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NCP1219 - PWM Controller

Description

Skip/latch This pin provides a latch input to permanently disable the device under a fault condition.

adjust the skip threshold.

the skip threshold.

Features

  • Fixed.
  • Frequency Current.
  • Mode Operation with Ramp Compensation (65 kHz and 100 kHz Options).
  • Dynamic Self Supply Eliminates the Need for an Auxiliary Winding.
  • Timer.
  • Based Fault Protection for Improved Overload Detection.
  • Cycle Skip Reduces Input Power in Standby Mode.
  • Latch and Auto.
  • Recovery Overload Protection Options.
  • Internal High Voltage Startup Circuit.
  • Accurate Current Limit Detector (±5%).

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Datasheet preview – NCP1219

Datasheet Details

Part number NCP1219
Manufacturer onsemi
File Size 172.39 KB
Description PWM Controller
Datasheet download datasheet NCP1219 Datasheet
Additional preview pages of the NCP1219 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com PWM Controller with Adjustable Skip Level and External Latch Input NCP1219 The NCP1219 represents a new, pin to pin compatible, generation of the successful 7−pin current mode NCP12XX product series. The controller allows for excellent standby power consumption by use of its adjustable skip mode and integrated high voltage startup FET. Internal frequency jittering, ramp compensation, timer−based fault detection and a latch input make this controller an excellent candidate for converters where ruggedness and component cost are the key constraints. The Dynamic Self Supply (DSS) drastically simplifies the transformer design in avoiding the use of an auxiliary winding to supply the NCP1219.
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