mic3203 Micrel Semiconductor, mic3203 Datasheet - Page 7

• Manufacturer Part Number: mic3203
• Description: High-brightness Driver Controller With High-side Current Sense
• Manufacturer: Micrel Semiconductor

Typical Characteristics (Continued)
Micrel, Inc.
March 2010
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
160
140
120
100
80
60
40
20
0
-40
-40
-20
-20
Switching Frequency
Shutdown Current
vs. Temperature
vs. Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
VIN = 12V
EN = 0V
20
20
40
40
60
60
VIN = 12V
1ILED
ILED = 1A
L = 100µH
80
80
100
100
120
120
50
45
40
35
30
25
20
15
10
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
5
0
-40
-40
-20
-20
vs. Temperature
OFF
VIN = 12V
EN = VIN
Enable Current
TEMPERATURE (°C)
TEMPERATURE (°C)
0
UVLO Threshold
vs. Temperature
0
20
20
7
40
40
60
60
80
80
ON
100
100
120
120
250
200
150
100
180
160
140
120
100
50
80
60
40
20
0
0
-40
0
VCS_MIN
-20
5
Current-Sense Voltage
Thermal Shutdown
10
TEMPERATURE (°C)
vs. Input Voltage
INPUT VOLTAGE (V)
0
vs. Temperature
15
20
20
M9999-032910-A
40
25
ON
OFF
60
30
∆_VCS
ILED
ILED = 1A
VCS_MAX
80
MIC3203
35
100
40
120
45