PT3921

12V All-in-One Single Coil Smart DC Fan IC; ·2.7V~17V supply voltage\n·Single phase full wave\n·Soft switching output\n·Built-in Hall sensor\n·Motor locked protection & automatic restart\n·ESD protection: 8KV\n·Built-in hysteresis comparator\n·Built-in Zener diode\n·High sensitivity & low thermal drift magnetic sensing\n·Low power consumption & high driving efficiency\n·Support pre-driver application\n;

The PT3921 is designed for magnetic actuating using a bipolar 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-effect IC is optimal for DC brushless fan application. The supply voltage range is from 2.7V to 17V and the output current is 400mA.\n

PT3921

2.7V~17V operation

PT3921

Single Coil Fan Driver

PU3921

SHUNTRESISTORAUTOMOTIVEGRADE

SCOPE Thisspecificationdescribesshunt resistorPUseriesmadebywelding technology. APPLICATIONS ?Power ?Telecombasestation ?Automotive(Headlight/ Windowcontrol/Enginecontrol unit/Steeringcontrol…) ?Alternativeenergy FEATURES ?AEC-Q200qualified ?Totalleadfree

PU3921BW

PUseriesflattypeisolationtransformer

S3921

NMOSlinearimagesensorVoltageoutputtypewithcurrent-integrationreadoutcircuitandimpedanceconversioncircuit