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Product Detailed Parameters
- Description：IC MOTOR DRIVER 2V-5.5V 8VSON
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (2)
- Interface：PWM
- Technology：BiCDMOS
- Step Resolution：-
- Applications：Fan Motor Driver
- Current - Output：800mA
- Voltage - Supply：2V ~ 5.5V
- Voltage - Load：0.4V ~ 7V
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Surface Mount
- Package / Case：8-UFDFN Exposed Pad
- Supplier Device Package：VSON008X2030
- Grade：-
- Qualification：-
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Overview
The BD6965NUX-TR is a single-phase brushless DC fan motor driver designed for low-voltage applications. It features a VSON008X2030 package measuring 2.0x3.0 mm with a thickness of 0.6 mm. The device supports a driver power supply voltage range of 2 V to 5.5 V and a Vcc maximum of 8 V. It delivers a maximum output current of 0.8 A using BTL drive type. Speed control is achieved via Direct PWM, and it includes a standby mode. The FG signal output is available. Operating temperature ranges from -40°C to 105°C.
Feature Summary
- Supports Direct PWM speed control to reduce external components
- Features BTL soft-switching drive technology
- Includes low duty cycle start-up assist function
- Provides FG output signal
Applications
- Notebook PC cooling fan motors
Procurement Notes
Verify the specific suffix TR indicates tape and reel packaging when ordering. Confirm RoHS compliance status as required by project specifications. Ensure the VSON008X2030 footprint matches the PCB design layout. Check that the operating voltage requirements align with the 2 V to 5.5 V range. Validate thermal management capabilities for the -40°C to 105°C operating temperature range.
Selection Notes
Select this component for single-phase BLDC fan applications requiring compact size and low voltage operation. The Direct PWM interface simplifies control circuitry compared to analog methods. Consider the 0.8 A output capability for appropriate fan loads. The thin package suits space-constrained designs like notebook PCs. Verify compatibility with the system's ground reference and PWM signal levels.
Part Context
This part belongs to ROHM Semiconductor's line of compact brushless fan motor drivers. It is engineered specifically for notebook PC cooling systems where small form factors and low power consumption are critical. The series emphasizes reduced external component counts through integrated Direct PWM control and soft-switching drives.
Replacement Considerations
The BD6964FVM-TR is a related single-phase driver but uses an MSOP-8 package and operates at higher voltages (3.3 V to 14 V). Verify package compatibility and voltage headroom before substitution. The BD6965NUX-TR is optimized for lower voltage 5 V systems with a thinner profile.
