BM1R00148F-E2

AC DC Converters, Offline Switchers Overview

The BM1R00148F-E2 is a secondary side synchronous rectification controller IC designed for flyback converter topologies. It features a built-in ultra-low consumption shunt regulator to minimize standby power loss. The device supports high-side and low-side SR FET configurations with a 120V drain monitor voltage capability. Operating voltage ranges from 2.7V to 32V, accommodating various output applications. It operates in continuous conduction mode without requiring primary-side synchronization signals.

AC DC Converters, Offline Switchers Feature Summary

• Built-in ultra-low consumption shunt regulator significantly reduces standby power consumption
• Supports both high-side and low-side synchronous rectification FET configurations
• Enables operation in continuous conduction mode without primary-side switch synchronization signals
• Integrates overvoltage protection for SH_IN/SH_OUT terminals and thermal shutdown functions

AC DC Converters, Offline Switchers Applications

• Secondary side output stage of flyback converters
• Power supplies requiring reduced standby power consumption
• Applications utilizing LLC or PWM QR controllers

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix E2 against official ROHM documentation to confirm package type and compliance status. Confirm that the component meets RoHS standards as indicated in public specifications. Ensure the SOP-8 package dimensions align with your PCB layout requirements before finalizing procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for flyback designs prioritizing low quiescent current and simplified control logic. It is suitable for applications where avoiding primary-side synchronization signals reduces system complexity. Verify that the 120V drain monitor rating matches the transformer design constraints and that the operating temperature range fits the environmental conditions.

AC DC Converters, Offline Switchers Part Context

This part belongs to the BM1R001xx series of synchronous rectification controllers from ROHM Semiconductor. These ICs are engineered to enhance efficiency in isolated power supplies by replacing diode rectifiers with active MOSFET control. The series focuses on reducing standby power through integrated precision regulation mechanisms.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.