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LTC4253AIGN-ADJ 데이터시트(PDF) 4 Page - Linear Technology

부품명 LTC4253AIGN-ADJ
상세설명  -48V Hot Swap Controller with Sequencer
PDF  32 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LTC4253AIGN-ADJ 데이터시트(HTML) 4 Page - Linear Technology

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LTC4253A-ADJ
4
4253a-adjf
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.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ISQTMR
SQTIMER Pin Current
SQTIMER On (Power Good Sequence, Sourcing),
●
357
µA
VSQTMR = 2V
SQTIMER On (Power Good Sequence, Sinking),
28
mA
VSQTMR = 2V
VDRNL
DRAIN Pin Voltage Low Threshold
For PWRGD1, PWRGD2, PWRGD3 Status
●
2
2.39
3
V
IDRNL
DRAIN Leakage Current
VDRAIN = 4V
±0.1
±1
µA
VDRNCL
DRAIN Pin Clamp Voltage
IDRN = 50µA
●
5
6
7.5
V
VPGL
PWRGD1, PWRGD2, PWRGD3 Signals
IPG = 1.6mA
●
0.25
0.4
V
Output Low Voltage
IPG = 5mA
●
1.2
V
IPGH
PWRGD1, PWRGD2, PWRGD3
VPG = 0V (Sourcing)
●
30
50
70
µA
Output High Current
tSQ
SQ Timer Default Ramp Period
SQTIMER Pin Floating,
250
µs
VSQTMR Ramps from 0.5V to 3.5V
tSS
SS Default Ramp Period
SS Pin Floating, VSS Ramps from 0.2V to 1.25V
140
µs
tPLLUG
UV Low to GATE Low
●
15
µs
tPHLOG
OV High to GATE Low
●
15
µs
TYPICAL PERFOR A CE CHARACTERISTICS
IIN vs VIN
VZ vs Temperature
IIN vs Temperature
TEMPERATURE (
°C)
–50
–25
12.0
13.0
14.5
0
50
75
4253A G01
12.5
14.0
13.5
25
100
125
IIN = 2mA
VIN (V)
0
10
100
20
4253A G02
1
0.1
5
10
15
1000
TA = 125°C
TA = 85°C
TA = 25°C
TA = –40°C
TEMPERATURE (
°C)
–50
0.5
0.6
0.8
0.9
1.0
1.5
1.2
0
50
75
4253A G03
0.7
1.3
1.4
1.1
–25
25
100
125
VIN = VZ – 0.3V



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