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NCP4355B - Secondary Side SMPS Controller

This page provides the datasheet information for the NCP4355B, a member of the NCP4355 Secondary Side SMPS Controller family.

Description

The NCP4355 is a secondary side SMPS controller designed for use in applications which require extremely low no load power consumption.

The device is capable of detecting “no load” conditions and entering the power supply into a low consumption OFF mode.

Features

  • Operating Input Voltage Range: 3.5 V to 36.0 V.
  • Supply Current < 100 mA.
  • ±0.5% Reference Voltage Accuracy (TJ = 25°C).
  • Constant Voltage and Constant Current (A and C versions) Control Loop.
  • Indication LED PWM Modulated Driver (except NCP4355C).
  • These Devices are Pb.
  • Free, Halogen Free/BFR Free and are RoHS Compliant Typical.

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Datasheet preview – NCP4355B

Datasheet Details

Part number NCP4355B
Manufacturer ON Semiconductor
File Size 196.83 KB
Description Secondary Side SMPS Controller
Datasheet download datasheet NCP4355B Datasheet
Additional preview pages of the NCP4355B datasheet.

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Full PDF Text Transcription

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NCP4355 Secondary Side SMPS OFF Mode Controller for Low Standby Power Description The NCP4355 is a secondary side SMPS controller designed for use in applications which require extremely low no load power consumption. The device is capable of detecting “no load” conditions and entering the power supply into a low consumption OFF mode. During OFF mode, the primary side controller is turned off and energy is provided by the output capacitors thus eliminating the power consumption required to maintain regulation. During OFF mode, the output voltage relaxes and is allowed to decrease to an adjustable level. Once more energy is required, the NCP4355 automatically restarts the primary side controller by ONOFF current that flows through ONOFF optocoupler.
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