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Número de pieza
componentes Descripción
LP2951CD Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
LP2951CD
100 mA, Low Power Low Dropout Voltage Regulator
ON Semiconductor
LP2951CD Datasheet PDF : 22 Pages
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LP2950, LP2951, NCV2951
+ 5.0 V
4
1N4001
20 mA
4.7 k
1
5
Output*
8
NC
5
Error
V
in
V
out
1 2
SNS
2
NC
LP2951CN
NC
3
SD
V
O
T
6
NC
0.1
m
F
Gnd FB
4
7
4
* High for
I
L
< 3.5 mA
1N457
1N457
360
1N457
Figure 27. Open Circuit Detector for 4.0 to 20 mA Current Loop
2
MC34164P
−
5
1
3
100 k
31.6 k
2N3906
6.0 V Lead-Acid
Battery
8
NC
5
Error
V
in
V
out
1
SNS
2
LP2951CN
3
SD
V
O
T
6
NC
Gnd FB
4
7
NC
Figure 28. Low Battery Disconnect
1.0
m
F
Main V+
Memory V+
20
NiCad Backup
Battery
100
2.4
Free Air
P
D(max)
for T
A
= 50
C
90
Mounted
2.0
Vertically
80
Minimum
70
Size Pad
60
2.0 oz. Copper
L
1.6
ÎÎÎÎÎÎ
L
1.2
ÎÎÎÎÎÎ
0.8
50
0.4
R
q
JA
40
0
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 29. DPAK Thermal Resistance and Maximum
Power Dissipation versus PCB Copper Length
http://onsemi.com
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