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L6935TR 데이터시트(PDF) 5 Page - STMicroelectronics |
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L6935TR 데이터시트(HTML) 5 Page - STMicroelectronics |
5 / 20 page Pins description and connection diagrams L6935 5/20 2 Pins description and connection diagrams Figure 4. Pins connection (top view) 2.1 Pin descriptions 11 12 13 14 GND N.C. N.C. PGOOD N.C. N.C. N.C. N.C. 2 3 4 5 L6935 10 987 16 17 18 19 20 N.C. 1 6 15 N.C. Table 2. Pins descriptions Pin # Name Function 1 N.C. Not internally connected. 2 GND Ground connection. Connect to PCB ground plane. 3, 4 N.C. Not internally connected. 5 PGOOD Power Good output flag: the pin is open drain and it is forced low if the output voltage is lower than 90 % of the programmed voltage. If not used, it can be left floating. 6 VBIAS Input bias supply. This pin supplies the internal logic to drive the power N-channel MOSFET that realize the voltage conversion. Connect directly to VIN or to a different supply ranging from VIN to 5 V. The voltage connected to this pin MUST always be higher or equal that VIN. 7EN Enables the device if a voltage higher than 1 V is applied. When pulled low, the device is in low-power consumption: everything inside the controller is kept OFF. See Section 6.2 for details about EN signal and power sequencing. 8 to 10 VIN Power supply voltage. This pin is connected to the drain of the internal N-channel MOSFET. Filter to GND with capacitor larger than the one used for VOUT. 11 to15 N.C. Not internally connected. 16 to 18 VOUT Regulated output voltage. This pin is connected to the source of the internal N-mos. MLCC capacitor are supported. Filter to GND with capacitor smaller than the one used for VIN. |
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