MIC2591B Datasheet, PDF (12/34 Pages) Micrel Semiconductor – Dual-Slot PCI Express Hot-Plug Controller

MIC2591B
Typical Characteristics
Supply Current
vs. Temperature
5.0
4.5
4.0
3.5
3.0
12V
2.5
2.0
STBY
1.5
1.0
0.5
3V
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
GATE Start-Up Curent
vs. Temperature
40
35
30
25
12V SINK
20
3V CHARGE
15
100 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
Power-Good Undervoltage
Threshold vs. Temperature
12
12V
10
8
6
4
STBY
2
3V
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
Current Limit (Slow Threshold)
vs. Temperature
55
54
53
52
51
12V
50
49
3V
48
47
46
450 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
March 2005
1.50
1.25
1.00
0.75
0.50
0.25
0
-0.25
-0.500
12V GATE(ON)
vs. Temperature
10 20 30 40 50 60 70
TEMPERATURE (°C)
GATE Shutdown Current
vs. Temperature
100
90
80
70
12V PULLUP
60
50
40
3V SINK
30
20
10
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
1.30
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.200
CFILTER Threshold
vs. Temperature
10 20 30 40 50 60 70
TEMPERATURE (°C)
Current Limit (Fast Threshold)
vs. Temperature
120
MIC2591B-2BTQ
115
110
105
12V
100
3V
95
90
85
800 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
12
Micrel
12.00
11.75
11.50
11.25
11.00
10.75
10.50
10.25
10.000
3V GATE
vs. Temperature
10 20 30 40 50 60 70
TEMPERATURE (°C)
UVLO Threshold
vs. Temperature
10
9
12V
8
7
6
5
4
3
STBY
2
3V
1
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
CFILTER Charging Current
vs. Temperature
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
Auxiliary Regulated Current
vs. Temperature
0.8
0.7
0.6
0.5
0.4
0.3
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
M9999-033105