BM1P105FJ

Overview

The BM1P105FJ-E2 is an AC/DC converter PWM control IC manufactured by ROHM Semiconductor. It utilizes Silicon technology and operates with a fixed switching frequency of 100 kHz. The device supports a maximum duty cycle of 82% and features a low operating supply current of 600 µA. It is designed for surface mount installation in SOP-8 packages, functioning within a junction temperature range of -40°C to +85°C.

Feature Summary

• Integrates PWM control logic for AC/DC conversion applications
• Includes built-in protection mechanisms such as thermal shutdown and under-voltage lockout
• Supports high-voltage monitoring and zero-cross detection functions

Applications

• AC/DC power supply designs
• Industrial equipment auxiliary power circuits
• Consumer electronics power management

Procurement Notes

Verify the specific suffix (e.g., -E2) against the official datasheet to confirm package type and environmental compliance. Ensure the selected variant matches the required voltage ratings and operational temperature ranges for the target application environment before finalizing procurement orders.

Selection Notes

Select this component for designs requiring integrated PWM control without external discrete drivers. Consider the 100 kHz switching frequency for EMI trade-offs and the SOP-8 package for space-constrained layouts. Verify input voltage compatibility with the specified minimum and maximum supply limits.

Part Context

This part belongs to ROHM's AC/DC converter IC portfolio, designed to simplify power supply development by integrating control logic and protection features. It targets applications needing reliable, compact solutions for converting AC mains or high-voltage DC sources to regulated lower voltages.

Replacement Considerations

Consult official substitution lists for compatible ROHM series components. Verify pin compatibility and electrical specifications before replacing with alternative part numbers.