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AN4346 Fiches technique(PDF) 28 Page - STMicroelectronics

No de pièce AN4346
Description  10 W wide range - high power factor - isolated LED driver using HVLED815PF
PDF  33 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4346 Fiches technique(HTML) 28 Page - STMicroelectronics

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Electrical waveform
AN4346
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DocID025107 Rev 1
3.5
Startup at no load
If the converter wakes-up during no load condition, the OVP protection is triggered and the
output voltage is regulated at 32 V, protecting the output electrolytic capacitors from high
voltage.
Figure 39. Startup at 100 Vac - 50 Hz - no load
Figure 40. Startup at 230 Vac - 50 Hz - no load
CH1: LED current
CH2: CS pin
CH3: VOUT
CH4: VCC pin
CH1: LED current
CH2: CS pin
CH3: VOUT
CH4: VCC pin



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