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VIPER319XDTR датащи(PDF) 3 Page - STMicroelectronics |
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VIPER319XDTR датащи(HTML) 3 Page - STMicroelectronics |
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3 / 40 page ![]() Pin number Name Function 8 COMP Compensation. This is the output of the internal E/A. A compensation network is placed between this pin and GND to achieve stability and good dynamic performance of the control loop. In case of secondary feedback, the internal E/A must be disabled and the COMP directly driven by the optocoupler to control the DRAIN peak current setpoint. 9 to 12 N.C. Not connected. These pins must be left floating in order to get a safe clearance distance. 13 to 16 DRAIN MOSFET drain. The internal high-voltage current source sources current from these pins to charge the VCC capacitor at startup. The pins are mechanically connected to the internal metal PAD of the MOSFET in order to facilitate heat dissipation. On the PCB, some copper areas under these pins decreases the total junction-to-ambient thermal resistance thus facilitating the power dissipation. VIPER31 Pin setting DS13285 - Rev 3 page 3/40 |
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