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Part Name
Description
MIC2287C View Datasheet(PDF) - Micrel
Part Name
Description
View to exact match
MIC2287C
1.2MHz PWM White LED Driver with OVP in 2mm × 2mm MLF™ and Thin SOT-23
Micrel
MIC2287C Datasheet PDF : 9 Pages
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9
MIC2287C
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)
3 Series LED Efficiency
84
82
80
78
76
74
72
70
0
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
L = 10
H
C
OUT
= 0.22
F
5 10 15 20 25
I
OUT
(mA)
EN Pin Bias Current
vs. Temperature
50
45
40
35
30
I
EN
= 10V
25
20
15
I
EN
= 4.2V
10
I
EN
= 3.6V
5
0
I
EN
= 3.0V
-50
0
50
100
TEMPERATURE (
C)
M0510-020906
Shutdown Current
vs. Input Voltage
5
4
3
2
1
0
0 2 4 6 8 10 12
V
IN
(V)
6 Series LED Efficiency
84
V
IN
= 4.2V
82
80
V
IN
= 3.6V
78
76
V
IN
= 3.0V
74
72
70
0
L = 10
H
C
OUT
= 0.22
F
5 10 15 20 25
I
OUT
(mA)
Saturation Voltage
vs. Temperature
550
500
450
400
350
300
-40
I
SW
= 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
0
0
100 200 300 400 500
I
SW
(mA)
4
Micrel
Quiescent Current
vs. Input Voltage
5
4
3
2
1
0
0 2 4 6 8 10 12
V
IN
(V)
Switch Frequency
vs. Temperature
1.4
1.2
1
0.8
0.6
0.4
0.2
0
-40 0
40
80 120
TEMPERATURE (
C)
Current Limit
vs. Temperature
900
850
800
750
700
650
60-040
V
IN
= 2.5V
0
40
80 120
TEMPERATURE (
C)
February 2006
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