DC Brushless Fan Motor Driver
Standard Single-phase Full wave
Fan motor driver
This is the summary of application for BD6964F. BD6964F can drive FAN motor silently by BTL soft switching, and it can
control rotational speed by PWM signal.
■ BTL soft switching drive
■ PWM speed control
■ Quick start function
■ Lock protection and auto restart
(without external capacitor)
■ Lock alarm signal (AL) output
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
PC, PC peripheral component
(Power supply, VGA card, case FAN etc.)
BD player, Projector etc.
Absolute Maximum Ratings
Pd 0.78(Note 1)
-40 to +105
Tstg -55 to +150
AL Signal Output Voltage
AL Signal Output Current
(Note 1) Reduce by 6.24mW/°C over 25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board)
(Note 2) This value is not to exceed Pd.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
○Product structure：Silicon monolithic integrated circuit
© 2012 ROHM Co., Ltd. All rights reserved.
○This product is not designed protection against radioactive rays