Datasheet DC Brushless Fan Motor Driver Standard Single-phase Full wave Fan Motor Driver BA6423AF General Description This is the summary of application for BA6423AF. BA6423AF incorporates lock protection and automatic restart circuit. Features Package(s) W(Typ.) x D(Typ.) x H(Max.) Lock protection and auto restart SOP8 5.00mm x 6.20mm x 1.71mm Lock alarm signal (AL) output Applications General consumer electronics, BD player, DVR, STB Office equipment, Copier, FAX Laser Printer etc. SOP8 Absolute maximum ratings Parameter Symbol Ratings Unit Supply voltage Vcc 30 V Power dissipation Pd 780* mW Operation temperature Topr -40 to +100 Storage temperature Tstg -55 to +150 Output current Iomax 1.0** A Output voltage Vout 30 V AL signal output voltage Val 30 V Junction temperature Tjmax 150 * Reduce by 6.24mW/ over 25. (On 70.0mm70.0mm1.6mm glass epoxy board) ** This value is not to exceed Pd. Operating Conditions Parameter Symbol Ratings Unit V Operating supply voltage range Vcc 6.0 to 28.0 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 TSZ02201-0H1H0B100230-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/10 TSZ2211114001 19.Jul.2012 Rev.001Datasheet BA6423AF Electrical characteristics (Unless otherwise specified Ta=25,Vcc=12V) Limits Parameter Symbol Unit Conditions Characteristics Min. Typ. Max. Fig.1 Circuit current At output OFF Icc 2.7 5.4 8.1 mA Charge current of capacitor for lock Vld=1.8V - Ildc 1.55 3.10 4.65 A detection Discharge current of - capacitor for lock Ildd 0.33 0.66 0.99 A Vld=1.8V detection Charge-discharge current - ratio of capacitor for lock rcd=Ildc/Ildd rcd 3.0 4.7 6.4 - detection Clamp voltage of capacitor for lock - Vldcl 2.00 2.48 3.00 V detection Comparison voltage of capacitor for lock - Vldcp 0.70 0.99 1.30 V detection Output L voltage Io=200mA Fig.2 Vol - 0.8 1.2 V Io=-200mA Fig.3 Output H voltage Voh - 0.9 1.4 V Voltage between output and Vcc 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 - Vofs -20 0 20 mV voltage Reference Data 2 0 7 -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 Output Cu rrent, Io A Output C urrent, Io A Supply voltage, Vcc V Fig.1 Circuit current Fig.2 Output L voltage Fig.3 Output H voltage 0.2 10.0 10.0 0.15 28V 0.1 1.0 1.0 12V 0.05 6V 0.1 0 0.1 0 2 4 6 8 10 0.1 1.0 10.0 100.0 0.1 1.0 10.0 100.0 AL current, Ial mA Collector-emitter voltage, Vce V Collector-emitter voltage, Vce V Fig.4 AL output L voltage Fig.5 Output Tr ASOupper Fig.6 Output Tr ASOlower (TON=100msec) (TON=100msec) www.rohm.com TSZ02201-0H1H0B100230-1-2 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 Output H voltage, Voh V Collector-emitter current, Ice A