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Micrel, Inc.
Typical Performance Characteristics
Figure 7.
MM5450/5451
A
J
20 SEGM
LED
Figure 8.
Figure 9.
Typical Applications
RAW DC
>9V
7V
LM317
240
5k
I19 = 1K
–
LM324
+
5V
20
1
1k
I19
2N2907
PIN 19
MM5450
Figure 10. Typical Application of Constant Current
Brightness Control
5V
CD4046
(VCO)
MM74HC123 Q 19
10 µS
20
MM5450
1
Figure 11. Brightness Control Varying the Duty Cycle
February 2006
7
M9999-021606
(408) 955-1690