资 源 简 介
The UGS3059KA and UGN/UGS3060KA ac-coupled Hall-effectgear-tooth sensors are monolithic integrated circuits that switch inresponse to changing differenTIal magneTIc fields created by movingferrous targets. These devices are ideal for use in non-zero-speed,gear-tooth-based speed, posiTIon, and TIming applications such as inanti-lock braking systems, transmissions, and crankshafts.Both devices, when coupled with a back-biasing magnet, can beconfigured to turn ON or OFF with the leading or trailing edge of agear-tooth or slot. Changes in fields on the magnet face caused by amoving ferrous mass are sensed by two integrated Hall transducersand are differentially amplified by on-chip electronics. This differentialsensing design provides immunity to radial vibration within the devices’operating air gaps. Steady-state magnet and system offsets areeliminated using an on-chip differential band-pass filter. This filter alsoprovides relative immunity to interference from RF and electromagneticsources. The on-chip temperature compensation and Schmitt triggercircuitry minimizes shifts in effective working air gaps and switch pointsover temperature, allowing operation to low frequencies over a widerange of air gaps and temperatures.Each Hall-effect digital Integrated circuit includes a voltage regulator,two quadratic Hall-effect sensing elements, temperature compensatingcircuitry, a low-level amplifier, band-pass filter, Schmitt trigger,and an open-collector output driver. The on-board regulator permitsoperation with supply voltages of 4.5 to 24 volts. The output stage caneasily switch 20 mA over the full frequency response range of thesensor and is compatible with bipolar and MOS logic circuits.The two devices provide a choice of operating temperature ranges.Both devices are packaged in a 5-pin plastic SIP, with an option oftrimmed, formed pins for horizontal mounting. The UGN/UGS3060KAoffers a Pb (lead) free version, with 100% matte tin leadframe plating.
