MIC2289C_07 Datasheet, PDF (4/9 Pages) Micrel Semiconductor – White LED Driver Internal Schottky Diode and OVP

Micrel, Inc.
Typical Characteristics
100
99
98
97
96
95
94
93
92
91
90
0
Feedback Voltage
vs. Input Voltage
2 4 6 8 10 12
V_IN (V)
Switch Frequency
vs. Temperature
1.4
1.2
1.0
0.8
0.6
0.4
0.2
-040 -20 0 20 40 60 80 100
TEMPERATURE (°C)
Schottky Reverse
Leakage Current
2.5
2
1.5
V_R = 25V
1
V_R = 16V
0.5
030
V_R = 10V
40 50 60 70 80 90 100
TEMPERATURE (°C)
August 2007
MIC2289C
Shutdown Voltage
vs. Input Voltage
5
4
3
2
1
0
0 2 4 6 8 10 12
V_IN (V)
EN Pin Bias Current
vs. Temperature
50
45
40
35
I = 10V
30 ^{E N}
25
20
15
I = 4.2V
EN
10
I = 3.6V
EN
5 _{I = 3.0V}
-050^{E N}
0
50
100
TEMPERATURE (°C)
Saturation Voltage
vs. Temperature
550
500
450
400
350
30-040
I_{S W} = 500mA
0
40
80 120
TEMPERATURE (°C)
Switch Saturation Voltage
vs. Current
600
500
400
V_IN = 2.5V
300
200
V_IN = 5V
100
00 _{100 200 300 400 500}
I_SW (mA)
4
Quiescent Current
vs. Input Current
5
4
3
2
1
0
0 2 4 6 8 10 12
V_IN (V)
Schottky Forward
Voltage Drop
700
600
500
400
300
200
100
0
SCHOTTKY FORWARD VOLTAGE DROP (mV)
Current Limit
vs. Temperature
900
850
800
750
700
650
V = 2.5V
IN
60-040
0
40
80 120
TEMPERATURE (°C)
M9999-081507-B