BM2P131HK-LBZ

AC DC Converters, Offline Switchers Overview

The BM2P131HK-LBZ is a PWM type DC/DC converter IC manufactured by ROHM Semiconductor, designed for AC/DC conversion applications. It features an integrated switching MOSFET with a 650V breakdown voltage and utilizes Silicon technology. The device operates within a supply voltage range of 10.9V to 30V and supports a maximum duty cycle of 82%. It offers selectable switching frequencies of 65kHz, 100kHz, or 130kHz to optimize efficiency and EMI performance. The IC draws a typical operating supply current of 1mA and functions reliably across a temperature range from -40°C to +105°C. It is housed in a DIP-7 through-hole package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a 650V super junction MOSFET with the controller for compact design
• Supports fixed switching frequencies of 65kHz, 100kHz, and 130kHz
• Includes frequency hopping function to reduce electromagnetic interference
• Features burst operation at light load for improved efficiency

AC DC Converters, Offline Switchers Applications

• AC/DC converters for industrial equipment
• Power supplies for home appliances
• Auxiliary power sources for consumer electronics

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific switching frequency variant required (65kHz, 100kHz, or 130kHz) as this parameter may vary within the product line. Confirm that the DIP-7 through-hole package aligns with the target PCB layout requirements. Ensure the application does not involve automotive environments, as standard grade parts are generally unsuitable for such conditions. Check RoHS compliance documentation for final assembly specifications.

AC DC Converters, Offline Switchers Selection Notes

Select this component when a non-isolated or isolated PWM topology is required with integrated power switching capabilities. The choice depends on the desired switching frequency to balance between component size and noise emissions. Consider the 1mA quiescent current for standby power constraints. The wide operating temperature range makes it suitable for diverse environmental conditions without additional thermal management.

AC DC Converters, Offline Switchers Part Context

This part belongs to the BM2P series of AC/DC converter ICs from ROHM Semiconductor. The series is characterized by built-in high-voltage MOSFETs and various protection circuits. The BM2P131HK-LBZ specifically represents a variant optimized for higher switching frequencies compared to lower-power counterparts, facilitating smaller transformer sizes in power supply designs.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing should be performed using official ROHM selection guides or distributor databases for compatible PWM controllers with similar voltage ratings and package types.