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PDF L4943 Data sheet ( Hoja de datos )
| Número de pieza | L4943 | |
| Descripción | MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L4943 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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® L4943
MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
3 PROGRAMMABLE OUTPUTS:
♦ 3 TO 11V (500mA);
♦ 3 TO 11V (500mA);
♦ 3 TO 7V (500mA) STANDBY
OUT1 AND OUT2 WITH INDEPENDENT EN-
ABLE CONTROL FOR STAND-BY MODE
0.4A HIGH SIDE DRIVER
LOAD DUMP PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L4943 contains a triple voltage regulator and
a high side driver.
In stand-by the output is active as long as possi-
ble even when in thermal shutdown or under any
other fault conditions.
The STCAP pin allows the use of a reserve sup-
ply capacitor that will hold enough energy for the
BLOCK DIAGRAM
Multiwatt 15
ORDERING NUMBER: L4943
5V Stand-by line to allow the µP to store data.
12
ST CAP
GEN
EN1 1
FILTER CAP
REF
2
EN2
VS 5
LOAD
DUMP
6
P-GND
3
S-GND
VMEM
(3÷7)V 0.5A
11
VMEM
10
VMEM_feed
7
VADJ1
(3÷11)V 0.5A
13
VADJ1
VADJ1_feed
VADJ2
9 VADJ2
(3÷11)V 0.5A 14 VADJ2_feed
HSD
4
HSD
8
TAB
D97AU668B
December 2000
1/6
1 page  
DIM.
A
B
C
D
E
F
G
G1
H1
H2
L
L1
L2
L3
L4
L7
M
M1
S
S1
Dia1
MIN.
0.49
0.66
1.02
17.53
19.6
21.9
21.7
17.65
17.25
10.3
2.65
4.25
4.63
1.9
1.9
3.65
mm
TYP.
1
1.27
17.78
22.2
22.1
17.5
10.7
4.55
5.08
MAX.
5
2.65
1.6
0.55
0.75
1.52
18.03
20.2
22.5
22.5
18.1
17.75
10.9
2.9
4.85
5.53
2.6
2.6
3.85
MIN.
0.019
0.026
0.040
0.690
0.772
0.862
0.854
0.695
0.679
0.406
0.104
0.167
0.182
0.075
0.075
0.144
inch
TYP.
0.039
0.050
0.700
0.874
0.870
0.689
0.421
0.179
0.200
MAX.
0.197
0.104
0.063
0.022
0.030
0.060
0.710
0.795
0.886
0.886
0.713
0.699
0.429
0.114
0.191
0.218
0.102
0.102
0.152
L4943
OUTLINE AND
MECHANICAL DATA
Multiwatt15 V
5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L4943.PDF ] | |
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