LT4250 LINER [Linear Technology], LT4250 Datasheet - Page 3

• Manufacturer Part Number: LT4250
• Description: Negative Voltage Hot Swap Controllers in SOT-23
• Manufacturer: LINER [Linear Technology]

temperature range, otherwise specifications are at T
elecTrical characTerisTics
SYMBOL PARAMETER
V
V
V
V
V
V
V
I
I
V
V
I
t
t
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.
Typical perForMance characTerisTics
SENSE
INP
TMR
PLLUG
PHLOG
GATEL
UVHI
UVLO
UVHST
OVHI
OVLO
OVHST
TMRH
TMRL
2000
1800
1600
1400
1200
1000
800
600
400
200
0
–55
I
IN
V
IN
Gate Low Threshold
UV Threshold High
UV Threshold Low
UV Hysteresis
OV Threshold High
OV Threshold Low
OV Hysteresis
SENSE Input Current
UV/OV Input Current
Timer Voltage High Threshold
Timer Voltage Low Threshold
Timer Current
UV Low to GATE Low
OV High to GATE Low
–35
vs Temperature
= (V
–15
Z
– 0.3V)
TEMPERATURE (°C)
5
25
45
65
85 105
425112 G01
125
CONDITIONS
(Before Gate Ramp-Up)
LTC4251/LTC4251-2
LTC4251-1
LTC4251/LTC4251-2
LTC4251-1
LTC4251/LTC4251-2
LTC4251-1
LTC4251
LTC4251-1
LTC4251
LTC4251-1
LTC4251
LTC4251-1
UV/OV = 4V, V
UV/OV = 4V
Timer On (Initial Cycle, Sourcing), V
Timer Off (Initial Cycle, Sinking), V
Timer On (Circuit Breaker, Sourcing), V
Timer Off (Cooling Cycle, Sinking), V
LTC4251/LTC4251-1
1000
100
0.1
10
1
A
0
I
= 25°C.
IN
2
vs V
SENSE
The
4
IN
6
l
= 50mV
denotes the specifications which apply over the full operating
8 10 12 14 16 18 20 22
V
IN
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to V
specified.
Note 3: UV/OV = 4V refers to UV = 4V for the LTC4251-2.
T
A
(V)
= –40°C
TMR
T
TMR
A
TMR
= 125°C
T
T
TMR
= 2V
A
A
= 2V
= 25°C
= 85°C
= 2V
425112 G02
= 2V
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
LTC4251/LTC4251-1/
10
l
l
l
l
l
l
l
l
l
l
9
8
7
6
5
4
3
2
–55
r
I
Z
IN
–35
vs Temperature
3.075
2.300
2.775
2.050
= 2mA
MIN
5.85
5.86
5.25
5.61
–30
–15
TEMPERATURE (°C)
5
LTC4251-2
3.225
2.420
2.925
2.160
0.30
0.26
6.15
6.17
5.55
5.91
0.60
0.26
±0.1
TYP
–15
230
0.5
5.8
5.8
0.7
28
4
1
1
EE
25
unless otherwise
45
3.375
2.540
3.075
2.270
MAX
6.45
6.48
5.85
6.21
65
±1
85 105
425112 G03
425112fc
UNITS
3
125
mA
µA
µA
µA
µA
µA
µs
µs
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V