NCL30081_13 Datasheet, PDF (25/31 Pages) ON Semiconductor – Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

NCL30081
160
120
80.0
40.0
0
18.0
16.0
14.0
12.0
10.0
1.10
900m
700m
500m
300m
8.00
6.00
4.00
2.00
0
VCC(on)
VCC(off)
VBO(on)
VBO(off)
50−ms Timer
BO_NOK low
=> Startup mode
46.1m
138m
231m
time in seconds
323m
Figure 53. Brown−Out Chronograms (Valley Fill circuit is used)
415m
VBulk
1
2
VCC
VpinVIN
3
BO_NOK
4
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25