Datasheet

LT4351
4
4351fd
TYPICAL PERFORMANCE CHARACTERISTICS
Overvoltage Threshold vs V
IN
Overvoltage Hysteresis
vs Temperature
Overvoltage Turn-Off Delay
vs Overvoltage Overdrive
Undervoltage Threshold
vs Temperature
Overvoltage Threshold
vs Temperature
Undervoltage Threshold vs V
IN
T
A
= 25°C, unless otherwise noted.
I
VIN
vs Temperature
I
VDD
vs Temperature
Gate Off-Voltage vs Temperature
TEMPERATURE (°C)
–50
290
V
UV(TH)
(mV)
292
296
298
300
310
304
0
50
75
4351 G01
294
306
308
302
–25
25
100
125
V
IN
= 1.2V
V
IN
= 5V
V
IN
= 12V
V
IN
= 20V
TEMPERATURE (°C)
–50
293
V
OV(TH)
(mV)
297
299
305
0
50
75
4351 G02
295
301
303
–25
25
100
125
V
IN
= 1.2V
V
IN
= 5V
V
IN
= 12V
V
IN
= 20V
V
IN
(V)
0
V
UV(TH)
(mV)
302
306
310
16
4351 G03
298
294
300
304
308
296
292
290
42
86
12 14 18
10
20
V
IN
(V)
0
V
UV(TH)
(mV)
302
306
310
16
4351 G04
298
294
300
304
308
296
292
290
42
86
12 14 18
10
20
TEMPERATURE (°C)
–50 –25
0
OV HYSTERESIS (mV)
10
25
0
50
75
4351 G05
5
20
15
25
100
125
V
IN
= 5V
OV VOLTAGE ABOVE THRESHOLD (mV)
0
0
TURN-OFF DELAY (µs)
2
6
8
10
20
14
10
20
25
3451 G06
4
16
18
12
5
15
30
35
V
IN
= 5V
TEMPERATURE (°C)
–50
1.0
I
VIN
(mA)
1.1
1.3
1.4
1.5
2.0
1.7
0
50
75
4351 G07
1.2
1.8
1.9
1.6
–25
25
100
125
V
IN
= 1.2V
V
IN
= 5V
V
IN
= 12V
V
IN
= 20V
TEMPERATURE (°C)
–50
2.0
I
VDD
(mA)
3.0
3.5
4.5
0
50
75
4351 G08
2.5
4.0
–25
25
100
125
V
IN
= 1.2V
V
IN
= 5V
V
IN
= 12V
V
IN
= 20V
TEMPERATURE (°C)
–50
0
V
GOFF
(V)
0.05
0.15
0.20
0.25
0.50
0.35
0
50
75
4351 G09
0.10
0.40
0.45
0.30
–25
25
100
125
V
IN
= 5V
V
OUT
= 5V
V
IN
= 5V
V
OUT
= 5.1V