MIC2287 Micrel Semiconductor, MIC2287 Datasheet - Page 4

• Manufacturer Part Number: MIC2287
• Description: 1.2MHz PWM White LED Driver with OVP in 2mm 2mm MLF and Thin SOT-23
• Manufacturer: Micrel Semiconductor

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