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MIC2287 Datasheet(PDF) 4 Page - Micrel Semiconductor

Part # MIC2287
Description  1.2MHz PWM White LED Driver with OVP in 2mm 횞 2mm MLF??and Thin SOT-23
PDF  10 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2287 Datasheet(HTML) 4 Page - Micrel Semiconductor

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MIC2287
Micrel
M0510-081104
4
August 2004
Typical Characteristics
90
91
92
93
94
95
96
97
98
99
100
024
68
10
12
V
IN (V)
Feedback Voltage
vs. Input Voltage
0
1
2
3
4
5
02
46
8
10
12
V
IN (V)
Shutdown Current
vs. Input Voltage
0
1
2
3
4
5
02
46
8
10
12
V
IN (V)
Quiescent Current
vs. Input Voltage
70
72
74
76
78
80
82
84
I
OUT (mA)
3 Series LED Efficiency
L = 10
µH
C
OUT
= 0.22
µF
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
0
5
10
15
20
25
70
72
74
76
78
80
82
84
I
OUT (mA)
6 Series LED Efficiency
L = 10
µH
C
OUT
= 0.22
µF
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 3.0V
05
10
15
20
25
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-40
0
40
80
120
TEMPERATURE (
°C)
Switch Frequency
vs. Temperature
0
5
10
15
20
25
30
35
40
45
50
-50
0
50
100
TEMPERATURE (
°C)
EN Pin Bias Current
vs. Temperature
I
EN
= 4.2V
I
EN
= 3.6V
I
EN
= 3.0V
I
EN
= 10V
300
350
400
450
500
550
-40
0
40
80
120
TEMPERATURE (
°C)
Saturation Voltage
vs. Temperature
I
SW = 500mA
600
650
700
750
800
850
900
-40
0
40
80
120
TEMPERATURE (
°C)
Current Limit
vs. Temperature
V
IN
= 2.5V
0
100
200
300
400
500
600
0
100
200
300
400
500
I
SW (mA)
Switch Saturation Voltage
vs. Current
V
IN = 2.5V
V
IN = 5V



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