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MIC2873YCS Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC2873YCS
Description  1.2A High-Brightness Flash LED Driver with Single-Wire Serial Interface
PDF  24 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2873YCS Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC2873
Typical Characteristics
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Shutdown Current
vs. Temperature
F
SW = 2MHz
V
DC = 0V
155
160
165
170
175
180
185
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Standby Current
vs. Temperature
F
SW = 2MHz
V
DC = 3.6V
2.2
2.3
2.4
2.5
2.6
2.7
2.8
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
UVLO Thresholds
vs. Temperature
F
SW = 2MHz
RISING
FALLING
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
V
IN = 3.6V
50
60
70
80
90
100
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
Maximum Duty Cycle
vs. Temperature
F
SW = 2MHz
V
IN = 3.6V
1.4
1.5
1.6
1.7
1.8
1.9
2.0
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
LED Short Threshold Voltage
vs. Temperature
F
SW = 2MHz
V
IN = 3.6V
1.7
1.8
1.9
2.0
2.1
2.2
2.3
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
LED Short Test Current
vs. Temperature
F
SW = 2MHz
V
IN = 3.6V
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.5
3.0
3.5
4.0
4.5
INPUT VOLTAGE (V)
Boost Switching Frequency
vs. Input Voltage
T
A = -40°C
T
A = 25°C
L = 1 µH
C
OUT = 4.7µF
I
LED = 1.2A
T
A = 85°C
50
60
70
80
90
100
2.6
3.0
3.4
3.8
4.2
4.6
5.0
INPUT VOLTAGE (V)
WLED Power Efficiency
vs. Input Voltage (V
F = 3.4V)
L = 1µH
C
OUT = 4.7µF
LED V
F = 3.4V
I
LED =100mA
I
LED =250mA
I
LED =400mA
I
LED =600mA
I
LED =1.0A
I
LED =1.2A
July 17, 2014
5
Revision 1.0



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