LT4250 LINER [Linear Technology], LT4250 Datasheet - Page 4

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

LTC4251/LTC4251-1/
LTC4251-2
Typical perForMance characTerisTics
4
14.5
14.0
13.5
13.0
12.5
12.0
60
58
56
54
52
50
48
46
44
42
40
70
65
60
55
50
45
40
–55
–55
–55
V
Circuit Breaker Current Limit
Voltage V
I
I
GATE
IN
UV/0V = 4V
TIMER = 0V
V
V
Z
SENSE
GATE
–35
–35
–35
vs Temperature
= 2mA
(Source) vs Temperature
= 0V
–15
–15
–15
= V
EE
TEMPERATURE (°C)
CB
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
vs Temperature
25
25
25
45
45
45
65
65
65
85 105
85 105
85 105
425112 G04
425112 G07
425112 G10
125
125
125
12.0
11.5
11.0
10.5
10.0
120
115
110
105
100
9.5
9.0
8.5
8.0
95
90
85
80
30
25
20
15
10
5
0
–55
–55
–55
Undervoltage Lockout V
Temperature
I
Analog Current Limit Voltage V
vs Temperature
GATE
–35
–35
–35
(ACL, Sink) vs Temperature
–15
–15
–15
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
25
25
25
45
UV/0V = 4V
TIMER = 0V
V
V
45
45
SENSE
GATE
65
65
65
= 3V
– V
LKO
85 105
85 105
85 105
EE
vs
= 0.15V
425112 G05
425112 G08
425112 G11
UV/OV = 4V refers to UV = 4V for the LTC4251-2.
ACL
125
125
125
400
350
300
250
200
150
100
300
275
250
225
200
175
150
1.6
1.4
1.2
0.8
0.6
0.4
0.2
50
0
1
0
–55
–55
–55
I
Undervoltage Lockout Hysteresis
V
Fast Current Limit Voltage V
vs Temperature
GATE
LKH
–35
–35
–35
vs Temperature
(FCL, Sink) vs Temperature
–15
–15
–15
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
5
25
25
25
45
45
45
UV/0V = 4V
TIMER = 0V
V
V
SENSE
GATE
65
65
65
= 1V
– V
85 105
85 105
85 105
EE
FCL
= 0.3V
425112 G12
425112 G06
425112 G09
425112fc
125
125
125