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LT1640ALCS8 Datasheet(PDF) 3 Page - Linear Technology

No. de pieza LT1640ALCS8
Descripción Electrónicos  Negative Voltage Hot Swap Controller
PDF  16 Pages
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Fabricante Electrónico  LINER [Linear Technology]
Página de inicio  http://www.linear.com
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LT1640ALCS8 Datasheet(HTML) 3 Page - Linear Technology

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LT1640AL/LT1640AH
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2), VDD = 48V, VEE = 0V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VPG
Power Good Threshold
VDRAIN – VEE, High to Low Transition
1.1
1.4
2.0
V
VPGHY
Power Good Threshold Hysteresis
0.4
V
IDRAIN
Drain Input Bias Current
VDRAIN = 48V
q
10
50
500
µA
VOL
PWRGD Output Low Voltage
PWRGD (LT1640AL), (VDRAIN – VEE) < VPG
IOUT = 1mA
q
0.48
0.8
V
IOUT = 5mA
1.50
3.0
V
PWRGD Output Low Voltage
PWRGD (LT1640AH), VDRAIN = 5V
(PWRGD – DRAIN)
IOUT = 1mA
q
0.75
1.0
V
IOH
Output Leakage
PWRGD (LT1640AL), VDRAIN =48V,
q
0.05
10
µA
VPWRGD = 80V
ROUT
Power Good Output Impedance
PWRGD (LT1640AH), (VDRAIN – VEE) < VPG
q
2
6.5
k
Ω
(PWRGD to DRAIN)
AC
tPHLOV
OV High to GATE Low
Figures 1, 2
1.7
µs
tPHLUV
UV Low to GATE Low
Figures 1, 3
1.5
µs
tPLHOV
OV Low to GATE High
Figures 1, 2
5.5
µs
tPLHUV
UV High to GATE High
Figures 1, 3
6.5
µs
tPHLSENSE SENSE High to Gate Low
Figures 1, 4
2
3
4
µs
tPHLPG
DRAIN Low to PWRGD Low
(LT1640AL) Figures 1, 5
0.5
µs
DRAIN Low to (PWRGD – DRAIN) High
(LT1640AH) Figures 1, 5
0.5
µs
tPLHPG
DRAIN High to PWRGD High
(LT1640AL) Figures 1, 5
0.5
µs
DRAIN High to (PWRGD – DRAIN) Low
(LT1640AH) Figures 1, 5
0.5
µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to VEE unless otherwise
specified.
SUPPLY VOLTAGE (V)
0
1.3
1.4
1.5
60
100
1640A G01
1.2
1.1
0
20
40
80
1.6
1.7
1.8
TA = 25°C
Supply Current vs Supply Voltage
TEMPERATURE (
°C)
–50
– 25
1.0
1.1
1.2
1.3
1.4
1.6
025
50
75
1640A G02
100
1.5
VDD = 48V
Supply Current vs Temperature
SUPPLY VOLTAGE (V)
0
6
7
9
10
11
40
80
100
15
1640A G03
8
20
60
12
13
14
TA = 25°C
Gate Voltage vs Supply Voltage
TYPICAL PERFOR A CE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS



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