Datasheet

LTC4280
6
4280f
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50 –25
1.230
V
TH (UV)
RISING (V)
1.234
1.240
0
50
4280 G04
1.232
1.238
1.236
25
75
100
TEMPERATURE (°C)
–50 –25
70
75
80
85
V
HYST(UV)
(mV)
90
0
50
4280 G05
25
75
100
TEMPERATURE (°C)
–50 –25
90
I
TIMER
(µA)
110
0
50
4280 G06
95
105
100
25
75
100
V
FB
(V)
0
I
LIM
(mV)
20
25
30
1.2 1.4
4280 G07
15
10
0
0.2 0.4
0.6 0.8 1.0
5
TEMPERATURE (°C)
–50 –25
22
CIRCUIT BREAKER THRESHOLD (mV)
24
27
0
50
75
4280 G08
23
26
25
25
100
V
DD
= 5V, 12V
V
DD
= 3.3V
Current Limit vs V
FB
V
TH
Circuit Breaker vs Temperature
V
TH(UV)
vs Temperature V
HYST(UV)
vs Temperature I
TIMER
vs Temperature
T
A
= 25°C, V
DD
= 12V unless otherwise noted
V
(SENSE+)
– V
(SENSE–)
(mV)
0 25 50 75 100 125 150
T
PHL
V
(GATE)
(µs)
1
100
4280 G09
10
0.1
T
PHL(GATE)
vs Sense Voltage
V
DD
(V)
0
0
I
DD
(mA)
2
4
5
4280 G01
1
3
10 25
15 20
INTV
CC
(V)
2.5
V
DD
(V)
2.5
3.0
4.0
4280 G02
3.0 3.5 4.0
3.5
I
LOAD
(mA)
0
0
V
CC
(V)
2
4
4280 G03
1
3
4
10
2
68
V
DD
= 12V, 5V
V
DD
= 3.3V
I
DD
vs V
DD
INTV
CC
vs V
DD
INTV
CC
vs I
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