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NCL30125 - Current-Mode Controller

Datasheet Summary

Description

Pin No.

Description Connected to the rectified ac line, this pin powers the internal current source to deliver a startup current.

connected fo

Features

  • a timer.
  • based fault detection that ensures the detection of overload and a brown.
  • out protection against low input voltages. Features.
  • Integrated High.
  • side Driver.
  • Adjustable Switching Frequency Up to 300 kHz.
  • Peak Current.
  • mode Control.
  • Skip Mode to Maximize Performance in Light Load Conditions.
  • High.
  • voltage Current Source with DSS.
  • Brown.
  • out (BO) Detection.
  • Internal Slope Compensation.
  • Adjustable Soft.

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Datasheet preview – NCL30125

Datasheet Details

Part number NCL30125
Manufacturer ON Semiconductor
File Size 786.50 KB
Description Current-Mode Controller
Datasheet download datasheet NCL30125 Datasheet
Additional preview pages of the NCL30125 datasheet.

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Full PDF Text Transcription

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DATA SHEET www.onsemi.com Current-Mode Controller, Fixed Frequency, for Two-Switch Forward Converter NCL30125 The NCL30125 is a fixed−frequency current−mode controller featuring the Dynamic Self−Supply (DSS). This function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal startup current source to supply the controller during start−up, transients, latch, stand−by etc. With a supply range up to 35 V, the controller hosts an adjustable switching frequency with jittering function operated in peak current mode control. When the power on the secondary side drops drastically, the part enters skip cycle while limiting the peak current that insures the output voltage regulation and excellent efficiency in light load condition.
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