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Product Detailed Parameters
- Description：MULTIFUNCTION SINGLE-PHASE FULL-
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：Controller - Commutation, Direction Management
- Output Configuration：Pre-Driver - Half Bridge (2)
- Interface：PWM
- Technology：Power MOSFET
- Step Resolution：-
- Applications：General Purpose
- Current - Output：10mA
- Voltage - Supply：4.5V ~ 16V
- Voltage - Load：18V
- Operating Temperature：-40°C ~ 105°C
- 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 BD61251FV-E2 is a multifunction single-phase full-wave fan motor driver IC from ROHM Semiconductor. It serves as a pre-driver for an H-bridge output composed of external MOS FETs, supporting DC brushless motors. The device operates within a supply voltage range of 4.5V to 16V and features a maximum output current of 10mA per channel. It supports PWM interface control and functions at frequencies up to 100 kHz. The component is housed in a 16-pin SSOP-B package with a bare pad for thermal dissipation. It operates across a temperature range of -40°C to +105°C and includes protection features such as overcurrent detection.
Feature Summary
- Integrates pre-driver functionality for single-phase H-bridge configurations using external MOS FETs
- Supports PWM input signals for precise speed and direction control of brushless DC motors
- Incorporates built-in overcurrent detection mechanisms to protect the motor and driver circuitry
Applications
- Fan motor drivers for cooling systems
- Single-phase brushless DC motor control in home appliances
- Small appliance motion control modules
Procurement Notes
Verify the specific suffix E2 confirms RoHS3 compliance and lead-free status when ordering. Confirm the SSOP-B-16 package variant matches the target PCB footprint. Check for any regional export classification requirements under EAR99. Ensure the design accounts for the required external MOS FETs and associated thermal management components specified in the datasheet.
Selection Notes
Select this component for applications requiring a dedicated pre-driver for single-phase BLDC fans where external power switches are preferred. It is suitable for designs needing integrated overcurrent protection and PWM compatibility. Consider the thermal performance of the SSOP-B package and the need for adequate heat sinking or PCB copper area to manage junction temperature under load conditions.
Part Context
This part belongs to the BD6125x series of motor drivers designed by ROHM Semiconductor. It is specifically optimized for fan motor applications, offering a compact solution for controlling single-phase brushless DC motors. The series integrates control logic with pre-driver stages, simplifying the design of efficient and reliable motor control systems for consumer electronics and appliances.
Replacement Considerations
The BD61250MUV-E2 is a related single-phase driver but uses a VQFN-24 package and supports higher voltages up to 36V. Verify pinout compatibility and voltage ratings before substitution. No other direct public substitutes are confirmed.
