LT4256 LINER [Linear Technology], LT4256 Datasheet - Page 5

• Manufacturer Part Number: LT4256
• Description: UV, OV and Reverse Supply Protection Controller Low Operating Current: 125?A
• Manufacturer: LINER [Linear Technology]

20V/DIV
TYPICAL PERFORMANCE CHARACTERISTICS
1V/DIV
500.0
507.5
505.0
502.5
495.0
492.5
497.5
12
20
16
0
8
4
–50
AC Blocking
1
UV Threshold vs Temperature
UV/OV Propagation Delay vs
Overdrive
V
IN
V
–25
OUT
= V
V
IN
OUT
GATE
= 12V
0
TEMPERATURE (°C)
10
OVERDRIVE (mV)
2.5ms/DIV
25
10μF , 1k LOAD ON V
60V DUAL NCH MOSFET
50
V
T = 25°C
IN
100
= V
75
OUT
100
= 12V
OUT
4365 G16
4365 G13
4365 G10
1000
125
GND
GND
5V/DIV
3V/DIV
507.5
505.0
502.5
500.0
495.0
492.5
497.5
30
50
40
20
10
Turn-On Timing
0
–50
–50
100μF , 12Ω LOAD ON V
60V SI9945 DUAL NCH MOSFET
V
IN
OV Threshold vs Temperature
Recovery Delay Time vs
Temperature
SHDN
V
= 12V
IN
–25
–25
= V
OUT
V
= 12V
0
IN
0
TEMPERATURE (°C)
TEMPERATURE (°C)
= 34V
V
250μs/DIV
OUT
25
25
OUT
V
V
50
50
IN
IN
= 2.5V
= 12V
75
75
GATE
100
100
4365 G17
4365 G11
4365 G14
125
125
GND
GND
5V/DIV
3V/DIV
0.50
1.00
0.75
0.25
50
40
30
10
20
Turn-Off Timing
0
0
–75
0
UV/OV Leakage vs Temperature
Recovery Delay Time vs V
GATE
V
V
V
SHDN
UV/OV
IN
OUT
= 12V
5
–25
–45°C
= 0.5V
10
100μF , 12Ω LOAD ON V
60V SI9945 DUAL NCH MOSFET
TEMPERATURE (°C)
250μs/DIV
25
15
V
IN
LTC4365
(V)
20
75
25°C
125°C
UV
25
OUT
IN
125
OV
30
4365 G18
4365 G12
4365 G15
5
4365f
175
35
GND
GND