BD6966NUX-GE2 ROHM

Datasheet DC Brushless Fan Motor Driver 5V Single-phase Full-wave Fan motor driver BD6966NUX Description This is the summary of application for BD6966NUX that suit for notebook PC cooling fan motor. They employ Bi-CMOS process and realize low ON resistor, and low power consumption and quiet drive. Features Package(s) W(Typ.) x D(Typ.) x H(Max.) Small and thin package (VSON10 thickness:0.6mm) VSON010X3030 3.00mm x 3.00mm x 0.60mm BTL soft switching drive PWM speed control Low duty start up function and enable/disable selectable Quick start function Stand-by function Constant voltage output for hall element Lock protection and auto restart (without external capacitor) Rotating speed pulse signal (FG) output Applications Compact 5V fan such as notebook PC cooling fan VSON010X3030 Absolute maximum ratings Unit Parameter Symbol Limit Supply voltage Vcc 7 V Power dissipation Pd 580* mW Operating temperature Topr -40 to +105 C Storage temperature Tstg -55 to +150 C Output voltage Vomax 7 V Output current Iomax 1000** mA FG signal output voltage Vfg 7 V FG signal output current Ifg 10 mA Hall bias output current Ihb 10 mA Junction temperature Tjmax 150 C 2 * Reduce by 4.64mW/ over Ta=25C(On 74.2mm74.2mm1.6mm glass epoxy board, Copper foil area 6.28mm ) ** This value is not to exceed Pd Operating conditions Unit Parameter Symbol Limit Operating supply voltage range Vcc 1.8 to 5.5 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 TSZ02201-0H1H0B100140-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/12 TSZ2211114001 5.Jul.2012 Rev.001Datasheet BD6966NUX 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 mA PWM=OPEN Fig.1 Circuit current 2 Icc2 15 25 35 uA PWM=GND Fig.2 (Stand-by mode) Hall bias voltage Vhb 0.9 1.0 1.1 V Ihb=-3mA Fig.3 Input offset voltage Vofs 0 - 6 mV PWM input H level Vpwmh 2.5 - Vcc+0.3 V PWM input L level Vpwml -0.3 - 0.8 V - Ipwmh - 0 - A PWM=Vcc - PWM input current Ipwml -33 -25 -17 A PWM=GND - PWM input frequency Fpwm 2 - 50 kHz - SEL=L SEL input L level Vsell -0.3 - 0.8 V - Start duty assist ON Io=300mA Output voltage Vo - 0.4 0.6 V Fig.4 to 7 Upper and Lower total Input-output Gain Gio 43 44.5 46 dB - FG hysteresis voltage Vhys 5 10 15 mV Fig.8 FG low voltage Vfgl - 0.12 0.3 V Ifg=5mA Fig.9,10 FG leak current Ifgl - - 10 A Vfg=7V - Lock detection ON time Ton 0.35 0.50 0.65 s Fig.11 Lock detection OFF time Toff 3.5 5.0 6.5 s Fig.12 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 at stand-by mode www.rohm.com TSZ02201-0H1H0B100140-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/12 TSZ2211115001 5.Jul.2012 Rev.001