AFL020-00

AFL-Series Digital Magnetic Sensors Low Voltage, Low Power Digital Magnetic Sensors Functional Diagrams Features • Digital outputs • Low power • Precision magnetic operate points as low as 4 Oe (0.4 mT) • Versions for 1 V through 5 V nominal supplies • Omnipolar response • Temperature and voltage stability • Frequency response to 100 kHz • TDFN6 and MSOP8 packages VDD Out GMR Sensor Element Comparator Applications • Motion, speed, and position control • Proximity sensing • Portable instruments • Utility meters • Noncontact overcurrent protection • Battery-powered applications GND Sinking Output Versions (AFLx0x-xx/AFLx1x-xx) VDD GMR Sensor Element Description AFL-Series Sensors are GMR digital switches designed to run at low voltages and currents. Versions are available that can operate from single-cell batteries. The outputs switch at specified magnetic fields, and return when the fields are removed. Comparator The sensors are three-terminal devices, available with either current-sinking or sourcing outputs, normally off or normally on configurations, and several supply voltage options. Out GND Sourcing Output Versions (AFLx2x-xx/AFLx3x-xx) Idealized Transfer Functions On Off Off Field Normally Off (AFLx0x-xx/AFLx3x-xx) Normally On (AFLx1x-xx/AFLx2x-xx) 1 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Absolute Maximum Ratings Parameter Operating temperature Storage temperature ESD (Human Body Model) Applied magnetic field Symbol Min. −20 −65 HMAX Max. 85 150 2000 Unlimited Units °C °C Volts Oe Operating Specifications Parameter Supply voltage Operating temperature Magnetic operate point AFLxx0-xx AFLxx1-xx AFLxx2-xx AFLxx5-xx AFLxx6-xx Operate/release differential AFLxx0-xx AFLxx1-xx AFLxx2-xx AFLxx5-xx AFLxx6-xx Supply current Over specified Vcc and temperature range otherwise stated. Symbol Min. Typ. Max. Vcc See table of available parts. TMIN; TMAX −20 85 7 15 21 4 3 HOP 1 3 3 4 1 HOP−HREL AFL00x-xx AFL02x-xx AFL03x-xx AFL10x-xx AFL20x-xx AFL30x-xx Output current Sinking (AFLx0x-xx/AFLx1x-xx) Output voltage Sourcing (AFLx2x-xx/AFLx3x-xx) Output leakage current Frequency response Junction–Ambient Thermal Resistance (TDFN6 or MSOP8 package) ICC IO-ON VOL VOH IO-OFF fMAX 10 20 28 7 4 Oe* 6 10 10 10 3 Oe* 35 55 30 15 25 30 30 100 50 35 35 35 40 75 55 45 45 50 Test Condition °C 13 25 34 10 6 20 Max. ICC specified at Vcc = 1.3V Over specified Vcc µA µA 0.2 VCC−0.15 0.1 θJA Units V 100 µA kHz 320 °C/W Output Off Soldered to doublesided board; free air *1 Oe = 0.1 mT in air. 2 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Operation Plane and Direction of Magnetic Sensitivity As the field varies in intensity, the digital output will turn on and off. Unlike Hall effect or other sensors, the direction of sensitivity is in the plane of the package. Standard AFL-Series sensors are sensitive “cross-axis,” that is, across the pins from pin 1 to pin 6 or 8.The diagrams below show two magnet orientations that will activate the sensor in the direction of sensitivity: Figure 1. Plane and direction of magnetic sensitivity Omnipolar GMR sensors are generally “omnipolar,” meaning the outputs turn ON when a magnetic field of either magnetic polarity is applied. Normally OFF and Normally ON Versions For normally OFF versions, the output turns ON when the field exceeds the magnetic operate point, and OFF when the field drops below the operate point minus the release differential. Normally ON versions turn OFF when the field exceeds the operate point and ON when it drops below the operate point minus the differential. External Pull-Up Resistor AFL-Series outputs are open collector, with PNP output transistors for sourcing versions and NPN transistors for sinking versions. Outputs should have external pull-up or pull-down resistors. For microcontroller interfaces, the microcontroller’s input pull-up resistors can be activated. Typical Operation A typical proximity sensor using an AFL006 sensor and magnet is shown below. TheAFL006is the most sensitive magnetic switch, with a 4 Oe typical operate point, and actuates with a rare-earth magnet at more than two inches (50 mm) from the sensor: AG035-06 circuit board AFL006 sensor Magnet Figure 2. The AFL006sensor activates at approximately 58 mm. Smaller or weaker magnets can be used for closer operating distances. Because AFL-Series sensors are omnipolar, the sensor operates with either a north or south magnet pole. Our free, Web-based application that calculates fields and operating distances for various sensor models and magnet types: www.nve.com/spec/calculators.php 3 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Part Numbering The following example shows the AFL-Series part-numbering system: AFL 000 - 00E Base Part Supply Voltage AFL = Low-voltage, 0 = 0.9 V – 2 V low power 1 = 1.8 V – 2.5 V digital switches 2 = 2.7 V – 3.6 V 3 = 4.5 V – 5.5 V Output 0 = Normally Off; Sink 1 = Normally On; Sink 2 = Normally On; Source 3 = Normally Off; Source Magnetic Operate Point 0 = 10 Oe 1 = 20 Oe 2 = 28 Oe 3 = 40 Oe 5 = 7 Oe 6 = 4 Oe Package Type 00 = MSOP8 01 = IC only 10 = TDFN6 E = RoHS Pinouts MSOP8TDFN6TDFN6 (-00 suffix)(AFLxx6-10)(Other -10 suffix) Vcc OUT N/C GND N/C N/C N/C N/C N/C Vcc Vcc OUT N/C N/C N/C GND GND Out N/C N/C Direction of Sensitivity Pin MSOP8 (all part types) 1 7 8 2, 3, 4, 5, 6 AFLxx6 6 3 4 1, 2, 5 TDFN6 AFLxx0 /AFLxx1/ AFLxx2/AFLxx5 1 5 6 2, 3, 4 Symbol VCC GND OUT N/C Description Power supply Ground Output (open collector) No internal connection 4 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Product Range Charts AFLxx6 3 V Lithium Cell AFL3xx AFLxx5 Sensitivity 1.5 V Alkaline Cell AFL2xx AFL1xx AFLxx0 AFLxx1 AFLxx2 AFL0xx 0 0.9 1.8 2 2.5 2.7 3.6 4.5 0 5.5 Operating Voltage Range (V) 4 7 10 20 28 Magnetic Operate Point (Oe) Available Parts Available Part AFL000-00E AFL000-10E AFL001-10E AFL002-10E AFL005-10E AFL006-10E AFL020-00E AFL030-00E AFL100-00E AFL100-10E AFL200-00E AFL300-00E Supply Voltage 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 0.9 V – 2 V 1.8 V – 2.5 V 1.8 V – 2.5 V 2.7 V – 3.6 V 4.5 V – 5.5 V Output Type Normally Off Normally Off Normally Off Normally Off Normally Off Normally Off Normally On Normally Off Normally Off Normally Off Normally Off Normally Off Output Source/Sink Sink Sink Sink Sink Sink Sink Source Source Sink Sink Sink Sink Nominal Operate Point* 10Oe 10Oe 20Oe 28 Oe 7 Oe 4 Oe 10 Oe 10 Oe 10 Oe 10 Oe 10 Oe 10 Oe Package MSOP8 TDFN6 TDFN6 TDFN6 TDFN6 TDFN6 MSOP8 MSOP8 MSOP8 TDFN6 MSOP8 MSOP8 Package Marking PBBe QBBe QBXe QBLe QBKe QCHe PBCe PBDe PBFe QBFe PBGe PBHe 5 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Bare Circuit Boards for Sensors NVE offers several bare circuit boards specially designed for easy connections to surface-mount sensors. Popular PCBs are shown below (images are two times actual size): 1 8 2 7 6 3 4 5 AG915-06: 0.25" (6 mm) octagonal MSOP8 AG918-06 (standard) / AG919-06 (cross-axis): 2" x 0.25" (50mm x 6 mm) MSOP8 AG035-06: 1.57" x 0.25" (40mm x 6 mm) TDFN6 6 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Package Drawings MSOP8 (-00 suffix) 0.114 (2.90) 0.122 (3.10) 0.016 (0.40) 0.027 (0.70) 0.114 (2.90) 0.122 (3.10) 0.189 (4.80) 0.197 (5.00) 0.032 (0.80) 0.043 (1.10) 0.024 (0.60) 0.028 (0.70) 0.005 (0.13) 0.009 (0.23) 0.010 (0.25) 0.016 (0.40) 0.002 (0.05) 0.006 (0.15) NOTE: Pin spacing is a BASIC dimension; tolerances do not accumulate TDFN6 (-10 suffix) 2.00 ± 0.05 0.80 MAX. 6 4 6 2.50±0.10 1.30±0.05 4 C0.10 PIN 1 ID 1 1 3 3 2.50 ± 0.10 0.0-0.05 0.30±0.05 (6X) 0.30±0.05 0.65 TYP. (4X) 1.30 REF (2X) 0.20 REF RoHS COMPLIANT Soldering profile per JEDEC J-STD-020C, MSL 1. 7 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Revision History SB-00-015-D October 2017 Change • Added “typical operation” description and illustration (p. 3). • Added product range charts (p. 5). • Added page with bare circuit boards (p. 6). SB-00-015-C June 2017 Change • Added AFL006 high-sensitivity version. • Increase maximum supply voltage for AFL0xx to 2 V. SB-00-015-B March 2017 Change • Cosmetic datasheet changes. SB-00-015-A June 2007 Change • Initial release. 8 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors Datasheet Limitations The information and data provided in datasheets shall define the specification of the product as agreed between NVE and its customer, unless NVE and customer have explicitly agreed otherwise in writing. All specifications are based on NVE test protocols. In no event however, shall an agreement be valid in which the NVE product is deemed to offer functions and qualities beyond those described in the datasheet. Limited Warranty and Liability Information in this document is believed to be accurate and reliable. However, NVE does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NVE be liable for any indirect, incidental, punitive, special or consequential damages (including, without limitation, lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Right to Make Changes NVE reserves the right to make changes to information published in this document including, without limitation, specifications and product descriptions at any time and without notice. This document supersedes and replaces all information supplied prior to its publication. Use in Life-Critical or Safety-Critical Applications Unless NVE and a customer explicitly agree otherwise in writing, NVE products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical devices or equipment. NVE accepts no liability for inclusion or use of NVE products in such applications and such inclusion or use is at the customer’s own risk. Should the customer use NVE products for such application whether authorized by NVE or not, the customer shall indemnify and hold NVE harmless against all claims and damages. Applications Applications described in this datasheet are illustrative only. NVE makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NVE products, and NVE accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NVE product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customers. Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NVE does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customers. The customer is responsible for all necessary testing for the customer’s applications and products using NVE products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customers. NVE accepts no liability in this respect. Limiting Values Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the recommended operating conditions of the datasheet is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and Conditions of Sale In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NVE hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NVE products by customer. No Offer to Sell or License Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 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In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NVE’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NVE’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NVE for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NVE’s standard warranty and NVE’s product specifications. 9 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation AFL-Series Digital Magnetic Sensors An ISO 9001 Certified Company NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 www.nve.com www.youtube.com/nveCorporation e-mail: sensor-info@nve.com ©NVE Corporation All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. SB-00-015_RevD October 2017 10 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 Fax: (952) 829-9189 www.nve.com ©NVE Corporation