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Product Detailed Parameters
- Description：THIS 3-PHASE BRUSHLESS FAN MOTOR
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Multiphase
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (3)
- Interface：PWM
- Technology：NMOS
- Step Resolution：-
- Applications：Fan Motor Driver
- Current - Output：2.5A
- Voltage - Supply：400V
- Voltage - Load：600V
- Operating Temperature：150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：54-SOP (0.449", 11.40mm Width), 36 Leads
- Supplier Device Package：SSOP-A54_36
- Grade：-
- Qualification：-
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Overview
The BM6249FS-E2 is a high-voltage three-phase brushless DC motor driver manufactured by ROHM Semiconductor. It integrates control and power stages for fan motors, supporting commutation angles of 120°, 150°, and 180° (sine wave drive). The device operates with a supply voltage up to 400 V and withstands load voltages of 600 V. It delivers an output current of 2.5 A and functions within a temperature range of -40°C to +125°C. The component utilizes NMOS technology and accepts PWM interface signals. It is housed in a 54-pin SSOP-A54_36 package.
Feature Summary
- Integrates full control and power stages for three-phase BLDC motors
- Supports multiple commutation modes including 120°, 150°, and sine wave drive
- Compatible with Hall sensor-equipped motors
- High voltage tolerance for direct connection to high-voltage power lines
Applications
- Fan motor drivers for air conditioners
- Fan motor drivers for air purifiers
- Residential equipment fan motors
Procurement Notes
Verify the specific suffix E2 against the manufacturer's datasheet to confirm compliance with RoHS3 standards and REACH regulations. Confirm the package variant matches the required pin count and footprint dimensions. Ensure the ordering quantity aligns with the standard factory packaging specifications provided by ROHM Semiconductor.
Selection Notes
Select this component when designing systems requiring high-voltage integration for three-phase brushless fans. It is suitable for applications needing support for various commutation angles, including sine wave drive for reduced noise. Consider the thermal performance and operating temperature limits when designing the heat dissipation strategy for the SSOP-A54_36 package.
Part Context
This part belongs to the BM6249 series of high-voltage three-phase BLDC motor drivers from ROHM. The series includes variants with different output current capabilities, such as the BM6248FS which supports 1.5 A. These components are designed specifically for household appliances, offering a compact solution for controlling fan motors in air conditioning and purification units.
Replacement Considerations
The BM6248FS is a related model within the same family but offers a lower output current rating of 1.5 A compared to the 2.5 A capability of the BM6249FS. Verify if the reduced current capacity meets the specific load requirements of the target application before substitution.
