BM6243FS-E2

Overview

The BM6243FS-E2 is a three-phase brushless fan motor driver manufactured by ROHM Semiconductor. It integrates PrestoMOS output transistors and a gate driver into a single surface-mount package. The device supports a maximum power supply voltage of 600 V and delivers an output current of up to 2.5 A. It utilizes 180-degree sinusoidal drive control and accepts DC speed control inputs. The component operates within a temperature range of -40°C to +125°C and is housed in a large SSOP-A54-23 package measuring 22.0 x 14.1 mm with a height of 2.4 mm.

Feature Summary

• Integrates high-voltage PrestoMOS output transistors with a gate driver for compact design
• Supports 180-degree sinusoidal drive for smooth motor operation
• Includes comprehensive protection circuits such as overcurrent, thermal shutdown, and under-voltage lockout
• Features open-drain fault output for system monitoring

Applications

• Air conditioning systems
• Industrial ventilation fans
• HVAC cooling units

Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm compliance with current environmental standards and pin compatibility. Ensure the ordering quantity aligns with the factory reel packaging requirements specified in the official documentation. Confirm that the application circuit supports the 600V rating and that the PCB layout accommodates the SSOP-A54-23 footprint dimensions accurately.

Selection Notes

Select this component when designing high-voltage three-phase brushless motor drives requiring integrated power switching. The 600V rating suits applications connected directly to rectified mains or high-voltage DC buses. The sinusoidal drive mode reduces acoustic noise compared to standard six-step commutation. Verify that the external controller chip, such as the BD6201x series, is compatible with the logic input levels and communication interface required for the specific system architecture.

Part Context

This part belongs to ROHM's PrestoMOS family, which combines high-voltage MOSFETs with control logic. The BM6243FS-E2 is designed to replace discrete solutions, reducing board space and assembly complexity. It is distinct from lower-voltage variants like the BM6241FS-E2 due to its 600V capability. The device is intended for general-purpose industrial and consumer appliance motor control rather than automotive use.

Replacement Considerations

Check for direct substitutes within the BM6243 series or other ROHM high-voltage fan drivers. Ensure any replacement maintains the 600V rating, 2.5A output current, and SSOP-A54-23 package type. Verify functional equivalence regarding the sinusoidal drive mode and protection features before substitution.