Magnetic Sensors Line Guide You know us as a leader, whether youve known us as MICRO circuits, responding to the presence or the interruption of a SWITCH or Honeywell Sensing and Control (S&C). In 1968, magnetic field by producing a proportional output. Gear-tooth we revolutionized the industry with the first solid-state keyboard and other packaged Hall-effect speed and direction sensors combining Hall-effect sensing and associated electronics in sense movements of a ferrous metal target. Digital and analog a single circuit. Today, the Honeywell S&C family of magnetic sensor-only devices are operated by a permanent magnet position sensors includes digital and analog Hall-effect position, or electromagnet, while actuation mode depends on the type magnetoresistive digital, Hall-effect vane, gear-tooth, and Hall- of magnets used. A vane passing through a gap or a magnet effect basic switches and magnets. These high-speed, extended mounted on a plastic plunger operates integral magnet position life sensors are often directly compatible with other electronic sensors. FEATURES LOW POWER HALL-EFFECT temperature range, of -40 to 85 C design. Thermally balanced integrated SENSOR ICS - DIGITAL -40 to 185 F . SOT-23 subminiature circuit over full temperature range. Built-in SL353 Series. package requires less PCB space, allowing regulator provides stable operation over Features: Energy efficient Push-pull for use in smaller assemblies. North pole supply voltage range. Open-collector output Non-chopper stabilized design or South pole operation does not require sinking output voltage easily interfaces with Omnipolar magnetics Thermally the magnet polarity to be identified, making wide variety of electronic circuits. Internal balanced integrated circuit Subminiature installation easier and potentially reducing circuitry prevents sensor damage in case package size Simple activation from a system costs. Supplied on tape and reel supply voltage polarity is accidentally North pole or a South pole Tape and reel which allows for a compact design with reversed. Potential applications include packaging automated component placement, helping speed and RPM sensing, brushless dc to reduce manufacturing costs. Potential motor commutation, motor and fan control, Benefits: Supply voltage as low as 2.2 applications include motion control, lid magnetic encoding, disc speed, tape Vdc, combined with very low average closure detection, presence-absence, rotation, and flow-rate sensing. current of 1.8 A typ., reduces power metering, and displacement sensing on consumption, provides extended battery battery-operated, mobile equipment such SS311PT, SS411P. life, and promotes energy efficiency. as computer notebooks, scanners, hand- Features: Bipolar magnetics Enhanced Push-pull output does not require external held industrial computers, instrumentation sensitivity Built-in pull-up resistor Low pull-up resistor, simplifying interface and appliances. voltage: 2.7 Vdc to 7 Vdc Subminiature with common electrical circuits and package size (SS311PT) Through-hole potentially reducing PC board space and HALL-EFFECT SENSOR ICS - and surface-mount (SOT-23 and SOT-89B) costs to the customer. Does not utilize DIGITAL packages Cost effective chopper stabilization, eliminating the SS30AT, SS40A, SS50AT. noise generated by products using this Benefits: Enhanced sensitivity often allows Features: Bipolar magnetics Sinking technique, meaning that customers do not for use of smaller, less expensive magnets. output High output current capability need filters to compensate for the noise. Built-in pull-up resistor easily interfaces with High speed capability Reverse polarity Omnipolar capability with high and low duty common electronic circuits without adding protection Small through-hole and cycle options allows for use in a variety external components, helping to reduce surface mount (SOT-23 and SOT-89B) of potential applications with low power total system cost. 2.7 Vdc to 7 Vdc supply packages Tape and reel available requirements and/or battery operation. voltage range allows use in low voltage Thermally balanced integrated circuit Benefits: Integrated circuitry provides applications, promoting energy efficiency. provides for stable operation over a wide enhanced temperature stability in a robust Sensing and Productivitcontinued on page 9y SolutionsMagnetic Sensors Line Guide Precision. Repeatability. Low power Hall- Ruggedness. effect sensor ICs - Each Honeywell S&PS SL353 Series digital magnetic sensor IC is engineered to provide top Description micropower omnipolar digital Hall-effect sensor IC performance: Magnetic actuation type omnipolar Hall-effect sensor ICs are Package style (packaging) SOT-23 (pocket tape and reel) constructed from a thin sheet of Supply voltage range 2.2 Vdc to 5.5 Vdc conductive material with output SL353LT: 1.8 A typ. at 2.8 Vdc Supply current connections perpendicular to SL353HT: 0.33 mA typ. at 2.8 Vdc the direction of current flow. Output type digital Magnetoresistive sensor ICs Operating temperature range -40 C to 85 C -40 F to 185 F have a built-in magnetoresistive bridge integrated on silicon, encapsulated in a plastic package. The sensitive integrated circuit responds to low (25 G max.) fields at distances up to 1 inch. Hall-effect vane sensor ICs Hall-effect sensor consist of a magnet and a Hall- ICs - digital SS30AT, SS40A, SS50AT SS340RT, SS440R Series effect sensor inside a rugged plastic housing. Different low-cost bipolar digital Hall-effect package styles provide Description unipolar Hall-effect digital sensor IC sensor IC mounting flexibility. SS340RT: North pole Magnetic actuation type bipolar Gear tooth sensors use a SS440R: South pole magnetically biased Hall- SS30AT: SOT-23 (pocket tape and reel) effect IC to sense movement SS40A: at TO-92-style, standard straightfl SS340RT: SOT-23 (pocket tape and reel) Package style of ferrous metal targets. The leads (bulk) SS440R: flat TO-92-style, standard straight (packaging specially designed IC is sealed SS50AT: SOT-89B (pocket tape and reel) leads (bulk) in a durable plastic probe-type 3 Vdc to 24 Vdc, except SS340RT package. Supply voltage range 4.5 Vdc to 24 Vdc >125 C 257 F : 3 Vdc to 12 Vdc Additional built-in benefits: Supply current 10 mA max. 8 mA true solid state, extended Output type digital sinking digital sinking life (30 billion operations in a SS440R (3 Vdc to 24 Vdc): module test program), high -40 C to 150 C -40 F to 302 F SS40A: -40 C to 125 C speed operation (over 100 -40 F to 257 F SS340RT (3 Vdc to 24 Vdc): Operating temp. range kHz), stationary input (zero SS30AT, SS50AT: -40 C to 125 C -40 C to 125 C -40 F to 257 F speed), no moving parts, logic -40 F to 257 F SS340RT (3 Vdc to 12 Vdc): -40C to 150 C -40C to 302 F compatible output, and broad temperature range (-40 C to 150 C -40 F to 302 F ). 2 Sensing and Productivity Solutions