TMR6218 AEC | Alldatasheet

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Technical content

Datasheet V1.0a TMR6218

18 Channels Currency Head

The TMR62 18 magnetic pattern recognition sensor consists of Tunneling Magnetoresistance (TMR) sensing elements, a high-quality magnet,a robust plastic base with outstanding mechanical strength,and a durable non-magnetic stainless steel cover.The physical structure is shown in Fig. 1. Features and Benefits The TMR62 18 series of TMR magnetic pattern recognition sensoris a magnetic signal reader head for use in detecting and recognizing the magnetic properties of paper bills, bank notes,and securities documents. Designed with outstanding weak field detection capability of MDT’s TMR technology,along with a custom ized hollow- shaped bias magnet, the TMR62 18 features high sensitivity, high signal to noise ratio, and wide air-gap tolerance, and it is not susceptible to tilt or misalignment in installationor shock and vibration along the vertical direction (Z-axis) during operation. The TMR6218 sensor series applies high mechanical strength plastic,and solid, hard -wearing non -magnetic stainless steel materials, and it achieves a compact, miniaturized, light -weight and robust structural design. It can significantly simplify the design of s tructural components of financial machinery and measurement equipment,and it can release installation and maintenance procedures from complicated requirements. The TMR6218 sensor series uses a single base formultiple sets of TMR sensing elements. The custo m designed,integrated packaging and testing process ensures that the multiple sets of TMR sensing elements can cover the designated detection area seamlessly.

Applications

 Bill Counter and validator  Bill sorter  ATM  Bill reader and validator in automated vending machines  Reader head of magnetic card reader TMR6218

Datasheet V1.0a Schematic and Pin Configuration ② Vcc ① V+③ V- ④ GND MR01a MR01cMR01b MR01d TMR Sensor Structure Pin Definition Outline Drawing and Dimensions (mm) TMR6218 Dimension Drawing

Datasheet V1.0a TMR6218A Dimension Drawing Note: TMR6218 and TMR6128A have differnet dimensions of the mounting notchon the top cover. Absolute Maximum Ratings Parameter Symbol Limit Unit Supply Voltage VCC 5.5 V Operating Temperature TA -10 ~60 °C Storage Temperature Tstg -30 ~85 °C ESD Level VESD 2000 V Electrical Property （TA=25°C） Parameter Symbol Conditions Min Typ Max Unit Sensitivity(V) S(1) VCC =5V 0.30 0.55 0.80 mVrms Resistance(Ω) R Zero magnetic field 0.5 - 3.0 kOhm Symmetry to Middle Point (%) d I=1mA - 5 % - Noise (μVrms) Vnw (2) VCC =5V - 50 - μVpp Magnetic Field(G) B At sensing surface (S pole) - 800 1000 G Number of Channels C 18 Detecting Width (mm) W - - 10 - mm Resolution (mm) T - - 0.475 - mm Consistency of Sensitivity ΔS 15 % Notes: (1) The sensitivity of the TMR pattern recognition sensor is measured by a method using a current conducting wire, which is widely adopted in testing of financial machinery and measurement equipment. A 0.1mm metal conducting wire is oriented orthogonally vs. the sensing direction of the reader head, and the wire carries an AC current of 100mA at 60Hz. The reader head is placed above the conducting wire at a distance of 0.1mm, which is the typical thickness of an RMB paper bill. When the reader head moves along its sensing direction, the sensitivity is equal to the peak-to-peak voltage output of the detected AC si gnal amplified by 750 times. Since the TMR pattern recognition sensor is sensitive to the direction that is parallel to the detection surface, while the conducting wire can only produce a much weaker magnetic field in the parallel direction

Datasheet V1.0a than in the perpendicular direction, it is recommended that users shall verify the TMR reader head sensor using the bill counter or bill validator under real operating conditions. In general, the high sensitivity of the TMR pattern recognition sensor ensures the stabl e output from the magnetized code words and weak magnetic patterns on an RMB paper bill. (2) The noise is measured by the peak -to-peak voltage signal output of the reader head sensor after applying an amplifying circuit with 1kHz bandwidth and a gainof 10000.

Datasheet V1.0a MultiDimension Technology Co., Ltd. Address:No.7 Guangdong Road, Zhangjiagang Free Trade Zone, Jiangsu, 215634, China Web: www.dowaytech.com/en Email: info@dowaytech.com The information provided herein by MultiDimension Technology Co., Ltd. (hereinafter MultiDimension) is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MultiDimension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. MultiDimension does not assume any liability arising out of the application and use of its products. MultiDimension’s customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in pe rsonal injury do so at their own risk and agree to fully indemnify MultiDimension for any damages resulting from such applications.