LTC4252-2 Linear Technology, LTC4252-2 Datasheet - Page 7

• Manufacturer Part Number: LTC4252-2
• Description: Negative Voltage Hot Swap Controllers
• Manufacturer: Linear Technology

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TYPICAL PERFOR A CE CHARACTERISTICS
6.45
6.25
6.05
5.85
5.65
5.45
5.25
5.05
4.85
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–55 –35 –15
–55
–55
V
OV Threshold vs Temperature
TIMER Threshold
vs Temperature
V
I
(MS ONLY)
GATEH
IN
GATEH
–35
–35
= 2mA
–15
–15
= V
vs Temperature
IN
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
– V
5
GATE
25
25
25
V
V
TMRL
TMRH
,
V
V
V
OVH
OVL
45
45
45
OV
65
65
65
W
85 105
85 105
85 105 125
4252-1/2 G16
4252-1/2 G19
4252-1/2 G31
U
125
125
–10
–12
–14
–16
–18
–20
–22
–24
–26
–28
–30
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10
9
8
7
6
5
4
3
2
1
0
0
–55
–55
–55
I
V
I
vs Temperature
SENSE
TMR
UV/0V = 4V
TIMER = 0V
GATE THRESHOLD
BEFORE RAMP-UP
UV/0V = 4V
TIMER = 0V
GATE = HIGH
V
TIMER = 2V
GATEL
SENSE
–35
–35
–35
(Initial Cycle, Sourcing)
–15
–15
–15
vs Temperature
– V
vs Temperature
EE
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
= 50mV
25
25
25
45
45
45
65
65
65
LTC4252A-1/LTC4252A-2
85 105
85 105
85 105
4252-1/2 G17
4252-1/2 G14
4252-1/2 G20
LTC4252-1/LTC4252-2
125
125
125
3.375
3.275
3.175
3.075
2.975
2.875
2.775
1000
0.01
100
0.1
1.0
10
50
45
40
35
30
25
20
15
10
–1.5 –1.0 –0.5
–55
–55
UV Threshold vs Temperature
I
I
vs Temperature
SENSE
TMR
TIMER = 2V
–35
–35
(Initial Cycle, Sinking)
–15
–15
vs (V
TEMPERATURE (°C)
TEMPERATURE (°C)
(V
5
5
SENSE
SENSE
25
0
25
– V
V
V
V
– V
UVH
UVL
45
45
0.5
UV
EE
EE
) (V)
65
65
)
1.0
UV/0V = 4V
TIMER = 0V
GATE = HIGH
T
A
85 105
85 105
= 25°C
4252-1/2 G15
4252-1/2 G18
4252-1/2 G21
1.5
425212fb
7
125
125
2.0