NCP4355BDR2G

Power Supply Controllers, Monitors Overview

The NCP4355BDR2G is a secondary side controller for Switched Mode Power Supplies (SMPS) manufactured by onsemi. It operates within a supply voltage range of 2.5 V to 36.0 V and supports a maximum switching frequency of 1 kHz. The device is housed in an 8-pin SOIC package with surface mount technology. It provides an output current capability of 10 mA and an output voltage of 40.3 V. Designed for flyback topologies, it functions as a PFC controller and SMPS OFF mode regulator.

Power Supply Controllers, Monitors Feature Summary

• Secondary side control for SMPS applications
• Supports Flyback topology configurations
• Integrated PFC controller functionality
• Operates in SMPS OFF mode

Power Supply Controllers, Monitors Applications

• Flyback AC/DC converter designs
• Secondary side regulation in power supplies
• PFC controller implementations

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm pinout and electrical characteristics, as variations exist within the NCP4355 family. Ensure compatibility with the target flyback topology and input voltage requirements. Confirm RoHS compliance status through the manufacturer's documentation before integration into regulated equipment.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring secondary side control in flyback converters. It is suitable for designs needing integrated PFC control and low-frequency operation around 1 kHz. Consider the 8-pin SOIC package constraints and the 10 mA output drive capability when designing the gate driver interface or sensing circuitry.

Power Supply Controllers, Monitors Part Context

This part belongs to the NCP4355 series from onsemi, categorized under PMIC and power supply controllers. It is distinct from primary side controllers like the NCP4355CDR2G, focusing instead on secondary side regulation. The series addresses efficiency improvements in offline power supplies through advanced control modes.

Power Supply Controllers, Monitors Replacement Considerations

The NCP4355CDR2G is a related variant within the same family but may differ in specific electrical parameters or pin configuration. Verify functional equivalence and pin compatibility before substitution. No other direct public substitutes are confirmed.