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Product Detailed Parameters
- Description：IC MOTOR DRIVER 0V-7V 14SSOPB
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (2)
- Interface：PWM
- Technology：Power MOSFET
- Step Resolution：-
- Applications：Fan Motor Driver
- Current - Output：1A
- Voltage - Supply：3.5V ~ 17V
- Voltage - Load：20V
- Operating Temperature：-40°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：14-LSSOP (0.173", 4.40mm Width)
- Supplier Device Package：14-SSOP-B
- Grade：-
- Qualification：-
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Overview
The BD6971FV-E2 is a fan motor controller and driver manufactured by ROHM Semiconductor. It integrates a Microwire bus interface with 64Kbit EEPROM for configuration storage. The device supports a supply voltage range of 3.5 V to 17 V and delivers an output current of 1 A. It features two half-bridge outputs capable of handling load voltages up to 20 V. Operating temperatures span from -40°C to +100°C, with power dissipation rated at 874.7 mW. The component utilizes a 14-SSOP-B package.
Feature Summary
- Integrates Microwire serial communication interface for system control
- Includes embedded 64Kbit EEPROM for persistent parameter storage
- Combines control logic and power MOSFET stages in a single unit
Applications
- Brushless DC (BLDC) fan motor control
- Appliance cooling systems
- HVAC unit drive circuits
Procurement Notes
Verify the specific suffix E2 against the official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the SSOP-B-14 package dimensions align with the target PCB footprint. Confirm that the Microwire interface protocol matches the host microcontroller's capabilities before integration.
Selection Notes
Select this component when a compact solution combining PWM driving and non-volatile memory is required. The integrated EEPROM reduces external component count compared to discrete driver solutions. Verify that the 1 A output current meets the specific load requirements of the intended fan motor application.
Part Context
This part belongs to the BD6971 series of multifunction single-phase full-wave controllers. It is designed specifically for fan motor applications requiring precise speed control and status monitoring. The family typically includes variants with different packaging or minor electrical adjustments, but all share the core integrated driver and EEPROM architecture.
Replacement Considerations
The part number alias BD6971FV indicates a potential variant without the E2 suffix. Cross-reference the electrical specifications and pin assignments between these versions to ensure functional equivalence before substitution.
