BM1C102F-GE2

Overview

The BM1C102F-GE2 is a Power Factor Correction (PFC) and Quasi-Resonant DC/DC converter IC designed for AC/DC power supplies. It integrates a PFC stage operating in Boundary Conduction Mode (BCM) with voltage control and Zero Current Detection (ZCD), eliminating the need for auxiliary windings. The DC/DC section utilizes a quasi-resonant topology for soft switching to reduce EMI. Key electrical parameters include a maximum switching frequency of 120 kHz, an input voltage range of 8.9 V to 26 V, and operation within a temperature range of -40°C to +105°C. It features a built-in 650V tolerance start circuit and X-cap discharge function.

Feature Summary

• Integrates PFC and QR DC/DC converters in a single IC to minimize component count.
• Employs BCM PFC with ZCD to lower switching losses without auxiliary windings.
• Includes a 650V tolerant start circuit and X-cap discharge capability.
• Supports burst operation at light loads to enhance efficiency.

Applications

• AC/DC adapters for consumer electronics
• Power supplies for appliances with socket interfaces
• Low standby power consumption designs

Procurement Notes

Verify the current lifecycle status before integration, as this component may be designated as Not Recommended for New Designs (NRND). Confirm package availability and datasheet revisions directly with ROHM Semiconductor or authorized distributors. Ensure compliance with RoHS directives and check for any specific handling requirements associated with the SOP-18 packaging format.

Selection Notes

Select this IC for applications requiring high efficiency through zero-current detection and reduced magnetic component size. It is suitable for designs needing integrated protection features such as OVP, brown-out, and thermal shutdown. Consider the external MOSFET requirement for the PFC stage when evaluating system cost and layout constraints compared to fully integrated solutions.

Part Context

The BM1C102F belongs to ROHM's series of combo PFC and DC/DC controller ICs. These components are engineered to simplify power supply design by combining critical conversion stages into one package. The GE2 suffix typically indicates a lead-free and halogen-free compliant version of the standard BM1C102F part number.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative ROHM models such as the BM1C001F-GE2 based on specific application requirements.