LTC4241_15 Datasheet, PDF (4/16 Pages) Linear Technology – PCI-Bus with 3.3V Auxiliary Hot Swap Controller

LTC4241
TYPICAL PERFOR A CE CHARACTERISTICS
3.3V and 5V Current
Foldback Profile
12
3V_OUT
10
5V_OUT
8
6
4
2
3V_IN = 3.3V
5V_IN = 5V
R_SENSE = 0.005Ω
0
0.5 1.5 2.5 3.5 4.5 5.5
OUTPUT VOLTAGE (V)
4241 • G01
5V_IN Current Limit Voltage
vs Temperature
70
60
5V_OUT = 5V
50
40
30
20
10
5V_OUT = 0V
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G04
V_EEIN Current Limit
vs Temperature
600
500
V_EEOUT = –11V
400
300
200
V_EEOUT = 0V
100
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G07
4
12V Current Foldback Profile
1100
1000 ^{12VIN = 12V}
900
800
700
600
500
400
300
200
100
0
0 1 2 3 4 5 6 7 8 9 10 11 12
OUTPUT VOLTAGE (V)
4241 • G02
–12V Current Foldback Profile
1100
1000 ^{VEEIN = –12V}
900
800
700
600
500
400
300
200
100
0
0 –1 –2 –3 –4 –5 –6 –7 –8 –9 –10 –11 –12
OUTPUT VOLTAGE (V)
4241 • G03
3V_IN Current Limit Voltage
vs Temperature
70
12V_IN Current Limit
vs Temperature
1200
60
3V_OUT = 3.3V
50
40
30
20
10
3V_OUT = 0V
1000
800
600
400
200
12V_OUT = 11V
12V_OUT = 0V
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G05
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G06
(V_AUXIN – V_AUXSENSE)
Circuit Breaker Trip Voltage
vs Temperature
55
54
53
52
51
50
49
48
47
46
45
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G08
GATE, AUXGATE Output Source
Current vs Temperature
90
12.5
80
12.0
70
11.5
GATE
60
11.0
50
10.5
40
AUXGATE
10.0
30
9.5
20
9.0
10
8.5
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4241 • G09
sn4241 4241f