LTC1629 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC1629 Datasheet PDF : 28 Pages
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LTC1629/LTC1629-PG
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Input Voltage
and Mode
1000
800
600
ON
400
200
SHUTDOWN
0
0 5 10 15 20 25 30 35
INPUT VOLTAGE (V)
1629 G04
Internal 5V LDO Line Reg
5.1
ILOAD = 1mA
5.0
4.9
4.8
4.7
4.6
4.5
4.4
0
5 10 15 20 25 30 35
INPUT VOLTAGE (V)
1629 G07
Maximum Current Sense Threshold
vs VRUN/SS (Soft-Start)
80
VSENSE(CM) = 1.6V
60
40
20
0
01
2
3
4
5
6
VRUN/SS (V)
1629 G10
EXTVCC Voltage Drop
250
200
LTC1629
150
LTC1629-PG
100
50
0
0
10
20
30
40
50
CURRENT (mA)
1629 G05
Maximum Current Sense Threshold
vs Duty Factor
75
50
25
0
0
20
40
60
80
100
DUTY FACTOR (%)
1629 G08
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
80
76
72
68
64
60
0
1
2
3
4
5
COMMON MODE VOLTAGE (V)
1629 G11
INTVCC and EXTVCC Switch
Voltage vs Temperature
5.05
INTVCC VOLTAGE
5.00
4.95
4.90
4.85
4.80
EXTVCC SWITCHOVER THRESHOLD
4.75
4.70
– 50 – 25
0 25 50 75
TEMPERATURE (°C)
100 125
1629 G06
Maximum Current Sense Threshold
vs Percent of Nominal Output
Voltage (Foldback)
80
70
60
50
40
30
20
10
0
0
25
50
75
100
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
1629 G09
Current Sense Threshold
vs ITH Voltage
90
80
70
60
50
40
30
20
10
0
–10
–20
–30
0
0.5
1
1.5
2
2.5
VITH (V)
1629 G12
5
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