MIC2289 Micrel Semiconductor, MIC2289 Datasheet - Page 4

• Manufacturer Part Number: MIC2289
• Description: 2mm 2mm White LED Driver with Internal Schottky Diode and OVP
• Manufacturer: Micrel Semiconductor

MIC2289
Typical Characteristics
M9999-081104
100
99
98
97
96
95
94
93
92
91
90
1.4
1.2
0.8
0.6
0.4
0.2
2.5
1.5
0.5
0
-40 -20
1
0
2
1
0
30 40 50 60 70 80 90 100
2
Feedback Voltage
vs. Input Voltage
Switch Frequency
Schottky Reverse
TEMPERATURE ( C)
V
Leakage Current
TEMPERATURE ( C)
vs. Temperature
R
V
0
4
= 25V
R
V
= 16V
V
R
20 40 60 80 100
IN
= 10V
6
(V)
8
10
12
550
500
450
400
350
300
600
500
400
300
200
100
50
45
40
35
30
25
20
15
10
5
4
3
2
1
0
-50
-40
5
0
0
0
0
Switch Saturation Voltage
I
I
I
EN
EN
EN
EN Pin Bias Current
= 10V
= 4.2V
= 3.0V
100
2
Saturation Voltage
Shutdown Current
vs. Input Voltage
TEMPERATURE ( C)
TEMPERATURE ( C)
vs. Temperature
vs. Temperature
0
vs. Current
4
0
200
V
I
IN
4
V
SW
I
EN
IN
40
= 2.5V
6
I
(mA)
(V)
SW
= 3.6V
300
= 500mA
50
8
V
IN
80
400
= 5V
10
100
120
500
12
SCHOTTKY FORWARD VOLTAGE DROP (mV)
700
600
500
400
300
200
100
900
850
800
750
700
650
600
5
4
3
2
1
0
-40
0
0
V
IN
= 2.5V
2
Quiescent Current
Schottky Forward
vs. Input Voltage
TEMPERATURE ( C)
vs. Temperature
0
Voltage Drop
Current Limit
4
V
IN
40
6
(V)
8
80
August, 2004
10
120
12
Micrel