LTC4251-2 Linear Technology, LTC4251-2 Datasheet - Page 3

• Manufacturer Part Number: LTC4251-2
• Description: Negative Voltage Hot Swap Controllers
• Manufacturer: Linear Technology

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temperature range, otherwise specifications are at T
SYMBOL
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.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
SENSE
INP
TMR
PLLUG
PHLOG
OVLO
OVHST
TMRH
TMRL
2000
1800
1600
1400
1200
1000
800
600
400
200
0
–55
I
IN
V
IN
–35
vs Temperature
= (V
PARAMETER
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
–15
Z
– 0.3V)
TEMPERATURE (°C)
5
25
45
65
W
85 105
425112 G01
U
125
1000
CONDITIONS
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
100
0.1
10
1
A
0
I
= 25°C. (Notes 2, 3)
IN
2
vs V
The
4
IN
SENSE
6
●
denotes the specifications which apply over the full operating
8 10 12 14 16 18 20 22
= 50mV
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
T
A
= 125°C
T
T
A
A
TMR
= 85°C
= 25°C
TMR
TMR
425112 G02
= 2V
TMR
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
= 2V
= 2V
LTC4251/LTC4251-1/
= 2V
10
9
8
7
6
5
4
3
2
–55
r
I
Z
IN
●
●
●
●
vs Temperature
–35
= 2mA
–15
5.25
5.61
MIN
–30
TEMPERATURE (°C)
5
LTC4251-2
EE
25
±0.1
5.55
5.91
0.60
0.26
TYP
–15
230
5.8
5.8
0.7
unless otherwise
28
4
1
1
45
65
MAX
5.85
6.21
±1
85 105
425112 G03
425112fa
UNITS
3
mA
125
µA
µA
µA
µA
µA
µs
µs
V
V
V
V
V
V