BM1P105FJ-E2

AC DC Converters, Offline Switchers Overview

The BM1P105FJ-E2 is an AC/DC converter PWM control IC manufactured by ROHM Semiconductor. It utilizes Silicon technology and operates within a supply voltage range of 8.9 V to 26 V, delivering a fixed output voltage of 12.5 V. The device features a switching frequency of 100 kHz with a maximum duty cycle of 82%. It draws a typical operating supply current of 600 µA. Designed for surface mount installation in SOP-8 packages, it supports an extended operating temperature range from -40°C to +85°C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates PWM control functionality for AC/DC conversion applications
• Eliminates the need for photocouplers through direct feedback mechanisms
• Includes built-in protection circuits for enhanced system reliability

AC DC Converters, Offline Switchers Applications

• AC/DC power supply designs
• Consumer electronics power adapters
• Industrial control system power modules

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix E2 against the official ROHM datasheet to confirm package type and environmental compliance status. Ensure that the SOP-8 footprint matches your PCB layout requirements. Cross-reference the electrical parameters with the latest revision of the product specification sheet to avoid discrepancies in supply voltage or thermal ratings during procurement.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing isolated AC/DC converters requiring integrated PWM control without external optocouplers. Consider the 100 kHz switching frequency and 600 µA standby current for efficiency targets. Verify that the 8.9 V to 26 V input range aligns with your rectified line voltage. Confirm SOP-8 package compatibility and -40°C to +85°C operational limits for your specific application environment.

AC DC Converters, Offline Switchers Part Context

The BM1P105FJ-E2 belongs to ROHM's series of AC/DC converter ICs designed for cost-effective and compact power solutions. It integrates high-voltage startup and PWM control into a single chip, reducing component count compared to discrete solutions. This family targets applications where size reduction and simplified design are priorities, offering a robust alternative to traditional multi-component flyback controller architectures.

AC DC Converters, Offline Switchers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.