Datasheet DC Brushless Fan Motor Driver Standard Single-phase Full wave Fan Motor Driver BA6424AFS General Description This is the summary of application for BA6424AFS. BA6424AFS incorporates lock protection and automatic restart circuit. Features Package(s) W(Typ.) x D(Typ.) x H(Max.) Lock protection and auto restart SSOP-A16 6.60mm x 6.20mm x 1.71m Rotating speed pulse signal (FG) output Lock alarm signal (AL) output Applications General consumer electronics, BD player, DVR, STB Office equipment, Copier, FAX Laser Printer etc. SSOP-A16 Absolute maximum ratings Parameter Symbol Ratings Unit Supply voltage Vcc 30 V Power dissipation Pd 812.5* mW Operation temperature Topr -40 to +100 Storage temperature Tstg -55 to +150 Output current Iomax 1.0** A Output voltage Vout 30 V FG signal output voltage Vfg 30 V AL signal output voltage Val 30 V Junction temperature Tjmax 150 * Reduce by 6.5mW/ over 25. (On 70.0mm70.0mm1.6mm glass epoxy board) ** This value is not to exceed Pd. Operating Conditions Parameter Symbol Ratings Unit Vcc 6.0 to 28.0 V Operating supply voltage range V Hall input voltage range Vh 2.5 to Vcc Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays .w ww.rohm.com TSZ02201-0H1H0B100240-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/10 TSZ2211114001 19.Jul.2012 Rev.001Datasheet BA6424AFS Electrical characteristics (Unless otherwise specified Ta=25,Vcc=12V) Limits Parameter Symbol Unit Conditions Characteristics Min. Typ. Max. Circuit current At output OFF Fig.1 Icc 2.7 5.4 8.1 mA Charge current of capacitor for - Vld=1.8V Ildc 1.55 3.10 4.65 A lock detection Discharge current of capacitor Vld=1.8V - Ildd 0.33 0.66 0.99 A for lock detection Charge-discharge current ratio of rcd=Ildc/Ildd - rcd 3.0 4.7 6.4 - capacitor for lock detection Clamp voltage of capacitor for - Vldcl 2.00 2.48 3.00 V lock detection Charge current of capacitor for - Vldcp 0.70 0.99 1.30 V lock detection Output L voltage Io=200mA Fig.2 Vol - 0.8 1.2 V Io=-200mA Fig.3 Output H voltage Voltage between Voh - 0.9 1.4 V output and Vcc FG output L voltage Ifg=10mA Fig.4 Vfgl - 0.1 0.3 V FG output leak current - Ifgl - 0 10 A Vfg=30V Fig.4 AL output L voltage Vall - 0.1 0.3 V Ial=10mA AL output leak current - Iall - 0 10 A Val=30V Hall input - output offset voltage - Vofs -20 0 20 mV Hall input - FG offset voltage - Vfgofs -45 -25 -5 mV Reference Data 2 7 0 -25 6 25 1.5 -0.5 5 6V 28V 4 100 12V 1 -1 12V 28V 3 6V 2 0.5 -1.5 Operating Voltage Range 1 0 -2 0 0 0.2 0.4 0.6 0.8 1 0 0.2 0.4 0.6 0.8 1 0 6 12 18 24 30 Supply vo ltage, Vcc V Output Cu rrent, Io A Output C urrent, Io A Fig.1 Circuit current Fig.2 Output L voltage Fig.3 Output H voltage 10.0 10.0 0.2 0.15 28V 1.0 1.0 0.1 12V 0.05 6V 0.1 0 0.1 0.1 1.0 10.0 100.0 0.1 1.0 10.0 100.0 0 2 4 6 8 10 Collector-emitter voltage, Vce V Collector-emitter voltage, Vce V AL current, Ial mA Fig.4 FG/AL output L voltage Fig.5 Output Tr ASOupper Fig.6 Output Tr ASOlower (TON=100msec) (TON=100msec) www.rohm.com TSZ02201-0H1H0B100240-1-2 2012 ROHM Co., Ltd. All rights reserved. 2/10 TSZ2211115001 19.Jul.2012 Rev.001 AL low voltage, Vall V Circuit current, Icc mA Collector-emitter current, Ice A Output L voltage, Vol V Collector-emitter current, Ice A Output H voltage, Voh V