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Two-phase Half-wave DC Brushless Fan Motor Drivers

These dual-phase, half-wave DC brushless fan motor drivers are optimized for AV and office equipment such as copiers and printers. 

RoHM'SDC Brushless Motor Drivers for Cooling Fans

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Specifications Part No. Package Features
24V compatible standard driver (FG·AL output)
BD6701F

SOP8
24V compatible variable speed driver with large current external transistor
BA6406F

SOP8
24V compatible variable speed driver with large current external transistor
BA6506F

SOP8
24V compatible variable speed driver with large current external transistor
BA6901F

SOP16
48V compatible variable speed driver with large current external transistor
BD6712AF

SOP8


Block Diagram
Expanded
  

Features

MOS output for high power with low power consumption

In order to put a large amount of power through the motor coil and remain within the specified power supply voltage it is important to minimize the power consumed by the IC. ROHM's fan motor drivers use MOS transistors with low ON-resistance at the output, enabling fan motors with high airflow and low power consumption.

Applicable Models : BD6701F

  
Expanded
Output voltage clamp circuit(BD6701F)
Lock-up protection circuit
Capacitor for setting the lockup detection time not required(BD6701F、BD6712AF,BD6506F)

Product Inquiries



DC Brushless Motor Drivers for Cooling Fans

Part No. Supply voltage
(V)		 lomax
(mA)		 Power Tr. Output
Saturation
Voltage
(V)		 Speed Control Hall
Bias
Voltage
(V)		 Zenner
Diode
Clamp
Voltage
(V)		 Output
Clamp
Voltage
(V)		 Lock
Time
Raito		 Package RoHS Distribution
Inventory
Reset
BD6701F 6.0 to 28.0 800 DMOS 0.3@200mA - - - 54 1:10 SOP8 Yes
BA6406F 4.0 to 28.0 70 Pre-driver - - - - - 1:4.5 SOP8 Yes
BA6506F 4.0 to 28.0 70 Pre-driver - - - - - 1:4.5 SOP8 Yes
BA6901F 3.5 to 28.0 70 Pre-driver - PWM - - - 1:10 SOP16 Yes
BD6712AF 3.5 to - 40 Pre-driver - - - 6 - 1:10 SOP8 Yes

 

* F=Forward, R=Reverse, S=Standby, B=Brake

Motor Drivers for
Brushless DC Cooling Fans

2008.12.18

Low Power Consumption 3-Phase Sensorless Notebook Fan Motor Driver