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Product Detailed Parameters
- Description：IC MOTOR DRIVER 4.3V-17V 16SSOPB
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Controller - Speed
- Output Configuration：Pre-Driver - Half Bridge (2)
- Interface：PWM
- Technology：Power MOSFET
- Step Resolution：-
- Applications：Fan Controller
- Current - Output：-
- Voltage - Supply：4.3V ~ 17V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-LSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-SSOP-B
- Grade：-
- Qualification：-
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Overview
The BD6974FV-E2 is a single-phase full-wave fan motor driver manufactured by ROHM Semiconductor. It integrates a Microwire bus interface and 64Kbit EEPROM for configuration storage. The device operates within a supply voltage range of 4.3 V to 17 V and supports a maximum power dissipation of 874.7 mW. It functions as a pre-driver with two half-bridge outputs, utilizing Power MOSFET technology. The component is housed in a 16-SSOP-B package and is rated for an operating temperature range from -40°C to +100°C.
Feature Summary
- Integrates Microwire serial communication interface for control and data transfer
- Includes onboard 64Kbit EEPROM for non-volatile parameter storage
- Provides dual half-bridge pre-driver outputs for external power stage driving
Applications
- Fan motor speed control systems
- Appliance motion controller circuits
- Single-phase brushless DC motor drive applications
Procurement Notes
Verify the current lifecycle status before integration, as this component may be marked as Not Recommended for New Designs (NRND). Confirm that the specific SSOP-B-16 package dimensions align with the target PCB footprint. Ensure the Microwire bus protocol requirements are compatible with the host microcontroller or system architecture. Check for any RoHS compliance documentation updates if environmental regulations apply to the final product assembly.
Selection Notes
Select this component when a dedicated single-phase fan driver with integrated memory and serial interface is required. It is suitable for designs needing precise speed control via PWM input and configuration retention through EEPROM. Consider the 16-pin SSOP-B package constraints and the 4.3 V to 17 V supply range. Evaluate the thermal performance against the 874.7 mW dissipation limit in the intended enclosure environment.
Part Context
This part belongs to the BD6974 series of fan motor controllers from ROHM Semiconductor. It is designed specifically for single-phase AC or DC fan applications requiring simple interface and reliable operation. The family typically includes variants with different pin counts or feature sets, but this specific model emphasizes the combination of pre-driving capabilities with embedded memory and serial communication.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design files if considering alternative drivers from other manufacturers.
