ltc4251-1 Linear Technology Corporation, ltc4251-1 Datasheet - Page 5

• Manufacturer Part Number: ltc4251-1
• Description: Negative Voltage Hot Swap Controllers In Sot-23
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
–10
–12
–14
–16
–18
–20
–22
–24
–26
–28
–30
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
–55
I
–55
–55
SENSE
UV Threshold vs Temperature
V
–35
UV/0V = 4V
V
V
GATE
LTC4251-1
TMR
SENSE
–35
–35
–15
vs Temperature
= 0V
–15
–15
vs Temperature
= V
TEMPERATURE (°C)
EE
5
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
25
25
25
UV/0V = 4V
TIMER = 0V
GATE = HIGH
V
45
SENSE
45
45
65
65
65
– V
85 105
W
EE
85 105
85 105
= 50mV
425112 G19
V
V
UVLO
UVHI
425112 G16
425112 G13
125
U
125
125
1000
0.01
6.45
6.25
6.05
5.85
5.65
5.45
5.25
100
0.1
1.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10
0
–1.5 –1.0 –0.5
–55
–55
I
V
OV Threshold vs Temperature
SENSE
UV/0V = 4V,
V
GATE THRESHOLD
BEFORE RAMP-UP
GATEL
TMR
LTC4251
–35
–35
= 0V,
–15
–15
vs (V
vs Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
(V
5
5
SENSE
SENSE
25
0
25
– V
V
V
– V
45
0.5
OVH
OVL
45
EE
EE
) (V)
65
65
)
1.0
UV/0V = 4V
TIMER = 0V
GATE = HIGH
T
A
85 105
= 25°C
85 105
1.5
425112 G14
425112 G20
425112 G17
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
125
125
2.0
LTC4251/LTC4251-1/
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
UV Threshold vs Temperature
TIMER Threshold vs Temperature
OV Threshold vs Temperature
LTC4251/LTC4251-2
–35
LTC4251-1
–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
UVH
UVL
45
45
45
65
65
65
85 105
85 105
85 105
V
V
OVHI
425112 G15
425112 G21
425112 G18
425112fa
OVLO
5
125
125
125