MIC3203 Datasheet, PDF (6/21 Pages) Micrel Semiconductor – High-Brightness LED Driver Controller with High-Side Current Sense

Micrel, Inc.
Typical Characteristics (Continued)
VCC vs. Input Voltage
6.0
5.0
TA = 25°C
4.0
ILED = 0A
ICC = 0A
3.0
2.0
1.0
0.0
0
5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Shutdown Current
vs. Input Voltage
40
35
30
25
20
15
TA = 25°C
10
ILED = 0A
5
0
-5
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Supply Current
vs. Temperature
1.2
1.0
0.8
VIN = 12V
ILED = 0A
0.6
0.4
0.2
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
Enable Threshold
vs. Input Voltage
TA = 25°C
ILED = 0A
ICC = 0A
5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Enable Current
vs. Enable Voltage
160
140
120
100
80
60
TA = 25°C
40
20
0
0 5 10 15 20 25 30 35 40 45
ENABLE VOTLAGE (V)
VCC
vs. Temperature
6.0
5.0
VIN = 12V
4.0
ICC = 0A
3.0
2.0
1.0
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC3203
Current-Sense Voltage
vs. Input Voltage
250
200
150
VCS_MIN
100
50
VCS_MAX
L = 100µH
ILED = 1A
0
0 5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
200
180
160
140
120
100
80
60
40
20
0
0
ICC Limit
vs. Input Voltage
TA = 25°C
VCC = 4.2V
ILED = 0A
5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
Enable Threshold
vs. Temperature
2.0
1.8
1.6
ON
1.4
1.2
OFF
1.0
0.8
0.6
0.4
0.2
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
March 2010
6
M9999-032910-A