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HVLED001A Scheda tecnica(PDF) 26 Page - STMicroelectronics

Il numero della parte HVLED001A
Spiegazioni elettronici  Offline controller for LED lighting with constant voltage primarysensing and high power factor
PDF  30 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

HVLED001A Scheda tecnica(HTML) 26 Page - STMicroelectronics

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Application information
HVLED001A
26/30
DocID029000 Rev 2
7.6
Disable and monitor feature
Several disabling means are available to externally disable the IC:
1.
Driving the CTRL pin low (CTRL_DIS): this occurrence immediately puts the device
in the low consumption mode; when the CTRL pin is left free, the internal biasing mean
pulls up the voltage above the threshold entering the soft-start procedure.
2.
Driving the CTRL pin high (AN_DIS): a CTRL voltage higher than the threshold for
a time longer than Tdis causes the device to enter the low consumption mode. The
ART timer performs an auto recover procedure after Trec.
Anytime the HVLED001A device enters low consumption an internal pull-down discharges
the soft-start capacitor and resets the soft-start time.



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