Datasheet

LT4256-3
5
42563fa
FB Thresholds vs Temperature
OPEN Output Voltage vs I
OPEN
FB Current vs FB Voltage
OPEN Threshold Voltage
vs Temperature
PWRGD Output Voltage
vs I
PWRGD
OV Current vs OV Voltage
I
OPEN
(mA)
0
0
V
OPEN
(V)
2
4
6
2
4
68
42563 G13
10
8
10
1
3
5
7
9
12
TEMPERATURE (°C)
–50
0
0.5
OPEN THRESHOLD VOLTAGE (mV)
1.5
2.5
3.5
5.0
–25
02550
42563 G14
75
100
4.5
1.0
2.0
3.0
4.0
V
CC
– V
SENSE
I
PWRGD
(mA)
0
0
V
PWRGD
(V)
1
2
3
4
6
2
468
42563 G15
10 12
5
TEMPERATURE (°C)
–50
3.9
4.0
FB THRESHOLDS (V)
4.1
4.2
4.3
4.5
–25
02550
42563 G16
75
100
4.4
H-L THRESHOLD
L-H THRESHOLD
V
OV
(V)
0
–50
I
OV
(µA)
0
50
100
150
200
250
5101520
42563 G19
V
FB
(V)
0
–0.4
I
FB
(µA)
–0.3
–0.2
–0.1
0
0.1
0.2
10 20 30 40
42563 G20
50
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Specifications are at T
A
= 25°C unless otherwise noted.
UV Thresholds vs Temperature
TEMPERATURE (°C)
–50
3.5
3.6
UV THRESHOLDS (V)
3.7
3.8
3.9
4.1
–25
02550
42563 G11
75
100
4.0
H-L THRESHOLD
L-H THRESHOLD
OV Thresholds vs Temperature
TEMPERATURE (°C)
–50
3.5
3.6
OV THRESHOLDS (V)
3.7
3.8
3.9
4.1
–25
02550
42563 G12
75
100
4.0
H-L THRESHOLD
L-H THRESHOLD