MIC3203 데이터 시트보기 (PDF) - Micrel
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MIC3203 Datasheet PDF : 21 Pages
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Micrel, Inc.
Typical Characteristics (Continued)
Shutdown Current
vs. Temperature
3.5
3.0
2.5
2.0
VIN = 12V
EN = 0V
1.5
1.0
0.5
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
160
140
120
100
80
60
40
VIN = 12V
1ILED
20
ILED = 1A
L = 100µH
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Enable Current
vs. Temperature
50
45
40
35
30
VIN = 12V
EN = VIN
25
20
15
10
5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
UVLO Threshold
vs. Temperature
4.5
ON
4.0
3.5
3.0
OFF
2.5
2.0
1.5
1.0
0.5
0.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC3203
Current-Sense Voltage
vs. Temperature
250
200
150
VCS_MIN
VCS_MAX
100
∆_VCS
ILED
ILED = 1A
50
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
180
160
140
120
100
80
60
40
20
0
0
Thermal Shutdown
vs. Input Voltage
OFF
ON
5 10 15 20 25 30 35 40 45
INPUT VOLTAGE (V)
March 2010
7
M9999-032910-A
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