FD168Y

FEELING TECHNOLOGY Single Digital Output Hall Effect Latch Features Open-drain pre-driver 50mA maximum sink output current Precise magnetic switching thresholds Available in SOT-23 and SIP-3L packages FD168Y FD168H Halogen Free General Description FD168Y/FD168H is a Hall sensor with latched digital output. It’s suitable for electronic commutation of brushless DC motor applications. The FD168Y/FD168H uses a chopper amplifier for magnetic signal amplification, which can achieve a low offset and thus precise magnetic switching threshold. The output of NO pin is active low or high depends on flux density of the external magnetic source which is larger than threshold of BOP or BRP. Block Diagram Bias Generator Hall Plate Chopper Amplifier Oscillator Digital Control Logics Power On Reset Figure.1 This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Rev1.1 Apr. 23, 2009’ P.1 / FD168Y,FD168H FEELING TECHNOLOGY Pin Connection FD168Y FD168H VSS 3 Mark Side Top View 1 VDD 2 NO 1 2 3 NO VDD VSS FD168Y FD168H Figure.2 Pin Descriptions Name VDD VSS NO I/O P G O FD168Y FD168H Description Positive power supply Ground Driver output 1 3 2 1 2 3 Legend: I=input, O=output, I/O=input/output, P=power supply, G=ground Functional Descriptions Refer to the block diag...