MIC2289-34BML TR Micrel Inc, MIC2289-34BML TR Datasheet - Page 4

• Manufacturer Part Number: MIC2289-34BML TR
• Description: IC LED DRIVER WHITE BCKLGT 8-MLF
• Manufacturer: Micrel Inc
• Type: Backlight, White LEDr

Specifications of MIC2289-34BML TR

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 1.05MHz ~ 1.35MHz
• Voltage - Supply: 2.5 V ~ 10 V
• Mounting Type: Surface Mount
• Package / Case: 8-MLF®, QFN
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 20mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -
• Efficiency: -
• Other names: MIC2289-34BMLTR; MIC2289-34BMLTR

Typical Characteristics
Micrel, Inc.
July 2007
1.4
1.2
1.0
0.8
0.6
0.4
0.2
2.5
1.5
0.5
100
-40 -20
99
98
97
96
95
94
93
92
91
90
0
2
1
0
30 40 50 60 70 80 90 100
0
Switch Frequency
Schottky Reverse
TEMPERATURE (°C)
Leakage Current
V
TEMPERATURE (°C)
vs. Temperature
2
Feedback Voltage
R
vs. Input Voltage
V
0
= 25V
R
V
= 16V
4
R
20
= 10V
V
IN
40
6
(V)
60
8
80 100
10
12
600
500
400
300
200
100
550
500
450
400
350
300
0
50
45
40
35
30
25
20
15
10
0
-50
5
0
5
4
3
2
1
0
Switch Saturation Voltage
-40
0
I
I
I
E N
E N
E N
100
EN Pin Bias Current
= 10V
= 4.2V
= 3.0V
2
Saturation Voltage
Shutdown Voltage
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
vs. Input Voltage
vs. Temperature
vs. Current
0
200
V
0
I
IN
4
SW
= 2.5V
I
4
V
E N
(mA)
IN
40
300
6
I
= 3.6V
S W
(V)
V
50
= 500mA
IN
8
400
= 5V
80
10
500
100
120
12
SCHOTTKY FORWARD VOLTAGE DROP (mV)
700
600
500
400
300
200
100
0
900
850
800
750
700
650
600
5
4
3
2
1
0
-40
0
V
IN
Schottky Forward
= 2.5V
2
Quiescent Current
Voltage Drop
TEMPERATURE (°C)
vs. Input Current
vs. Temperature
0
Current Limit
4
V
IN
40
6
(V)
M9999-071007
8
80
MIC2289
10
120
12