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NCP1203D60R2 Datasheet(PDF) 2 Page - ON Semiconductor |
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NCP1203D60R2 Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 14 page NCP1203 http://onsemi.com 2 Figure 1. Typical Application Example EMI FILTER UNIVERSAL INPUT + + NCP1203 + VOUT Aux. Adj FB CS GND HV VCC Drv 1 2 3 4 8 7 6 5 * *Please refer to the application information section PIN FUNCTION DESCRIPTION Pin No. Pin Name Function Pin Description 1 Adj Adjust the skipping peak current This pin lets you adjust the level at which the cycle skipping process takes place. Shorting this pin to ground, permanently disables the skip cycle feature. 2 FB Sets the peak current setpoint By connecting an optocoupler to this pin, the peak current setpoint is adjusted accordingly to the output power demand. Skip cycle occurs when FB falls below Vpin1. 3 CS Current sense input This pin senses the primary current and routes it to the internal comparator via an L.E.B. 4 GND The IC ground − 5 Drv Driving pulses The driver’s output to an external MOSFET. 6 VCC Supplies the IC This pin is connected to an external bulk capacitor of typically 22 mF. 7 NC − This unconnected pin ensures adequate creepage distance. 8 HV Ensure a clean and lossless startup sequence Connected to the high−voltage rail, this pin injects a constant current into the VCC capacitor during the startup sequence. |
Similar Part No. - NCP1203D60R2 |
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Similar Description - NCP1203D60R2 |
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