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NCP1129 - High-Voltage Switcher

This page provides the datasheet information for the NCP1129, a member of the NCP1124 High-Voltage Switcher family.

Datasheet Summary

Description

Pin No.

This pin is connected to an external auxiliary voltage and supplies the controller.

level, the part fully latches off.

Features

  • include: a timer to detect an overload or a short.
  • circuit event with auto.
  • recovery or latch protection, and a built.
  • in VCC overvoltage protection. The switcher also provides a jittered 65 kHz or 100 kHz switching frequency to improve the EMI. Features.
  • Built.
  • in 650 V, 1 A MOSFET with RDS(on) of 8.6 W for NCP1124.
  • Built.
  • in 650 V, 1.8 A MOSFET with RDS(on) of 5.4 W for NCP1126.
  • Built.
  • in 650 V, 5.5 A MOSFET with RDS(on) of 2.

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Datasheet preview – NCP1129

Datasheet Details

Part number NCP1129
Manufacturer ON Semiconductor
File Size 194.13 KB
Description High-Voltage Switcher
Datasheet download datasheet NCP1129 Datasheet
Additional preview pages of the NCP1129 datasheet.

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Full PDF Text Transcription

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NCP1124, NCP1126, NCP1129 High Voltage Switcher for Offline Power Supplies The NCP112x products integrates a fixed−frequency peak current mode controller with a low on−resistance, 650 V MOSFET. Available in a PDIP−7 package, the NCP112x offers a high level of integration, including soft−start, frequency−jittering, short−circuit protection, thermal shutdown protection, frequency foldback mode and skip−cycle to reduce power consumption in light load condition, peak current mode control with adjustable internal ramp compensation and adjustable peak current set point. During nominal load operation, the part switches at one of the available frequencies (65 or 100 kHz).
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