BM2P137QK-Z

Overview

The BM2P137QK-Z is a non-isolated PWM DC/DC converter IC with an integrated switching MOSFET. It features a fixed switching frequency of 100 kHz and supports an input voltage range from 10.6 V to 14.05 V. The device incorporates an 800 V super junction MOSFET and a built-in starter circuit. Key electrical parameters include a maximum drain voltage of 800 V, an on-resistance of 7.5 Ω, and an operating temperature range of -40 °C to +105 °C. It utilizes current mode control for per-cycle current limiting and includes soft start and thermal shutdown functions.

Feature Summary

• Integrates an 800 V super junction MOSFET and starter circuit for simplified design
• Employs current mode control with per-cycle current limiting for superior transient response
• Features frequency hopping and burst operation at light load to reduce EMI and power consumption

Applications

• Power supply systems for products with AC sockets
• Non-isolated high-efficiency converter designs
• Small-sized power supply applications utilizing built-in current detection resistors

Procurement Notes

Verify the specific suffix 'Z' indicates the correct packaging format, which is documented as tube with a factory pack quantity of 2000 units. Confirm that the component meets RoHS standards as indicated in the specifications. Ensure the application environment remains within the specified operating temperature range of -40 °C to +105 °C. Check for any regional compliance requirements relevant to standard-grade industrial components.

Selection Notes

Select this IC for non-isolated AC/DC conversion where high efficiency and compact size are priorities. The integrated 800 V MOSFET eliminates the need for external high-voltage switches. Current mode control ensures stable performance under varying load conditions. The fixed 100 kHz frequency simplifies filter design while frequency hopping aids in meeting EMI regulations without complex shielding.

Part Context

This component belongs to the BM2P series of AC/DC converters manufactured by ROHM Semiconductor. The series focuses on achieving high efficiency and miniaturization through integrated power MOSFETs and comprehensive protection circuits. The BM2P137QK-Z specifically targets non-isolated applications, offering a solution for reducing light-load power consumption while maintaining robust performance in standard-grade electronic equipment.

Replacement Considerations

The BM2P137QKF is a related variant within the same family, distinguished primarily by its SOP-8 package and tape-and-reel packaging instead of the DIP-7K tube format. Both share identical electrical characteristics, including the 800 V rating and 100 kHz frequency. Designers should verify pin compatibility and thermal dissipation requirements when substituting between these package types.