ADV001-00E

ADV Sensors ADV001 Latching Bipolar Digital Switches Features: • • • • Latching bipolar operation (south field ON, north field OFF) Extremely low operate points for high sensitivity and wide airgaps Digital switch output MSOP8 and TDFN6 packages Description: The ADV001 is a GMR Digital Switch™ product using a unique bipolar output GMR material. This material allows a sensor with a negative (south pole) operate point and a positive (north pole) release point. The sensor can provide two travel limits with a single sensor, or be used with alternating north / south pole magnetic encoders. The sensor is extremely sensitive with typical operate/release points of ±4 oersteds. Operate points are also extremely stable over a temperature range of −40°C to +125°C. The high sensitivity and excellent temperature stability give the ADV001 better airgap performance and switching precision than other products. The output is on/off current-sinking. The IC is available in an MSOP8 (part number ADV001-00E) or 2.5 mm x 2.5 mm TDFN6 package (part number ADV001-10E). The following specifications are valid over all operating voltage and temperature ranges: Parameter Magnetic Operate Point1 Magnetic Release Point1 Operate/Release Differential Off-Axis Field Operating Supply Voltage (VCC) Quiescent Supply Current (VCC = 12 V) Output Drive Current VOL (VCC ≥ 5 V; 20 mA output sink current2) Frequency Response Temperature Range of Operation Min. −10 0 2 Typ. −4 4 4.5 Max. 0 10 12 250 30 Units Oersteds Oersteds Oersteds Oersteds Volts 2.5 0 4.5 20 mA mA 0.4 Volts KHz °C 100 −40 125 Notes: 1. VOL at VCC = 4.5 V may exceed 0.4 V. 2. 1 Oe (Oersted) = 1 Gauss in air = 0.1 mT. -1www.nve.com phone: 952-829-9217 fax: 952-829-9189 ADV Sensors Functional Block Diagram and Pinout ADV001-00E Vcc Out N/C N/C Output Direction of Sensitivity GMR Sensor N/C N/C N/C Ground Operation The magnetic field should be applied in the plane of the IC package in the direction of sensitivity (the cross-axis direction). The output is open collector, so an external pull-up resistor is required. The output is configured for pull-down when “ON.” The charts below show the response of the ADV001 bipolar sensor compared to typical sensors, which are “omnipolar”: Output On Output On On Off Off Field Field Figure 1a: Typical magnetic switch. Figure 1b: ADV001 bipolar magnetic sensor. -2www.nve.com phone: 952-829-9217 fax: 952-829-9189 ADV Sensors The following figures illustrate the sensor’s operation: S S a lftiien Co n N VdE N N ON OFF ON OFF OFF Figure 2a. Figure 2b. ON OFF Figure 2c. Figure 2d. A south magnetic field on the pin 8 side of the part (or a north field on the pin 1 side) turns the sensor on (Figure 2b). The output remains latched on (Figure 2c) until an opposite field is applied (Figure 2d). Typical Applications Ring-magnet encoder As illustrated in Fig. 3a, ADV001 sensors are ideal to detect the alternating north and south poles of a ringmagnet. Because of their extraordinary sensitivity, the sensors can be position a large distance from the ring magnet. Linear actuator with two travel limits ADV001 sensors can provide two travel limits with a single sensor, by positioning a north magnet pole at one limit, and a south pole at the other as illustrated below. The sensor output toggles at each limit, and can be used to set the direction of a reciprocating linear actuator as shown in Fig. 3b. Rotation Ac tu ato rT rav el South North Figure 3a. Ring-magnet encoder. Figure 3b. Linear actuator with two travel limits. -3www.nve.com phone: 952-829-9217 fax: 952-829-9189 ADV Sensors Package Drawings and Specifications MSOP8 (ADV001-00E) .118 (3.00) .118 (3.00) .193 (4.90) NVE XXX .118 (3.00) .021 (.533) .154 (3.91) .012 TYP. .034 (.86) .040 (1.02) Dimensions: inches (mm) .0256 (.65) X 6 .004 (.102) min .012 (.305) max Notes: 1. The MSOP8 package has thermal power dissipation of 320°C/Watt in free air. 2. Thermal performance is improved when the package is soldered to a circuit board. 2.5 mm x 2.5 mm TDFN6 (ADV001-10E) 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 0.30±0.05 (6X) 2.50 ± 0.10 0.0-0.05 0.30±0.05 0.65 TYP. (4X) 1.30 REF (2X) 0.20 REF dimensions in mm Notes: 1. The TDFN6 package has thermal power dissipation of 320°C/Watt in free air. 2. Thermal performance is improved when the package is soldered to a circuit board. -4www.nve.com phone: 952-829-9217 fax: 952-829-9189 ADV Sensors Package Pinout VCC Ground Out MSOP8 (ADV001-00E) Pin 1 Pin 5 Pin 8 TDFN6 (ADV001-10E) Pin 1 Pin 4 Pin 6 ©NVE Corporation All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. SB-00-016 March 2016 -5www.nve.com phone: 952-829-9217 fax: 952-829-9189 ADV 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. 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