PT3956 PROLIFIC | Alldatasheet
Document overview
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Technical content
Single Coil Fan Driver with ()Proli Ic \\ TECHNOLOGY FOR TOMORROW Key Features Tr ee H 1.8V~8.5V supply voltage ok | _ eeocoe Single phase full wave ‘| I Soft switching output yl @ Built-in Hall sensor o ® Motor locked protection ==): =F & automatic restart ST ESD protection: 8KV FG output ee EC . application 4.FG output ee ee
2 GNDIDG ground ee @ Built-in hysteresis
3.01/First output pin. = [1 PT TP : 4. O2/Second output pin comparator SYPBIDE power supply FF lH Built-in Zener diode B High sensitivity & low The PT3956A is designed for magnetic actuating using a bipolar thermal drift magnetic magnetic field. The built-in dynamic offset cancellation of pre-amplifier sensing stage achieves optimal symmetrical magnetic sensing. The output @ Low power consumption driver provides a linear drive to eliminate switching noise. This & high driving efficiency Hall-effect IC is optimal for notebook cooling fan application. The supply voltage range is from 1.8V to 8.5V and the output current is 400mA.
Applications
Absolute Maximum Ratings (Ta=25°C) ll Single coil 5V brushless DC fan [eerenerewamenen [ee fee device. a a Percent f| ee a Se Ed *T; Reduced by 4.5mW for each increase in Ta of 1°C over 25°C When mounted on Somm x 50mm x 1.6mm glass epoxy board *2: Should not exceed Pd Prolific Technology Inc. http://www. prolific.com.tw