Solid State Hall Effect Sensors High Performance Miniature Ratiometric Linear FEATURES • Small size (.160 x .118 in) • Power consumption of 7 mA at 5 VDC for energy efficiency • Single current sinking or current sourcing output • Linear output for circuit design flexibility • Built-in thin film resistors are laser trimmed for precise sensitivity and temperature compensation • Rail-to-rail operation provides more useable signal for higher accuracy • Temperature range of -40°C to +150°C • Responds to either positive or negative gauss • Quad Hall sensing element for stable output TYPICAL APPLICATIONS • Current sensing • Motor control • Position sensing • Magnetic code reading • Rotary encoder • Ferrous metal detector • Vibration sensing • Liquid level sensing • Weight sensing WARNING PERSONAL INJURY • DO NOT USE these products as safety or emergency stop devices, or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. Sensing and Control SS490 Series The SS490 Series MRL (Miniature Ratiometric Linear) sensors are small, versatile linear Hall effect devices which are operated by the magnetic field from a permanent magnet or an electromagnet. The ratiometric output voltage is set by the supply voltage and varies in proportion to the strength of the magnetic field. The integrated circuitry provides increased temperature stability and sensitivity. Laser trimmed thin film resistors provide high accuracy (null to ± 3%, sensitivity up to ±3%) and temperature compensation. These linear position sensors have an operating temperature range of -40C to +150°C, appropriate for industrial and automotive environments. They respond to either positive or negative gauss, monitoring either or both magnetic poles. The quad Hall sensing element minimizes the effects of mechanical or thermal stress on the output. The positive temperature coefficient of the sensitivity (+0.02%/°C typical) helps compensate for the negative temperature coefficients of low cost magnets, providing a robust design over a wide temperature range. Rail-to-rail operation (over full voltage range) provides a more usable signal for higher accuracy. The recent extension to the product line, the SS490B Series, offers costeffective MRL sensing solutions with slightly wider specifications than the SS490 high-performance products. Like the SS490 Series, the SS490B has a typical sinking or sourcing output of 1.5 mA continuous, uses 7 mA of supply current at 5.0 volts and 25C, and provides predictable performance over the full temperature range. The SS490B Series sensors have wider null and sensitivity tolerances and a wider drift over temperature. The SS490B Series sensors are a new lower cost product line extension. They complement the SS490 Series of small size, high accuracy and high performance miniature linear products. WARNING MISUSE OF DOCUMENTATION • The information presented in this product sheet is for reference only. Do not use this document as product installation information. • Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. Solid State Hall Effect Sensors High Performance Miniature Ratiometric Linear SS490 Series SPECIFICATIONS (Vs = 5.0 v, ta = -40 to +125°C, unless otherwise noted) Catalog Listing Type Supply Voltage (VDC) SS495A Supply Current @ 25°C (mA) Output Type (Sink or Source) Output Current (mA) Typ. Sink or Source Min. Source Min. Sink Min. Sink Operating Temperature Magnetic Range, Gauss Output Voltage Span SS495A1 SS495A2 Typ. 7.0 Max. 8.7 Ratiometric Vs > 4.5 V Vs > 4.5 V Vs > 4.5 V Vs > 5.0 V SS496A SS496A1 SS496B Typ. ± 670 ± 670 1.5 1.0 0.6 1.0 -40 to +150°C (-40 to +302 °F) ± 670 ± 670 ± 840 ± 840 ± 840 Min. ± 600 ± 600 ± 600 ± 600 ± 750 ± 750 ± 750 2.50 ±0.100 3.125 ±0.156 0.2 to (Vs-0.2) 0.4 to (Vs-0.4) 2.50 ±0.150 3.125 ±0.250 2.50 ±0.075 2.50 ±0.100 2.50 ±0.075 2.50 ±0.075 2.50 ±0.150 2.50 ±0.200 Typ. Min. 2.50 ±0.075 3.125 ±0.125 Null (Output @ 0 Gauss, V) Sensitivity (mV/G) Linearity, % of Span) Temperature Error Null Drift SS495B 4.5 to 10.5 2.50 ±0.075 3.125 ±0.094 Typ. Max. (%/ °C) -1.0 -1.5 ± 0.06 ± 0.04 ± 0.07 ± 0.08 ± 0.048 ± 0.03 ± 0.06 ≥ 25°C Max. -0.01, +0.05 -0.02, +0.06 -0.02, +0.06 -0.01, +0.05 - 0.01, +0.05 -0.01, +0.05 - 0.02, +0.06 < 25°C Max. 0.0, +0.06 0.0, +0.06 - 0.01, +0.07 - 0.02, +0.06 0.0, +0.06 0.0, +0.06 - 0.02, +0.06 Sensitivity Drift (%/°C) BLOCK DIAGRAM TRANSFER CHARACTERISTICS at Vs = 5.0 VDC 2 Honeywell • Sensing and Control MAXIMUM SUPLY VOLTAGE vs. TEMPERATURE Solid State Hall Effect Sensors High Performance Miniature Ratiometric Linear MOUNTING DIMENSIONS (for reference only) mm/in TAPE STYLE T2 TAPE STYLE T3 TAPE STYLE P SENSOR PACKAGE ( 1 Centerline of Hall cell) OPTIONAL SURFACE MOUNT Honeywell • Sensing and Control 3 SS490 Series Solid State Hall Effect Sensors High Performance Miniature Ratiometric Linear SS490 Series ABSOLUTE MAXIMUM RATINGS* Supply voltage (VS) Output current (mA) Operating temperature -0.5 to +11 VDC 10 mA -40°C to +150°C (-40°F to +302°F) Storage temperature -55°C to +165°C (-67°F to +329°F) No limit. Circuit cannot be damaged by magnetic Magnetic flux over-drive * Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. Sensing and Control Honeywell Inc. 11 West Spring Street Freeport, Illinois 61032 Printed with Soy Ink on 50% Recycled Paper 005843-1-EN IL50 GLO 999 Printed in USA Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. NOTICE Products ordered in bulk packaging (plastic bags) may not have perfectly straight leads as a result of normal handling and shipping operations. Please order a tape packaging option for applications with critical requirements for straight leads. For application assistance, current specifications, or name of the nearest Authorized Distributor, contact a nearby sales office. 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