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LTC4253B Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4253B
Description  Negative Voltage Hot Swap Controllers in SOT-23
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4253B Datasheet(HTML) 4 Page - Linear Technology

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background image
4
4251b12f
LTC4251B/LTC4251B-1/
LTC4251B-2
TYPICAL PERFORMANCE CHARACTERISTICS
Circuit Breaker Current Limit
Voltage VCB vs Temperature
Analog Current Limit Voltage VACL
vs Temperature
Fast Current Limit Voltage VFCL
vs Temperature
IGATE (Source) vs Temperature
IGATE (ACL, Sink) vs Temperature
IGATE (FCL, Sink) vs Temperature
UV/OV = 4V refers to UV = 4V for the LTC4251B-2.
VZ vs Temperature
Undervoltage Lockout VLKO vs
Temperature
Undervoltage Lockout Hysteresis
VLKH vs Temperature
TEMPERATURE (°C)
–55
14.5
14.0
13.5
13.0
12.5
12.0
–15
25
45
125
4251b12 G04
–35
5
65
85 105
IIN = 2mA
TEMPERATURE (°C)
–55
12.0
11.5
11.0
10.5
10.0
9.5
9.0
8.5
8.0
–15
25
45
125
4251b12 G05
–35
5
65
85 105
TEMPERATURE (°C)
–55
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
–15
25
45
125
4251b12 G06
–35
5
65
85 105
TEMPERATURE (°C)
–55
60
58
56
54
52
50
48
46
44
42
40
–15
25
45
125
4251b12 G07
–35
5
65
85 105
TEMPERATURE (°C)
–55
120
115
110
105
100
95
90
85
80
–15
25
45
125
4251b12 G08
–35
5
65
85 105
TEMPERATURE (°C)
–55
300
275
250
225
200
175
150
–15
25
45
125
4251b12 G09
–35
5
65
85 105
TEMPERATURE (°C)
–55
70
65
60
55
50
45
40
–15
25
45
125
4251b12 G10
–35
5
65
85 105
UV/0V = 4V
TIMER = 0V
VSENSE = VEE
VGATE = 0V
TEMPERATURE (°C)
–55
30
25
20
15
10
5
0
–15
25
45
125
4251b12 G11
–35
5
65
85 105
UV/0V = 4V
TIMER = 0V
VSENSE – VEE = 0.15V
VGATE = 3V
TEMPERATURE (°C)
–55
400
350
300
250
200
150
100
50
0
–15
25
45
125
4251b12 G12
–35
5
65
85 105
UV/0V = 4V
TIMER = 0V
VSENSE – VEE = 0.3V
VGATE = 1V



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