω max.
– 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
– 4 x 80 W/2 Ω max.
– 4 x 53 W/2 Ω @ 14.4V, 1 kHz, 10 %
■ MOSFET output power stage
■ Capable to operate in low voltage conditions
(e.g.: “Start - Slop”)
■ Excellent 2 Ω driving capability
■ Hi-Fi class distortion
■ Low output noise
■ Standby function and 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
Protections:
■ Extreme robustness against any kind of short
to GND
■ Output short circuit to GND, to Vs, across the
load
■ Very inductive loads
■ Overrating chip temperature with soft thermal
limiter
Flexiwatt25
(Vertical)
Flexiwatt25
(Horizontal)
Flexiwatt25
(SMD)
■ Output DC offset detection
■ Load dump voltage
■ Fortuitous open GND
■ Reversed battery
■ ESD
Description
The TDA7850LV is a MOSFET class AB audio
power amplifier, designed for high-power car
radio. In addition to the outstanding output current
capability and distortion performance, the
TDA7850LV is extremely robust against several
kinds of fortuitous misconnections.
It is, moreover, compliant to the most recent OEM
specifications for low voltage operation (the so
called 'start-stop' battery profile during engine
stop) and features a very compact design in BCD
technology.
The TDA7850LV includes offset detector
capability (or high side driver output) and is
available in both SMD and standard Flexiwatt
packages.
Table 1. Device summary
Order code
TDA7850LV
TDA7850LVH
TDA7850LVSM
TDA7850LVSMTR
Package
Flexiwatt25 (Vertical)
Flexiwatt25 (Horizontal)
Flexiwatt25 (SMD)
Flexiwatt25 (SMD)
Packing
Tube
Tube
Tube
Tape and reel
August 2010
Doc ID 17720 Rev 2
For further information contact your local STMicroelectronics sales office.
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TDA7850LV
Package information
Figure 4. 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
0.75
23.70
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
24.00
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. MIN.
4.65 0.175
2.00 0.070
0.42
0.57
1.25
24.30
29.30
0.014
0.029
0.933
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
5˚ (Typ.)
3˚ (Typ.)
20˚ (Typ.)
45˚ (Typ.)
inch
TYP.
0.177
0.074
0.055
0.079
0.015
0.040
0.945
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
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
(1): dam-bar protusion not included; (2): molding protusion included
OUTLINE AND
MECHANICAL DATA
Flexiwatt25
(Horizontal)
7399733 A
Doc ID 17720 Rev 2
5/8
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