BM6241FS-E2

Overview

The BM6241FS-E2 is a three-phase brushless fan motor driver manufactured by ROHM Semiconductor. It integrates MOSFET output transistors and a gate driver into a single SSOP-A54-23 surface-mount package. The device supports a maximum power supply voltage of 250 V and delivers an output current of 2 A. It operates on a 180-degree sinusoidal drive type with DC speed control. Key electrical parameters include a 700 uA operating supply current, a minimum operating temperature of -40 C, and a maximum operating temperature of +125 C. The component features four outputs and includes built-in protection circuits such as overcurrent, overheating, and undervoltage lockout.

Feature Summary

• Integrates MOSFET output transistors and gate driver in a compact surface-mount package for board miniaturization
• Supports bootstrap operation via floating high-side driver including diode
• Compatible with 3.3V logic input signals
• Includes comprehensive protection circuits: overcurrent, thermal shutdown, undervoltage lockout, and external fault input

Applications

• Air conditioner fan motors
• Purifier fan motors
• Residential equipment fan motors

Procurement Notes

Verify the specific suffix E2 to confirm RoHS compliance and lead time requirements. Confirm the SSOP-A54-23 package dimensions match the target PCB footprint. Ensure the design accommodates the 250 V maximum voltage rating and 2 A current capability. Check humidity sensitivity handling procedures during assembly. Validate compatibility with the intended controller chip, such as the BD6201x series, for complete system functionality.

Selection Notes

Select this component for applications requiring a 250 V rated three-phase brushless motor driver with integrated MOSFETs. It is suitable for designs needing sinusoidal drive modes and DC speed control. Consider the 125 C maximum operating temperature for high-thermal environments. Ensure the system can support the required 700 uA standby current if low power consumption is critical. Verify that the 3.3V logic interface aligns with the host microcontroller.

Part Context

The BM6241FS-E2 belongs to ROHM's family of high-voltage three-phase brushless DC motor drivers. These devices are designed for use with motors equipped with Hall sensors. The series offers various current ratings from 1.5 A to 2.5 A and voltage耐压 up to 600 V. This specific model targets standard-grade applications in home appliances, distinguishing itself with a 2 A output and 250 V rating within the SSOP-A54_23 package form factor.

Replacement Considerations

BM6248FS-E2

FAQ

What drive mode does the BM6241FS-E2 support?

It supports a 180-degree sinusoidal drive mode.

Is the BM6241FS-E2 recommended for automotive equipment?

No, it is not recommended for use in automotive equipment.

What protection features are built into the BM6241FS-E2?

It includes overcurrent protection, thermal shutdown (TSD), undervoltage lockout (UVLO), and an external fault input.