NCL30083(2013_02) 데이터 시트보기 (PDF) - ON Semiconductor

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NCL30083
(Rev.:2013_02)

Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back

ON Semiconductor 

VCC

VCC(on)

VCC(off)

VCC(reset)

VDRV

VSD

VOVP

VSD(clamp)

Vout

NCL30083

4−s Timer

VSD > VOVP:

controller stops

switching

VCC > VCC(on):

DRV pulses restart

4−s timer has elapsed:

waiting for VCC > VCC(on)

to restart DRV pulses

Figure 59. OVP with SD Pin Chronograms

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