FD169Y Datasheet | Feeling Technology

Features Internal pull high pre-driver 50m A maximum sink output current Precise magnetic switching thresholds Available in SOT-23 and SIP-3L packages FD169Y FD169H Halogen Free General Description FD169Y/FD169H is a Hall sensor with latched digital output. It’s suitable for electronic mutation of brushless DC motor applications. The FD169Y/FD169H 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 acpany the sales of the product. Rev1.2 May. 20, 2009’ P.1 / FD169Y,FD169H FEELING TECHNOLOGY Pin Connection FD169Y FD169H VSS 3 Mark Side Top View 1 VDD 2 NO 1 2 3 NO VDD VSS Figure.2 Pin Descriptions Name VDD VSS NO I/O P G O FD169Y FD169H FD169H 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 diagram (Figure.1), FD169Y/FD169H is posed of the following building blocks: Bias Generator The bias generator provides precise, temperature- and process-insensitive bias references for the analog blocks. These references guarantee proper operation of the chip under all conditions specified in this specification. Oscillator Built-in oscillator provides the clock signal. Power on Reset Used to detect the power-up ramp and reset the digital circuits to attain correct operation as soon as the power is ready. Chopper Amplifier To achieve a higher magnetic...