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L7987 датащи(PDF) 13 Page - STMicroelectronics

номер детали L7987
подробное описание детали  Adjustable current limitation
PDF  37 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7987 датащи(HTML) 13 Page - STMicroelectronics

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L7987
Functional description
37
In case two or more (up to five) L7987 SYNCH pins are tied together, the L7987 IC with
higher programmed switching frequency is typically the master device; however, the
SYNCH circuit is also able to synchronize with a slightly lower external frequency, so the
frequency pre-adjustment with the same resistor on the FSW pin, as suggested above, is
required for a proper operation.



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