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STCF07PNR Scheda tecnica(PDF) 11 Page - STMicroelectronics |
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STCF07PNR Scheda tecnica(HTML) 11 Page - STMicroelectronics |
11 / 26 page 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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