Datasheet DC Brushless Fan Motor Driver 5V Single-phase Full wave Fan motor driver BH6766FVM Description This is the summary of application for BH6766FVM that suit for notebook PC cooling fan motor. They employ Bi-CMOS process and realize low ON resistance, low power consumption and quiet drive. Features Package(s) W(Typ.) x D(Typ.) x H(Max.) MSOP8 2.90mm x 4.00mm x 0.90mm Compact package (MSOP8) BTL soft switching drive Constant voltage output for hall element Rotating speed pulse signal (FG) output Application Compact 5V fan such as notebook PC cooling fan MSOP8 Absolute maximum ratings Symbol Limit Unit Parameter Supply voltage Vcc 7 V Power dissipation Pd 585* mW Operating temperature Topr -40 to +105 Storage temperature Tstg -55 to +150 Output current Iomax 630** mA FG signal output voltage Vfg 7 V FG signal output current Ifg 5 mA Junction temperature Tjmax 150 * Reduce by 4.68mW/ over Ta=25C(70.0mm70.0mm1.6mm glass epoxy board) ** This value is not to exceed Pd Operating conditions Parameter Symbol Limit Unit Operating supply voltage range Vcc 2.0 to 6.0 V Hall input voltage range Vh 0.4 to Vcc-1.1 V Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays w ww.rohm.com TSZ02201-0H1H0B100100-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/9 TSZ2211114001 11.Jul.2012 Rev.001Datasheet BH6766FVM Electrical characteristics(Unless otherwise specified Ta=25,Vcc=5V) Limits Parameter Symbol Unit Conditions Characteristics Min. Typ. Max. Circuit current Icc - 5 8 mA Fig.1 Input offset voltage Vhofs - - 6 mV - Io250mA Output voltage Vo - 0.32 0.49 V Fig.2,3 Upper and Lower total Input-output Gain Gio 45 48 51 dB - FG low voltage Vfgl - - 0.3 V Ifg=3mA Fig.4 FG leak current Ifgl - - 5 A Vfg=7V - Input hysteresis voltage Vhys 5 10 15 mV Fig.5 Hall bias voltage Vhb 1.1 1.3 1.5 V Ihb=-5mA Fig.6 Reference data 6 1.0 0.0 5 0.8 -0.2 4 -40 105 0.6 -0.4 3 25 105 25 0.4 -0.6 -40 25 2 -40 105 0.2 -0.8 1 Operating Voltage Range 0.0 0 -1.0 0 2 4 6 8 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 Supply voltage,Vcc V Output current, Io A Output current, Io A Fig.1 Circuit current Fig.2 Output L voltage Fig.3 Output H voltage 0.5 20 1.6 105 105 15 25 0.4 25 10 1.2 -40 -40 5 0.3 Operating Voltage Range 0 0.8 0.2 -5 -40 2V 0.4 -10 25 0.1 5V -15 105 6V 0.0 0.0 -20 0 2 4 6 8 10 0 1 2 3 4 5 0 2 4 6 8 FG current, Ifg mA Supply voltage, Vcc V Hall bias current, Ihb mA Fig.4 FG low voltage Fig.5 Input hysteresis voltage Fig.6 Hall bias voltage www.rohm.com TSZ02201-0H1H0B100100-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/9 TSZ2211115001 11.Jul.2012 Rev.001 FG low voltage, Vfgl V FG low voltage, Vfgl V Circuit current, Icc mA Output L voltage V Input hysteresis voltage mV Input hysteresis voltage, Vhys mV Output H voltage V Output H voltage V Hall bias voltage, Vhb V Hall bias voltage V