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LTC1473IGN Datasheet(PDF) 3 Page - Linear Technology

No. de pieza LTC1473IGN
Descripción Electrónicos  Dual PowerPathTM Switch Driver
PDF  16 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
Logo LINER - Linear Technology

LTC1473IGN Datasheet(HTML) 3 Page - Linear Technology

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LTC1473
TYPICAL PERFORMANCE CHARACTERISTICS
DC Supply Current
vs Supply Voltage
SUPPLY VOLTAGE (V)
0
80
120
40
1473 G01
40
0
10
20
30
5
15
25
35
160
60
100
20
140
VDIODE = VIN1 = 5V
VIN2 = 0V
VDIODE = 5V
VIN1 = VIN2 = 0V
VSENSE+ = VSENSE– = V
+
DC Supply Current vs VSENSE
DC Supply Current
vs Temperature
TEMPERATURE (
°C)
–50
50
60
80
90
100
0
140
1473 G02
70
– 25
25
50
75
100
125
110
120
130
V+ = 20V
VDIODE = VIN1 = 5V
VIN2 = 0V
VDIODE = 5V
VIN1 = VIN2 = 0V
VGS Gate-to-Source ON Voltage
vs Temperature
TEMPERATURE (
°C)
–50
5.1
5.2
5.4
5.5
5.6
0
6.0
1473 G04
5.3
– 25
25
50
75
100
125
5.7
5.8
5.9
V+ = VSAB =20V
TEMPERATURE (
°C)
–50
1.0
1.5
2.5
3.0
3.5
0
5.5
1473 G05
2.0
– 25
25
50
75
100
125
4.0
4.5
5.0
START-UP
THRESHOLD
SHUTDOWN
THRESHOLD
Undervoltage Lockout Threshold (V+)
vs Temperature
Note 4: Gate turn-on and turn-off times are measured with no inrush
current limiting, i.e., VSENSE = 0V. Gate rise times are measured from 1V to
4.5V and fall times are measured from 4.5V to 1V. Delay times are
measured from the input transition to when the gate voltage has risen or
fallen to 3V.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
TJ = TA + (PD)(150°C/W)
Note 3: IS increases by the same amount as IBSENSE+ + IBSENSE– when
their common mode falls below 5V.
ELECTRICAL CHARACTERISTICS
VGS Gate Supply Voltage
vs Temperature
TEMPERATURE (
°C)
–50
8.1
8.2
8.4
8.5
8.6
0
9.0
1473 G03
8.3
– 25
25
50
75
100
125
8.7
8.8
8.9
V+ = 20V
VGS = VGG – V
+
|VSENSE| COMMON MODE(V)
0
20
1473 • TPC02.5
5
10
15
2.5
7.5
12.5
17.5
500
450
400
350
300
250
200
150
100
V+ = 20V
VDIODE = VIN1 = 5V
VIN2 = 0V
VSENSE+ – VSENSE– = 0V



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