DC Brushless Motor Driver Series for Cooling Fans

Fan motors are being increasingly used in high performance, high speed electronic devices such as PCs, gaming consoles and AV/Office equipment. ROHM's DC brushless fan motor drivers meet the stringent demands of even the most sophisticated products by featuring the latest technologies, including MOS output drives for large airflow and soft switching functionality in order to reduce electromagnetic noise, while multiple built-in protection circuits ensure the utmost in reliability.

Broad Lineup DC Brushless Motor Driver Series for Cooling Fans

| Low-voltage Single-phase Full-wave DC Brushless Fan Motor Drivers | Standard Signal-phase Full-wave DC Brushless Fan Motor Drivers | PWM Speed-controllable Signal-phase Full-wave DC Brushless Fan Motor Drivers | Multifunction Speed-controllable Signal-phase Full-wave DC Brushless Fan Motor Drivers | Two-phase Half-wave DC Brushless Fan Motor Drivers |

Low-voltage Single-phase Full-wave DC Brushless Fan Motor Drivers Soft switching drive ensures silent operation Direct PWM speed control input reduces the number of parts required(BD6989FVM,BD6963FUJ,BD6965NUX) Compact package reduces mounting area	Standard Signal-phase Full-wave DC Brushless Fan Motor Drivers Soft switching drive ensures silent operation(BA6908F,BA6906F) 24V power supply compatibility(BA6423AF,BA6424AFS) Built-in lock-up protection circuit

PWM Speed-controllable Signal-phase Full-wave DC Brushless Fan Motor Drivers Speed control via direct PWM input Soft switching enables silent driving MOS output ensures high power capability with low power consumption	Multifunction Speed-controllable Signal-phase Full-wave DC Brushless Fan Motor Drivers Soft switching drive ensures silent operation(BD6721FS,BD6722FS,BD6973FV) Pre-driver built in for large current capability(BD6722FS) Built-in current limiter and soft start function

Two-phase Half-wave DC Brushless Fan Motor Drivers MOS output ensures high power capability with low power consumption(BD6706FV,BD6701F) Integrated output voltage clamp circuit(BD6706FV、BD6701F) Built-in lock-up protection circuit