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LTC4253 датащи(PDF) 4 Page - Linear Technology

номер детали LTC4253
подробное описание детали  Negative Voltage Hot Swap Controllers
PDF  36 Pages
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производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC4253 датащи(HTML) 4 Page - Linear Technology

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LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
4
425212fd
SYMBOL
PARAMETER
CONDITIONS
LTC4252-1/-2
LTC4252A-1/-2
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
ITMR
TIMER Pin Current
Timer On (Initial Cycle/Latchoff/
Shutdown Cooling, Sourcing),
VTMR = 2V
5.8
5.8
μA
Timer Off (Initial Cycle, Sinking),
VTMR = 2V
28
28
mA
Timer On (Circuit Breaker, Sourcing,
IDRN = 0μA), VTMR = 2V
230
230
μA
Timer On (Circuit Breaker, Sourcing,
IDRN = 50μA), VTMR = 2V
630
630
μA
Timer Off (Circuit Breaker/
Shutdown Cooling, Sinking),
VTMR = 2V
5.8
5.8
μA
ΔITMRACC/
ΔIDRN
[(ITMR at IDRN = 50μA) – (ITMR at IDRN =
0μA)]/ΔIDRN
Timer On (Circuit Breaker with
IDRN = 50μA)
8
8
μA/μA
VDRNL
DRAIN Pin Voltage Low Threshold
For PWRGD Status (MS Only)
2.385
2.385
V
IDRNL
DRAIN Leakage Current
VDRAIN = 5V (4V for LTC4252A)
± 0.1
±1
± 0.1
±1
μA
VDRNCL
DRAIN Pin Clamp Voltage
IDRN = 50μA
7
6
V
VPGL
PWRGD Output Low Voltage
IPG = 1.6mA (MS Only)
IPG = 5mA (MS Only)
●
●
0.2
0.4
1.1
0.2
0.4
1.1
V
V
IPGH
PWRGD Pull-Up Current
VPWRGD = 0V (Sourcing) (MS Only) ●
40
58
80
40
58
80
μA
tSS
SS Default Ramp Period
SS Pin Floating, VSS Ramps from
0.2V to 2V
180
μs
SS Pin Floating, VSS Ramps from
0.1V to 0.9V
230
μs
tPLLUG
UV Low to Gate Low
0.4
0.4
μs
tPHLOG
OV High to Gate Low
0.4
0.4
μs
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
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.



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