MIC2592B
Typical Characteristics
Micrel
SUPPLY CURRENT (mA)
12V GATE VOLTAGE (V)
3V GATE VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
Supply Current
vs. Temperature
1.50
1.25
1.00
0.75
0.50
0.25
0
-0.25
-0.50
0
10
12V GATE(ON)
vs. Temperature
12.00
11.75
11.50
11.25
11.00
10.75
10.50
10.25
10.00
0
10
3V GATE
vs. Temperature
12V
STBY
3V
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
GATE SHUTDOWN CURRENT (mA)
GATE START-UP CURRENT (A)
40
35
30
25
20
15
10
0
GATE Start-Up Curent
vs. Temperature
12V PULLUP
UVLO THRESHOLD (V)
12V SINK
3V CHARGE
100
90
80
70
60
50
40
30
20
10
0
0
GATE Shutdown Current
vs. Temperature
10
9
8
7
6
5
4
3
2
1
0
0
UVLO Threshold
vs. Temperature
12V
3V SINK
STBY
3V
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
POWER-GOOD
UNDERVOLTAGE THRESHOLD (V)
12
10
8
6
4
2
Power-Good Undervoltage
Threshold vs. Temperature
CFILTER THRESHOLD (V)
12V
STBY
3V
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
1.25
1.24
1.23
1.22
1.21
1.20
0
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
I
FILTER
(A)
1.30
1.29
1.28
1.27
1.26
CFILTER Threshold
vs. Temperature
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
CFILTER Charging Current
vs. Temperature
0
0
0.5
0
0
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
FAST THRESHOLD (mV)
CURRENT LIMIT (mV)
50
49
48
47
46
45
0
10
12V
3V
105
100
95
90
85
80
0
10
12V
3V
I
LIM(AUX)
(A)
55
54
53
52
51
Current Limit (Slow Threshold)
vs. Temperature
120
115
110
Current Limit (Fast Threshold)
vs. Temperature
MIC2592B-2BTQ
0.8
0.7
0.6
0.5
0.4
0.3
Auxiliary Regulated Current
vs. Temperature
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
0
0
10
20 30 40 50 60
0 5
TEMPERATURE (°C)
70
March 2005
11
M9999-033105
MICREL [ MICREL SEMICONDUCTOR ]
