LT4250 LINER [Linear Technology], LT4250 Datasheet - Page 5

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

Typical perForMance characTerisTics
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
–10
–12
–14
–16
–18
–20
–22
–24
–26
–28
–30
–55
–55
–55
UV Threshold vs Temperature
I
V
SENSE
UV/0V = 4V
V
V
GATE
TMR
SENSE
LTC4251-1
–35
–35
–35
= 0V
vs Temperature
–15
–15
–15
vs Temperature
= V
EE
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
25
25
25
UV/0V = 4V
TIMER = 0V
GATE = HIGH
V
45
45
45
SENSE
65
65
65
– V
85 105
85 105
85 105
EE
V
V
= 50mV
425112 G13
UVHI
UVLO
425112 G16
425112 G19
125
125
125
1000
6.45
6.25
6.05
5.85
5.65
5.45
5.25
0.01
100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.1
1.0
10
0
–1.5 –1.0 –0.5
–55
–55
V
OV Threshold vs Temperature
I
SENSE
UV/0V = 4V,
V
GATE THRESHOLD
BEFORE RAMP-UP
GATEL
LTC4251
TMR
–35
–35
= 0V,
–15
–15
vs (V
vs Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
(V
5
5
SENSE
SENSE
25
25
0
V
– V
V
– V
OVH
OVL
45
45
0.5
EE
EE
) (V)
65
65
)
1.0
UV/0V = 4V
TIMER = 0V
GATE = HIGH
T
A
85 105
85 105
= 25°C
1.5
425112 G17
425112 G14
425112 G20
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
125
125
LTC4251/LTC4251-1/
2.0
3.375
3.275
3.175
3.075
2.975
2.875
2.775
6.51
6.41
6.31
6.21
6.11
6.01
5.91
5.81
5.71
5.61
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–55
–55
–55
OV Threshold vs Temperature
UV Threshold vs Temperature
TIMER Threshold vs Temperature
LTC4251/LTC4251-2
LTC4251-1
–35
–35
–35
–15
–15
–15
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
LTC4251-2
25
25
25
V
V
TMRL
TMRH
V
V
45
UVH
45
UVL
45
65
65
65
85 105
85 105
85 105
V
V
OVHI
OVLO
425112 G18
425112 G15
425112 G21
425112fc
5
125
125
125