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1203P60 - NCP1203

General Description

Pin No.

1 Pin Name Adj Function Adjust the skipping peak current Pin Description 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.

Key Features

  • a high.
  • voltage startup FET which ensures a clean and loss.
  • less startup sequence. Its current.
  • mode control naturally provides good audio.
  • susceptibility and inherent pulse.
  • by.
  • pulse control. When the current setpoint falls below a given value, e. g. the output power demand diminishes, the IC automatically enters the so.
  • called skip cycle mode and provides improved efficiency at light loads while offering excellent performance in standby conditio.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NCP1203 PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Standby and Short Circuit Protection Housed in SOIC−8 or PDIP−8 package, the NCP1203 represents a major leap toward ultra−compact Switchmode Power Supplies and represents an excellent candidate to replace the UC384X devices. Due to its proprietary SMARTMOSt Very High Voltage Technology, the circuit allows the implementation of complete off−line AC−DC adapters, battery charger and a high−power SMPS with few external components. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz switching frequency, the controller features a high−voltage startup FET which ensures a clean and loss−less startup sequence.