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AN3256 データシート(PDF) 13 Page - STMicroelectronics

部品番号 AN3256
部品情報  Low-cost LED driver for an A19 lamp
PDF  23 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN3256 データシート(HTML) 13 Page - STMicroelectronics

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AN3256
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Doc ID 17790 Rev 1
13/23
Figure 16.
Efficiency vs line voltage
Efficiency improves with the number of LEDs. It is better at low line voltage.
Figure 17.
Power loss vs line voltage
Power loss increases with both line voltage and number of LEDs in the load. This indicates a
series loss - both the FET resistance and the input filter choke resistance could be
contributing.



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