MIC3201 Datasheet, PDF (5/16 Pages) Micrel Semiconductor – High Brightness LED Driver with High-Side Current Sense

Micrel, Inc.
400
350
300
250
200
150
100
50
0
5
RDSON
vs. Input Voltage
I_OUT = 1A @ 25°C
10
15
20
INPUT VOLTAGE (V)
60
50
40
30
20
10
0
5
TCASE @ 1.0A
vs. Input Voltage
1 LED
10
15
20
INPUT VOTLAGE (V)
Shutdown Current
vs. Temperature
35
30
VIN = 12V
25
20
15
10
5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
VCC
vs. Temperature
7.0
6.0
5.0
4.0
3.0
2.0
1.0
VIN = 12V
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
January 2010
180
160
140
120
100
80
60
40
20
0
5
Thermal Shutdown
vs. Input Voltage
ON
OFF
10
15
20
INPUT VOLTAGE (V)
Supply Current
vs. Temperature
2.0
1.8
1.6
1.4
VIN = 12V
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
800
700
600
500
400
300
12V Input
200
R_CS = 0.2Ω
100
L = 22µH
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Current Sense Voltage
vs. Temperature
250
VC(M a x)
200
150
V_{CS(M i n )}
100
50
VHYS
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
5
MIC3201
UVLO Threshold
vs. Temperature
6.0
ON
5.0
OFF
4.0
3.0
2.0
1.0
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Enable Threshold
vs. Temperature
1.6
1.4
ON
1.2
1.0
OFF
0.8
0.6
0.4
0.2
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Low-Side MOSFET RDS(ON)
vs. Temperature
500
450 ^VIN ^{= 12V}
400
350
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
M9999-011210-B