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Número de pieza
componentes Descripción
MIC3202 Ver la hoja de datos (PDF) - Micrel
Número de pieza
componentes Descripción
Fabricante
MIC3202
High-Brightness LED Driver with Integrated MOSFET and High-Side Current Sense
Micrel
MIC3202 Datasheet PDF : 19 Pages
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Micrel, Inc.
Typical Characteristics (Continued)`
V
IN
Supply Current
vs. Temperature
2.0
V
IN
=V
IN
= 12V
V
LED
= OPEN
1.5
I
LED
= 0A
Shutdown Current
vs. Temperature
0.4
V
IN
= 12V
V
EN
= 0V
0.3
1.0
0.2
0.5
0.1
0.0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
340
330
V
IN
= 12V
V
LED
= 3.5V
I
LED
= 1A
L = 47uH
320
0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Enable Bias Current
vs. Temperature
40
V
IN
=V
EN
= 12V
V
LED
= OPEN
35
I
LED
= 0A
30
310
25
300
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
CS Voltage
vs. Temperature
250
225
200
175
V
CS MAX
V
CS MIN
V
IN
= 12V
V
LED
= 3.5V
I
LED
= 1A
L = 47uH
150
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Switch Voltage
vs. Switch Current
300
250
200
150
100
50
0
0.0
V
LED
= 3.5V
V
IN
= 12V
0.3
0.5
0.8
1.0
SWITCH CURRENT (A)
20
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Switch R
DSON
vs. Temperature
450
400
350
300
250
200
-50
V
IN
= 12V
I
SW
= 0.2A
-20 10 40 70 100 130
TEMPERATURE (°C)
Switch R
DSON
vs. Switch Current
290
285
280
275
270
0.0
V
LED
= 3.5V
V
IN
= 12V
0.3
0.5
0.8
1.0
SWITCH CURRENT (A)
September 2010
6
MIC3202
V
IN
UVLO Threshold
vs. Temperature
4.5
Rising
4.0
3.5
3.0
-50
Falling
V
IN
= 12V
V
LED
= 3.5V
I
LED
= 1A
L = 47uH
-20 10 40 70 100 130
TEMPERATURE (°C)
V
CC
Voltage
vs. Temperature
5.20
5.10
5.00
4.90
4.80
-50
V
IN
= 12V
V
LED
= OPEN
I
LED
= 0A
-20 10 40 70 100 130
TEMPERATURE (°C)
Case Temperature
vs. Input Voltage
50
40
30
20
6
300
250
200
150
100
50
0
0.0
V
LED
= 3.5V
I
LED
= 1A
L = 47uH
1oz/3.5 Sq Inch
14
22
30
38
INPUT VOLTAGE (V)
Switch Voltage
vs. Switch Current
V
LED
= 3.5V
V
IN
= 12V
0.3
0.5
0.8
1.0
SWITCH CURRENT (A)
M9999-091710-A
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