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STCF07PNR Scheda tecnica(PDF) 11 Page - STMicroelectronics

Il numero della parte STCF07PNR
Spiegazioni elettronici  High power buck-boost white LED driver
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STCF07PNR Scheda tecnica(HTML) 11 Page - STMicroelectronics

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STCF07
Logic pin description
Doc ID 16757 Rev 3
11/26
7
Logic pin description
7.1
CSEL pin
This input pin allows the setting of two different levels of current. When the voltage on this
pin is low, the internal multiplexer switches the feedback to the FB1 pin, which is the
dedicated feedback pin for low current operation. When the voltage on the CSEL pin is high,
the internal multiplexer switches the feedback to the FB2s pin, and enables the shorting
transistor connected between the FB1 and FB2 pins. The feedback voltage is sensed
directly on the sensing RHC by the connection of FB2s. This sensing pin is dedicated to high
current operation.
7.2
FAULT pin
When the STCF07 is in ON mode (EN is high), the device is able to detect disconnection or
failure of the LED. This information can be used by the system to signal that a problem has
occurred in the LEDs.
7.3
ENABLE pin
This pin functions as an enable input. No internal pull-up or pull-down is provided.


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