Professional hall effect sensor with low price

HX381 provides a one-chip solution for 3-wire fans with two unipolar coil windings. The chip contains the Hall -effect Sensor, dynamic offset correction, power drivers and a pair of complementary open-drain outputs (DO, DOB). The output drivers pins are fully protected against switching transients.   While the magnetic flux density (B) is larger than operate point (Bop), DO will turn on (low), and meanwhile DOB will turn off (high). Each output is latched until B is lower than release point (Brp), and then DO, DOB transfer each state.   For DC fan application, sometimes need to test power reverse connection condition. Internal diode only protects chip-side but not for coil-side. If necessary, add one external diode to block the reverse current from coil-side   HX381 is rated for operation between the ambient temperatures –40°C and 125°C for the K Temperature range. The package is available provided magnetically optimized solutions for most applications. Package VK is a four-lead ultra mini SIP for through-hole mounting. VF is a standard Sot 89, 5 pin packages at the E spec (–40°C and 85°C). also the Thermal shut-down function is integrated as well for better protection.   The package type is in a Halogen Free version has been verified by third party Lab.   Features and Benefits One Chip Hall sensor solution High sensitivity Hall sensor Locked rotor shutdown and auto-restart Power-efficient CMOS and power MOSFETS. Built-in Zener diodes protect outputs 2.5V to 20V operating voltage Peak currents up to 1200mA Thermal shut-down   Applications Dual-coil Brush-less DC Motor Dual-coil Brush-less DC Fan Revolution Counting Speed Measurement   $1$    
Payment Terms: 1)  We accept T/T, PayPal, WesternUnion, MoneyGram, Escrow, Alipay or Cash. 2) Pls send us payment receipt for us to follow payment status to prepare deliveryintime.   Shipping terms: 1)  For general goods, we will pack and send your goods within 4-7 working days after your payment is received.  2)  We will inform you the exact develop and delivery time if there is no stock and takes time to develop. 3)  We usually ship by DHL, UPS, TNT, FedEx, Aramex or EMS. If you prefer which express company, pls inform us in advance and we will ship as your requirement.Meanwhile, we will send you tracking No. after sending goods. 4)  Pls understand we are not responsible for any accidents, delays or Other issues that are caused by express companies.   Quality warranty: 1)  Our products warranty time is 30-90 days. 2)  During the guarantee period, if your purchased items can't work well, pls inform us in time an d we will provide you best solution after our negotiation. 3)  Contact us before leaving any negative or bad feedback, and we promise we will make efforts to solve any problems which you encountered during your use.

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