Datasheet DC Brushless Fan Motor Driver Standard Single-phase Full wave Fan motor driver BD6964F Description 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. Features Package W(Typ) x D(Typ) x H(Max) SOP8 5.00mm x 6.20mm x 1.71mm BTL soft switching drive PWM speed control Quick start function Lock protection and auto restart (without external capacitor) Lock alarm signal (AL) output Application PC, PC peripheral component (Power supply, VGA card, case FAN etc.) BD player, Projector etc. SOP8 Absolute Maximum Ratings Symbol Limit Unit Parameter Supply Voltage V 15 V CC (Note 1) Power Dissipation Pd 0.78 W Operating Temperature -40 to +105 Topr C Storage Temperature -55 to +150 Tstg C Output Voltage 15 V VOMAX (Note 2) Output Current I 1000 mA OMAX AL Signal Output Voltage V 15 V AL AL Signal Output Current IAL 10 mA Junction Temperature Tjmax 150 C (Note 1) Reduce by 6.24mW/C over 25C. (On 70.0mm70.0mm1.6mm 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 structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays www.rohm.com TSZ02201-0H1H0B100280-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/13 TSZ2211114001 20.May.2014 Rev.002Datasheet BD6964F Recommended Operating Conditions Symbol Limit Unit Parameter Operating supply voltage range V 3.3 to 14 V CC Hall input voltage range VH 0 to VCC/3 V Electrical Characteristics (Unless otherwise specified Ta=25C, Vcc=12V) Limits Parameter Symbol Unit Conditions Characteristics Min Typ Max Circuit Current 1 I 1 1 3 5 PWM=GND Figure 1 CC mA Circuit Current 2 ICC2 2 5 8 PWM=OPEN Figure 2 mA Input Offset Voltage VHOFS - - 6 - mV PWM Input H Level V 2.0 - Vcc+0.3 - PWMH V PWM Input L Level V -0.3 - 0.8 - PWML V IPWMH 11 22 33 A PWM=5V Figure 3 PWM Input Current I -42 -28 -14 A PWM=GND Figure 3 PWML - Input Frequency F 0.02 - 50 kHz PWM IO=300mA VO Figure 4 to 7 Output Voltage - 0.4 0.6 V Upper and Lower total Input-output Gain GIO 45 48 51 dB - I =5mA Figure 8,9 AL Low Voltage V - - 0.4 V AL ALL VAL=15V Figure 10 AL Leak Current IALL - - 20 A Figure 11 Lock Detection ON time tON 0.35 0.50 0.65 s Figure 12 Lock Detection OFF time t 3.5 5.0 6.5 s OFF Truth Table H+ H- PWM OUT1 OUT2 H L H(OPEN) H L L H H(OPEN) L H H L L L L AL normal operation :L(output is ON) L H L L L lock detection :H(output is OFF) www.rohm.com TSZ02201-0H1H0B100280-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/13 TSZ2211115001 20.May.2014 Rev.002