Micrel, Inc.
6-Series LED Circuit without External Soft-Start
L = 10μH
C IN = 1μF
C OUT = 0.22μF
V IN = 3.6V
I OUT = 20mA
6 LEDs
TIME (100μs/div.)
Figure 5. 6-Series LED Circuit
without External Soft Start
MIC2289C
6-Series LED Circuit with External Soft-Start
L = 10μH
C IN = 1μF
C OUT = 0.22μF
V IN = 3.6V
I OUT = 20mA
6 LEDs
C SS = 2200pF
TIME (100μs/div.)
Figure 6. 6-Series LED Circuit
with External Soft Start
August 2007
8
M9999-081507-B
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