Datasheet

LTC4228-1/LTC4228-2
5
422812f
Typical perForMance characTerisTics
Diode Gate Voltage vs Current
Hot Swap Gate Voltage vs Current OUT Current vs Voltage
Circuit Breaker Trip Voltage
vs Temperature
Active Current Limit Sense
Voltage vs Temperature
Active Current Limit Delay
vs Sense Voltage
IN Supply Current vs Voltage INTV
CC
Load Regulation CPO Voltage vs Current
T
A
= 25°C, V
IN
= 12V, unless otherwise noted.
I
LOAD
(mA)
0
0
INTV
CC
(V)
1
2
3
4
5
6
–2 –4 –6 –8
422812 G02
–10
V
IN
= 12V
V
IN
= 3.3V
V
OUT
(V)
0
–0.5
I
OUT
(mA)
0
0.5
1.0
1.5
2.0
3.0
3
6 9 12
422812 G06
15 18
2.5
V
IN
= 12V
TEMPERATURE (°C)
–50
48
CIRCUIT BREAKER TRIP VOLTAGE (mV)
49
50
51
52
–25 0 25 50
422812 G07
75 100
TEMPERATURE (°C)
–50
63
ACTIVE CURRENT LIMIT SENSE VOLTAGE (mV)
64
65
66
67
–25 0 25 50
422812 G08
75 100
SENSE VOLTAGE (V
IN
– V
SENSE
) (mV)
50
0.1
ACTIVE CURRENT LIMIT DELAY (µs)
10
100
100 150 200 250 300
422812 G09
1
C
HGATE
= 10nF
I
HGATE
(µA)
0
14
12
10
8
6
4
2
0
–6 –10
422812 G05
–2 –4
–8 –12
GATE DRIVE (∆V
HGATE
) (V)
V
IN
= 12V
V
OUT
= V
IN
V
IN
= 2.9V
I
DGATE
(µA)
0
12
10
8
6
4
2
0
–2
–60 –100
422812 G04
–20 –40
–80 –120
V
DGATE
– V
IN
(∆V
DGATE
) (V)
V
IN
= 18V
V
IN
= 2.9V
V
OUT
= V
IN
– 0.1V
V
IN
(V)
0
0
I
IN
(mA)
1
2
3
4
3 6 9 12
422812 G01
15 18
I
CPO
(µA)
0
12
10
8
6
4
2
0
–2
–60 –100
422812 G03
–20 –40
–80 –120
V
CPO
– V
IN
(∆V
CPO
) (V)
V
IN
= 18V
V
IN
= 2.9V