BM2P121XH-Z

Overview

The BM2P121XH-Z is a non-isolated PWM DC/DC converter IC manufactured by ROHM Semiconductor, designed for AC/DC conversion applications. It integrates a 650V super junction MOSFET and a startup circuit within a DIP-7 package. The device operates with an input voltage range of 9.5 V to 12.96 V and maintains a fixed switching frequency of 65 kHz. Key electrical parameters include a quiescent current of 850 µA and an operating temperature range from -40°C to +105°C.

Feature Summary

• Integrates a 650V super junction MOSFET and startup circuit for simplified design
• Employs current mode control with per-cycle current limiting for superior transient response
• Features frequency hopping functionality to reduce electromagnetic interference (EMI)
• Supports burst operation at light loads to enhance system efficiency

Applications

• Non-isolated high-efficiency power supply designs
• Consumer electronics requiring compact AC/DC converters
• Devices utilizing standard wall outlets for power input

Procurement Notes

Verify the specific suffix 'XH' against official ROHM documentation to confirm pinout and packaging variations relative to other BM2P121 variants. Ensure compatibility with the intended thermal management requirements given the through-hole DIP-7 configuration. Cross-reference the datasheet for exact mechanical dimensions and soldering profiles before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring integrated switching capabilities without external MOSFETs. The fixed 65 kHz frequency and built-in EMI reduction features make it suitable for noise-sensitive environments. Consider the 850 µA standby current when designing for strict low-power consumption standards in plugged-in devices.

Part Context

This part belongs to the BM2P121 series of AC/DC controllers from ROHM Semiconductor. These ICs are engineered to minimize component count by integrating high-voltage MOSFETs and protection circuits. The series targets cost-effective and space-constrained power supply solutions for general consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.