LTC4253/LTC4253A
6
425353aff
For more information www.linear.com/4253
TYPICAL PERFORMANCE CHARACTERISTICS
V
GATEH
 vs Temperature
UV Threshold
 
vs Temperature
OV
 
Threshold vs Temperature
I
SENSE
 vs (V
SENSE
 V
EE
)
I
SENSE
vs Temperature
TIMER
 
Threshold vs Temperature
I
GATE
(FCL, Sink) vs Temperature
V
GATE
vs Temperature
V
GATEL
vs Temperature
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G10
400
350
300
250
200
150
100
50
0
UV/OV = 4V
TIMER = 0V
V
SENSE
  V
EE
 = 0.3V
V
GATE
 = 1V
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G13
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
UV/OV = 4V
V
GATEH
 = V
IN
  V
GATE
I
IN
 = 2mA
V
SENSE
  V
EE
 (V)
1.5
1
0.5
0
0.5
1
1.5
4253 G16
0.01
0.1
1
10
100
1000
UV/OV = 4V
TIMER = 0V
GATE = HIGH
T
A
 = 25癈
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G11
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
UV/OV = 4V
TIMER = 0V
V
SENSE
 = V
EE
I
IN
 = 2mA
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G14
3.375
3.275
3.175
3.075
2.975
2.875
2.775
I
IN
 = 2mA
V
UVH
V
UVL
V
UV
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G17
0
5
10
15
20
25
30
UV/OV = 4V
TIMER = 0V
V
SENSE
  V
EE
 = 50mV
V
GATE
 = HIGH
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G12
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
UV/OV = 4V
TIMER = 0V
GATE THRESHOLD
BEFORE RAMP UP
TEMPERATURE (癈)
55 35
5.0
5.4
5.6
5.8
65   85  105
6.4
4352 G15
5.2
15   5   25   45
125
6.0
6.2
V
OVH
I
IN
 = 2mA
V
OVL
V
OV
TEMPERATURE (癈)
55 35 15  5   25   45   65   85  105 125
4253 G18
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
I
IN
 = 2mA
V
TMRH
V
TMRL
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