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PDF L4953 Data sheet ( Hoja de datos )
| Número de pieza | L4953 | |
| Descripción | MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L4953 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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® L4953
MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
3 OUTPUTS:
10V (500mA); 5V (1A); 5V (100mA) STANDBY
OUT1 (10V) AND OUT2 (5V) WITH INDE-
PENDENT ENABLE CONTROL FOR STAND-
BY MODE
3A HIGH SIDE DRIVER WITH CLAMPED
OUTPUT (16V)
LOGIC OUTPUT FOR:
– SUPPLY UNDERVOLTAGE (LVW)
– OVERVOLTAGE
– THERMAL PROTECTION
RESET FUNCTION
IGNITION COMPARATOR
REVERSE BATTERY AND LOAD DUMP
PROTECTION
THERMAL SHUTDOWN
DESCRIPTION
The L4953 contains a triple voltage regulator and
a power switch.
The IC includes a monitoring circuit to warn if a
BLOCK DIAGRAM
Multiwatt 15
ORDERING NUMBER: L4953
low voltage or no voltage condition is occuring.
In stand-by output is active as long as possible
even when in thermal shutdown or any other fault
conditions.
The STCAP pin allows the use of a reserve sup-
ply capacitor that will hold enough energy for the
5V Stand-by line to allow the µP to store data.
June 2000
7
VS
LOAD DUMP
AND REV
BATT PROT
3
POW GND
EN 5V
STCAP
1
12
2
EN 10V
15
EN 16V
5
IGN INP
PROT
5V, 100mA
REGULATOR
STAND-BY
5V, 1000mA
REGULATOR
SWITCHED
11
STAND-BY 5V
9
OUT 5V
10V, 500mA
REGULATOR
SWITCHED
10
OUT 10V
16V, 3A
VOLTAGE CLAMP
SWITCHED
4
OUT 16V
VCAP
REF Vref1 LVW THRESHOLD
GEN Vref2 Reset THRESHOLD
IGNITION THRESHOLD
OVERVOLTAGE
UNDERVOLTAGE
THERMAL PROT
RESET
SIG GND
8
D94AU053A
6
IGN OUT
13
LVW/FAULT
14
RESET
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
L4953
OUTLINE AND
MECHANICAL DATA
Multiwatt15 V
5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet L4953.PDF ] | |
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