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AN4346 Folha de dados(PDF) 30 Page - STMicroelectronics

Nome de Peças AN4346
Descrição Electrónicos  10 W wide range - high power factor - isolated LED driver using HVLED815PF
PDF  33 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4346 Folha de dados(HTML) 30 Page - STMicroelectronics

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Electrical waveform
AN4346
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DocID025107 Rev 1
3.7
Output short-circuit
During a short of the output connector, all the energy stored in the output electrolytic
capacitor is discharged into the output side loop and no current will flow into the external
LED preventing their failure.
The converter is able to regulate the output current to a minimum level reducing the input
power during this fail.
Figure 45. Short-circuit behavior at 100 Vac
- 50 Hz
Figure 46. After short-circuit at 100 Vac - 50 Hz
CH1: DRAIN pin
CH2: CS pin
CH3: VOUT
CH4: VCC pin
CH1: DRAIN pin
CH2: CS pin
CH3: VOUT
CH4: VCC pin
Figure 47. Short-circuit behavior at 30 Vac
- 50 Hz
Figure 48. After short-circuit at 230 Vac - 50 Hz
CH1: DRAIN pin
CH2: CS pin
CH3: VOUT
CH4: VCC pin
CH1: DRAIN pin
CH2: CS pin
CH3: VOUT
CH4: VCC pin



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