Monolithic Hall Effect ICs EM-series EM-1781 Shipped in packet-tape reel(5000pcs/Reel) EM-1781 is ultra-small Hall effect ICs of a single silicon chip composed of Hall element and a signal processing IC. Omnipolar Hall Supply Voltage Effect Switch 1.65.5 Hall Element Pulse Excitation High Sensitivity Output Bop3mT CMOS SMT Notice:It is requested to read and accept "IMPORTANT NOTICE" written on the back of the front cover of this catalogue. Operational Characteristics VOUT S or N VOH H Marking BhS BhN VOL N or S L BopN BrpN 0 N-pole BrpS BopS S-pole Magnetic flux density Functional Block Diagram 1VDD Absolute Maximum RatingsTa=25 Symbol Min. Max. Unit Supply Voltage VDD -0.1 6.0 V Output Current IOUT -0.5 0.5 mA Storage Temperature Range TSTG -40 125 Dynamic Offset Cancellation Item Switch OSC Hall Chopper & Element SW Timing Logic Recommended Operating Conditions Item Symbol Min. Typ. Max. Unit Supply Voltage VDD 1.6 1.85 5.5 V Operating Temperature Range Topr -30 25 85 Magnetic and Electrical CharacteristicsTa=25 VDD=1.85V Conditions Item Symbol Operating Point IBopNI 1.4* 3.0 4.0 Releasing Point IBrpNI 1.1 2.2 3.7* BopS BrpS Hysteresis BhS IBhNI Period Tp Output High Voltage VOH Io=-0.5mA Output Low Voltage VOL Io=0.5mA Supply Current IDD Average Min. 0.3* Typ. Max. Unit Schmitt Trigger & Latch Latch Logic Output Stage Magnetic Characteristics Ta=-3085 VDD=1.85V mT Operating Point IBopNI 1.2 3.0 4.4 mT mT Releasing Point IBrpNI 0.9 2.2 4.1 mT 0.1 0.8 1.7 mT mT 50 100 ms V 0.4 V 9 A 1 mT=10Gauss Hysteresis Conditions Min. BopS BrpS BhS IBhNI Typ. Max. Unit Note) The above specifications are design targets. Application Circuit VDD CMOS OUTPUT OUT VDD EM-1781 N.C. Bypass Capacitor 0.1F VSS GND 41 4VSS Symbol 1.5* 6.5 AMP Item 0.8 VDD -0.4 The characteristics with *marks are design targets. 2OUT EM-1781 *Please be aware that our products are not intended for use in life support equipment, devices, or systems. Use of our products in such applications requires the advance written approval of our sales staff. Certain applications using semiconductor devices may involve potential risks of personal injury, property damage or loss of life. In order to minimize these risks, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards. Inclusion of our products in such applications is understood to be fully at the risk of the customer using our devices or systems. b 2.1 1.3 0.3 0.50 1 2.10.2 1.25 0.3 Sensor center 00.1 0.90 2 (For reference only)Land PatternUnit:mm) 0.25 PackageUnit:mm) 5 5 4 1.90 3 0.1 Sensor center 0.4 0.1 0.55-0 0.3 0.25 5 5 Pin No. 1 2 3 4 Note Pin Name Function VDD Power Supply OUT Output N.C. - Short to Ground VSS Ground Note1) The sensor center is located within the 0.3mm circle. Note2) The tolerances of dimensions with no mentions is 0.1mm. Note3) Coplanarity:The differences between standoff of terminals are max.0.1mm. Note4) The sensor part is located 0.4mm(typ.) far from marking surface. Supply Voltage 1.30 IDD Pulse DrivingVDD=1.85V 6 50mstyp. IDD 146styp. 5 Supply Voltage V f IDD ON TYP : 1.8mA 4 j 3 2 IDD TYP : 6.5A 1 0 -40 IDD OFF TYP : 1.3A -20 0 20 40 60 80 time 100 Ambient Temperature Temperature Dependence of Bop. Brp Function Timing Chart IDD Operating Point mT 6 4 n BopS 2 t B BrpS 0 Bop VDD1.85V t B Brp VOUT High BopN -4 0 50 Ambient Temperature 100 48.8s typ. t VOUT High 48.8s typ. t Low Low t t Operating Point Timing o p BrpN -2 -6 -50 IDD Releasing Point Timing This Hall effect IC s output is held as internal data just before the internal circuit turns OFF (IDD OFF). And after 48.8 s, the output changes. 42 IMPORTANT NOTICE These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei Microdevices Corporation (AKM) or authorized distributors as to current status of the products. Descriptions of external circuits, application circuits, software and other related information contained in this document are provided only to illustrate the operation and application examples of the semiconductor products. You are fully responsible for the incorporation of these external circuits, application circuits, software and other related information in the design of your equipments. AKM assumes no responsibility for any losses incurred by you or third parties arising from the use of these information herein. AKM assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of such information contained herein. Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. AKM products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or other hazard related device or systemNote2), and AKM assumes no responsibility for such use, except for the use approved with the express written consent by Representative Director of AKM. As used here: Note1) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. It is the responsibility of the buyer or distributor of AKM products, who distributes, disposes of, or otherwise places the product with a third party, to notify such third party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification. February 21, 2013