PT3911 PROLIFIC | Alldatasheet
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seam snc nase Ml 2.7V~28V supply voltage yo125mm * BH Soft switching output || Marking side @ Built-in Hall sensor WTI @ Motor locked protection | | | | peer tenure & automatic restart UU a @ ESD protection: 8KV eo ee 4 o,Seaasy- @ Built-in hysteresis Pea fp fn Tn | comparator ee ce B Built-in protection Zener rs eT ere . oes ss diode 1. VDD/DC power supply 7 2. O4/First output pin High sensitivity & low 3.02/S id ee ee eeNDIDG ground Kee ee thermal drift magnetic sensing ; ; ; ; | . @ Low power consumption The PT3911 is designed for magnetic actuating using a bipolar & high driving efficiency magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output . . driver provides a linear drive to eliminate switching noise. This Hall Ap p lications effect IC is optimal for DC brushless fan application. The supply voltage range is from 2.7V to 28V and the output current is 400mA. i 5V/12V/24V double coils DC brushless fan motor Hi Revolution counting Specifications Oe@aciiina én tiarla reltt Absolute Maximum Ratings (Ta=25°C) Ooling fan for houseno electronics equipments Operating temperature Ta -40~+100 | [Wax output current | temas | oseve wo ma] SOnsoles: fremsmannne fom | [me f| femme | = [f= [| “4: Reduced by 4.5mW for each increase in Ta of 1°C over 25°C When mounted on 50mm x 50mm x 1.6mm glass epoxy board *2: Should not exceed Pd *3: Need a serial resistor Prolific Technology Inc. http://www. prolific.com.tw