BM2P104E-Z

Overview

The BM2P104E-Z is a PWM type DC/DC converter IC designed for AC-DC conversion applications. It integrates a high-voltage switching MOSFET with a breakdown voltage of 730V, enabling direct connection to high-voltage AC power supplies without external startup circuits. The device employs current mode control for stable operation and includes features such as thermal shutdown, under-voltage lockout, and auto-restart protection. It supports both isolated and non-isolated topologies, making it suitable for compact, low-power power supply designs.

Feature Summary

• Integrates a 730V耐压 super junction MOSFET for high-voltage direct drive
• Supports both isolated and non-isolated AC-DC converter topologies
• Includes built-in frequency hopping function to reduce electromagnetic interference
• Features current mode control with per-cycle current limiting for enhanced transient response

Applications

• Low-power AC-DC converters for household appliances
• Adapters for consumer electronics with electrical outlets
• Compact isolated power supply modules
• Non-isolated DC-DC conversion systems

Procurement Notes

Verify the package type carefully, as datasheets indicate SOP8 for the EF variant but DIP-7 or similar for the E-Z variant. Confirm RoHS compliance status and lead times with authorized distributors. Ensure the specific suffix matches the required pin configuration and thermal performance for your PCB layout.

Selection Notes

Select this component for designs requiring integrated high-voltage switching capabilities in a small footprint. It is suitable for applications needing fixed frequency operation around 100kHz with light-load efficiency improvements. Consider the thermal dissipation requirements of the chosen package when designing for maximum load conditions.

Part Context

This part belongs to the BM2P series of PWM DC/DC converters from ROHM Semiconductor. The series is optimized for AC-DC devices with electrical sockets, offering simplified design for low-power converters. The BM2P104E-Z specifically targets cost-sensitive, space-constrained applications where integrated high-voltage MOSFETs reduce component count.

Replacement Considerations

Check compatibility with BM2P104EF-E2 for package differences (SOP8 vs DIP). Verify if BM2P06xj-z variants meet the specific power and voltage requirements, noting potential differences in integrated MOSFET ratings and control features.