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AP3842GM Datasheet(PDF) 2 Page - BCD Semiconductor Manufacturing Limited |
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AP3842GM Datasheet(HTML) 2 Page - BCD Semiconductor Manufacturing Limited |
2 / 13 page GREEN MODE PWM CONTROLLER AP384XG Data Sheet 2 Aug. 2005 Rev. 1. 2 BCD Semiconductor Manufacturing Limited Figure 2. Pin Configuration of AP384XG P/M Package (DIP-8/SOIC-8) Pin Configuration COMP CS FB RT/CT 8 REF 7 VCC 6 OUTPUT 5 GND 1 2 3 4 Pin Description Pin Number Pin Name Function 1 COMP This pin is the Error Amplifier output and is made available for loop compensation. 2 FB The inverting input of the Error Amplifier. It is normally connected to the switching power supply output through an external resistor divider. 3 CS It is used either for current sense (normal mode) or skip cycle level selection (standby mode). 4RT/CT The oscillator frequency and maximum output duty cycle are programmed by connecting resistor RT to REF and capacitor CT to ground. 5 GND The ground pin. 6 OUTPUT This output directly drives the gate of a power MOSFET. Peak currents up to 1.0 A are sourced and sunk by this pin. 7 VCC The power supply pin. 8REF This is the reference output. It provides charging current for capacitor CT through resistor RT. |
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