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LTC4253 Datasheet(PDF) 7 Page - Linear Technology

Part # LTC4253
Description  Negative Voltage Hot Swap Controllers
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4253 Datasheet(HTML) 7 Page - Linear Technology

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LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
7
425212fd
TYPICAL PERFORMANCE CHARACTERISTICS
OV Threshold vs Temperature
ISENSE vs Temperature
ISENSE vs (VSENSE – VEE)
TIMER Threshold
vs Temperature
ITMR (Initial Cycle, Sourcing)
vs Temperature
ITMR (Initial Cycle, Sinking)
vs Temperature
VGATEH vs Temperature
VGATEL vs Temperature
UV Threshold vs Temperature
TEMPERATURE (°C)
–55 –35 –15
5
25
45
65
85 105 125
425212 G31
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
VGATEH = VIN – VGATE,
IIN = 2mA
(MS ONLY)
TEMPERATURE (°C)
–55
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–15
25
45
125
425212 G14
–35
5
65
85 105
UV/0V = 4V
TIMER = 0V
GATE THRESHOLD
BEFORE RAMP-UP
TEMPERATURE (°C)
–55
3.375
3.275
3.175
3.075
2.975
2.875
2.775
–15
25
45
125
425212 G15
–35
5
65
85 105
VUVH
VUV
VUVL
TEMPERATURE (°C)
–55
6.45
6.25
6.05
5.85
5.65
5.45
5.25
5.05
4.85
–15
25
45
125
425212 G16
–35
5
65
85 105
VOVH
VOVL
VOV
TEMPERATURE (°C)
–55
–10
–12
–14
–16
–18
–20
–22
–24
–26
–28
–30
–15
25
45
125
425212 G17
–35
5
65
85 105
UV/0V = 4V
TIMER = 0V
GATE = HIGH
VSENSE – VEE = 50mV
(VSENSE – VEE) (V)
–1.5 –1.0 –0.5
0
0.5
1.0
1.5
2.0
0.01
0.1
1.0
10
100
1000
425212 G18
UV/0V = 4V
TIMER = 0V
GATE = HIGH
TA = 25°C
TEMPERATURE (°C)
–55
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–15
25
45
125
425212 G19
–35
5
65
85 105
VTMRH
VTMRL
TEMPERATURE (°C)
–55
10
9
8
7
6
5
4
3
2
1
0
–15
25
45
125
425212 G20
–35
5
65
85 105
TIMER = 2V
TEMPERATURE (°C)
–55
50
45
40
35
30
25
20
15
10
–15
25
45
125
425212 G21
–35
5
65
85 105
TIMER = 2V



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