BD6965NUX-TR ROHM

Datasheet DC Brushless Fan Motor Driver 5V Single-phase Full wave Fan motor driver BD6965NUX Description This is the summary of application for BD6965NUX that suit for notebook PC cooling fan motor. They employ Bi-CDMOS process and realize low ON resistance, low power consumption and quiet drive. Features Package(s) W(Typ.) x D(Typ.) x H(Max.) Small and thin package (VSON8 thickness:0.6mm) VSON008X2030 2.00mm x 3.00mm x 0.60mm BTL soft switching drive PWM speed control Low duty start up function Quick start function Stand-by function Lock protection and auto restart (without external capacitor) Rotating speed pulse signal (FG) output Applications Compact 5V fan such as notebook PC cooling fan VSON008X2030 Absolute maximum ratings Parameter Symbol Ratings Unit Supply voltage Vcc 7 V Power dissipation Pd 515* mW Operating temperature Topr -40 to +105 Storage temperature Tstg -55 to +150 Output voltage Vomax 7 V Output current Iomax 800** mA FG signal output voltage Vfg 7 V FG signal output current Ifg 10 mA Junction temperature Tjmax 150 * Reduce by 4.12mW/ over 25. (70.0mm70.0mm1.6mm glass epoxy board) ** This value is not to exceed Pd. Operating conditions Parameter Symbol Ratings Unit Operating supply voltage range Vcc 2.0 to 5.5 V Hall input voltage range Vh 0 to Vcc-1.1 V Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays .w ww.rohm.com TSZ02201-0H1H0B100130-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/12 TSZ2211114001 6.Jul.2012 Rev.001Datasheet BD6965NUX Electrical characteristics (Unless otherwise specified Ta=25,Vcc=5V) Limits Parameter Symbol Unit Conditions Characteristics Min. Typ. Max. Circuit current 1 Icc1 1 3 6 PWM=OPEN Fig.1 mA Circuit current 2 Icc2 80 115 160 PWM=GND Fig.2 A (Stand-by mode) Hall input offset Vhofs 0 - 6 mV FG hysteresis voltage Vhys 5 10 15 Fig.3 mV PWM input H level Vpwmh 2.5 - Vcc+0.3 V PWM input L level Vpwml -0.3 - 0.8 V Ipwmh - 0 5 PWM=Vcc A PWM input current Ipwml -33 -25 -17 PWM=GND A Input frequency Fpwm 2 - 50 kHz Io=250mA Fig.4,5 Output voltage Vo - 0.4 0.6 V Upper and Lower total Fig.6 Input-output Gain Gio 42 44.6 46 dB Ifg=5mA Fig.7 FG low voltage Vfgl - - 0.4 V Vfg=7V FG leak current Ifgl 0 - 10 A Fig.8 Lock detection ON time Ton 0.35 0.50 0.65 s Fig.9 Lock detection OFF time Toff 3.5 5.0 6.5 s Truth table H+ H- PWM OUT1 OUT2 FG H L H(OPEN) H L H(Output TrOFF) L H H(OPEN) L H L(Output TrON) H L L L L H(Output TrOFF) L H L L L L(Output TrON) * FG=H in stand-by mode www.rohm.com TSZ02201-0H1H0B100130-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/12 TSZ2211115001 6.Jul.2012 Rev.001