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MIC3202 Datasheet(PDF) 5 Page - Micrel Semiconductor

Part # MIC3202
Description  High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
PDF  19 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC3202 Datasheet(HTML) 5 Page - Micrel Semiconductor

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Micrel, Inc.
MIC3202
Typical Characteristics
Efficiency
vs. Input Voltage
75
80
85
90
95
100
6
1422
3038
INPUT VOLTAGE (V)
ILED = 1A
L = 47uH
1LED
8LED
6LED
4LED
2LED
LED Current Normalized
vs. Input Voltage
0.98
0.99
1.00
1.01
1.02
6
14223038
INPUT VOLTAGE (V)
ILED = 1A
L = 47uH
1LED
8LED
6LED
4LED
2LED
LED Current Accuracy
vs. Input Voltage
-2.0%
-1.0%
0.0%
1.0%
2.0%
6
14
223038
INPUT VOLTAGE (V)
ILED = 1A
L = 47uH
1LED
8LED
6LED
4LED
2LED
Switching Frequency
vs. Input Voltage
0
250
500
750
1000
614
22
30
38
INPUT VOLTAGE (V)
ILED = 1A
L = 47uH
1LED
2LED
4LED
6LED
8LED
Duty Cycle
vs. Input Voltage
0%
25%
50%
75%
100%
6
14
223038
INPUT VOLTAGE (V)
1LED
2LED
4LED
6LED
8LED
ILED = 1A
L = 47uH
VIN Supply Current
vs. Input Voltage
0.0
0.5
1.0
1.5
2.0
2.5
3.0
6
14223038
INPUT VOLTAGE (V)
VOUT = OPEN
VCC = 5V
NO-SWITCHING
VIN Shutdown Current
vs. Input Voltage
0.0
0.1
0.2
0.3
0.4
0.5
614
22
30
38
INPUT VOLTAGE (V)
VEN = 0V
VCC Voltage
vs. Input Voltage
4.950
4.975
5.000
5.025
5.050
6
14
223038
INPUT VOLTAGE (V)
VLED = OPEN
ILED = 0A
CS Voltage
vs. Input Voltage
150
175
200
225
250
6
1422
3038
INPUT VOLTAGE (V)
VCS MAX
VCS MIN
VLED =3.5V
ILED =1A
Enable Bias Current
vs. Enable Voltage
0
25
50
75
100
125
6
1422
3038
ENABLE VOLTAGE (V)
VIN = VEN
VLED =OPEN
ILED = 0A
Dimming Bias Current
vs. Dimming Voltage
0
25
50
75
100
6
1422
3038
DIMMING VOLTAGE (V)
VIN = VDIM
VLED =OPEN
ILED = 0A
Switch RDSON
vs. Input Voltage
225
275
325
375
425
6
1422
3038
INPUT VOLTAGE (V)
VLED = 3.5V
ILED = 1A
September 2010
5
M9999-091710-A



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