Product Catalog. Advanced Switching and Magnetic Sensing Solutions
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1 Product Catalog Advanced Switching and Magnetic Sensing Solutions
2 REDROCK RR0 TMR ANALOG SENSOR RedRock RR0 TMR Analog Sensor The RedRock 0 Series is an analog magnetic sensor, ideal for use in medical, industrial, automotive, and consumer applications. Based on patented Tunneling Magnetoresistance (TMR) technology, the RR0 Series excels even in low magnetic fields and with large air gaps. The RR0 Series offers high sensitivity in a small footprint package. Features u High sensitivity u Stable temperature performance u Resistant to mechanical stress u REACH Compliant u RoHS Compliant IDEAL APPLICATIONS u Door or lid closure detection u Smart phones, tablets and laptops u Proximity detection u Position sensing u Water, electric and gas meters u Fluid level detection DIMENSIONS in Millimeters (Inches) Top View End View.45±0.0 (0.057 ±.008).90±0.5 (0.4 ±.006).0±0.0 (.047 ±.008).80±0.5 (.0±.00).60±0.5 (0.06 ±.006) 0.0±0.0 (.004 ±.004) 0.44±0.5 (.07 ±.006) 0.6 (0.04) Side View.90 (0.075) 0.40±0.5 (.06 ±.006).0±0.5 (.04±.006) Vdd VOUT Ordering Information Part Number RR0-A X -0 0 Model Number Magnetoresistance (kω) A: 65kW@ 0 G, 40kW@ 00 G Temp Rating (ºC) - Industrial ( ) Feature - Default Value Package 0 - SOT- Special Feature 0 - N/A Magnetic Polarity = Unipolar COTO TECHNOLOGY tel: (40) cotorelay.com
3 REDROCK RR0 TMR ANALOG SENSOR REDROCK RR0 Parameters Units Min Typ Max OPERATING CHARACTERISTICS Gauss kw 65 Gauss kw 40 Response Time ns 600 Temperature Coefficient of Resistance (at 0 field) Ω/ºC -5 ELECTRICAL CHARACTERISTICS Supply Voltage V dd 5 Operating Current 4 ma 00 ABSOLUTE ENVIRONMENTAL RATINGS Operating Temperature: Industrial ºC Storage Temperature ºC Soldering Temperature ( cycles of min.) ºC 60 Operating Magnetic Field G 00 ESD Level (HBM) V See Note Notes:. Contact factory for more information on additional product offerings.. All characteristics as measured at 5ºC. ESD PRECAUTIONS MUST BE USED WHEN HANDLING. 4. The RR0 may be operated at lower currents to reduce power consumption, or at higher currents for greater voltage output, as long as the limits noted in the electrical characteristics are not exceeded. MAGNETIC SENSITIVITY TRANSFER CURVE The magnetic sensitivity transfer curve illustrates the characteristic behavior of an analog TMR sensor s resistance change as the strength of an applied magnetic field changes. The magnet approach curve (red line) shows the change in resistance as the strength of an applied magnetic field increases. The magnet recede curve (blue dashed line) shows the change in resistance as the strength of an applied magnetic field decreases. Alternatively, you can think of the resistance going down the red slope as a magnet approaches the sensor, and going up the blue dashed slope as the magnet moves further away from the sensor. 70 Typical Sensor Resistance (kω) HYSTERESIS SENSOR POLARITY DIAGRAM S N Field Strength (G) N-Pole Magnet Approaching Sensor N-Pole Magnet Receding from Sensor COTO TECHNOLOGY tel: (40) cotorelay.com
4 REDROCK RR0 TMR DIGITAL SENSOR RedRock RR0 TMR Digital Sensor The RedRock 0 Series is an integrated digital magnetic sensor ideal for use in medical, industrial, automotive and consumer switching applications. Based on patented Tunneling Magnetoresistance (TMR) technology with CMOS process, the RR0 Series can function even in low magnetic fields with large air gaps. The RR0 Series provides high sensitivity with low power consumption in a small footprint package. Features u High sensitivity u Stable temperature performance u Resistant to mechanical stress u Low power consumption u High frequency performance u Logic output for design flexibility u REACH Compliant u RoHS Compliant IDEAL APPLICATIONS u Door or lid closure detection u Smart phones, tablets and laptops u Bare glass reed switch replacement u Motor controllers u Proximity detection u Open-close detection u Water, electric and gas meters u Fluid level detection u Wake-Up functionality DIMENSIONS in Millimeters (Inches) Top View End View.45±0.0 (0.057 ±.008).90±0.5 (0.4 ±.006).0±0.0 (.047 ±.008).80±0.5 (.0±.00).60±0.5 (0.06 ±.006) 0.0±0.0 (.004 ±.004) 0.44±0.5 (.07 ±.006) 0.6 (0.04) Side View.90 (0.075) 0.40±0.5 (.06 ±.006).0±0.5 (.04±.006) Vdd VOUT Ordering Information Part Number RR0-A X X-X 0 Model Number Magnetic Sensitivity (G) A - Op = 0 Rel = 5 Temp Rating (ºC) - Industrial ( ) Power Rating - Default Value Package 0 - SOT- Special Feature 0 - N/A Magnetic Polarity = Unipolar 4 COTO TECHNOLOGY tel: (40) cotorelay.com
5 REDROCK RR0 TMR DIGITAL SENSOR REDROCK RR0 Parameters Units Min Typ Max OPERATING CHARACTERISTICS Operate Sensitivity G Release Sensitivity G Hysteresis G 5 Operate Time ms 0 Release Time ms 0 Temperature Coefficient of Operate Sensitivity G/ºC ELECTRICAL CHARACTERISTICS Supply Voltage (V dd) V Average Current Drain na Output Voltage (High) (V outh) V.7 V Output Voltage (Low) (V outl) V 0. V ABSOLUTE ENVIRONMENTAL RATINGS Operating Temperature: Industrial ºC Storage Temperature ºC Soldering Temperature ( cycles, min.) ºC 60 Operating Magnetic Field G 00 ESD Level (HBM) V 4000 Notes:. All characteristics as measured at 5ºC. See "Magnetic Field vs. Output Status" (at right) for more details. SENSOR POLARITY DIAGRAM S N RR0 DIGITAL FUNCTION BLOCK DIAGRAM Vdd MAGNETIC FIELD (GAUSS) OUTPUT STATUS (VOLTS) MAGNETIC FIELD vs. OUTPUT STATUS B OP = 0G TIME B RP = 5G Characteristic North Pole Null or Weak Magnetic Field South Pole HYSTERESIS B OP -B RP = 50% B OP Conditions B > BOP B < BRP B > BOP Output OUTPUT HIGH = OFF OUTPUT LOW = ON MTJ SENSOR LOCATION DIAGRAM Low High High CURRENT SOURCE TMR SENSOR VREF B op/b rp Comparators DUTY CYCLE CONTROL OUTPUT LOGIC & LATCH DIGITAL OUTPUT C D B A Symbols A B C D Nominal Dimensions COTO TECHNOLOGY tel: (40) cotorelay.com 5
6 REDROCK RR0 TMR DIGITAL SWITCH RedRock RR0 TMR Digital Switch The RedRock 0 Series is an integrated digital magnetic switch ideal for use in medical, industrial, automotive and consumer switching applications. It is based on patented Tunneling Magnetoresistance (TMR) technology with integrated CMOS process. The RR0 Series can operate in low magnetic fields with large air gaps. The open drain output can interface with a system voltage up to.9v for added design flexibility. The RR0 Series provides high sensitivity with low power consumption in a small footprint package. Features u High sensitivity u Stable temperature performance u Resistant to mechanical stress u Low power consumption u High frequency performance u Open drain MOSFET for design flexibility u REACH Compliant u RoHS Compliant IDEAL APPLICATIONS u Door or lid closure detection u Smart phones, tablets and laptops u Bare glass reed switch replacement u Motor controllers u Proximity detection u Power switch or open-close detection u Water, electric and gas meters u Fluid level detection u Wake-Up functionality DIMENSIONS in Millimeters (Inches) Top View End View.45±0.0 (0.057 ±.008).90±0.5 (0.4 ±.006).0±0.0 (.047 ±.008).80±0.5 (.0±.00).60±0.5 (0.06 ±.006) 0.0±0.0 (.004 ±.004) 0.44±0.5 (.07 ±.006) 0.6 (0.04) Side View.90 (0.075) 0.40±0.5 (.06 ±.006).0±0.5 (.04±.006) Vdd VOUT Ordering Information Part Number RR0-A X X-X 0 Model Number Magnetic Sensitivity (G) A - Op = 0 Rel = 5 Temp Rating (ºC) - Industrial ( ) Power Rating - Default Value Package 0 - SOT- Special Feature 0 - N/A Magnetic Polarity = Unipolar 6 COTO TECHNOLOGY tel: (40) cotorelay.com
7 REDROCK RR0 TMR DIGITAL SWITCH REDROCK RR0 Parameters Units Min Typ Max OPERATING CHARACTERISTICS Operate Sensitivity G Release Sensitivity G Hysteresis G 5 Operate Time ms 0 Release Time ms 0 Temperature Coefficient of Operate Sensitivity G/ºC ELECTRICAL CHARACTERISTICS Supply Voltage (V dd) V Average Current Drain na System Voltage (V sys) V V dd + 0. System Current (I sys) ma 5 ABSOLUTE ENVIRONMENTAL RATINGS Operating Temperature: Industrial ºC Storage Temperature ºC Soldering Temperature ºC 60 Max. Exposed Magnetic Field G 00 ESD Level (HBM) V 4000 Notes:. All characteristics as measured at 5ºC. See "Application Circuit" for more information. APPLICATION CIRCUIT RR0 Open Drain Output Application Circuit With the open drain output, the system voltage can range up to V dd + 0.V. Please keep in mind the supply voltage to the RR0 must remain at.6v. A decoupling capacitor between the supply voltage and ground is required with placement close to the magnetic sensor. A typical capacitor value of 0. mf will suffice. SENSOR POLARITY DIAGRAM S N 0.mF V dd MTJ SENSOR LOCATION DIAGRAM C Symbols A B RR0 V SYS B D Nominal Dimensions Symbols.60 C.90 D R PULLUP V OUT A Nominal Dimensions MAGNETIC FIELD vs. OUTPUT STATUS B OP = 0G RR0 DIGITAL FUNCTION BLOCK DIAGRAM COTO TECHNOLOGY tel: (40) cotorelay.com 7 MAGNETIC FIELD (GAUSS) OUTPUT STATUS (VOLTS) CURRENT SOURCE TMR SENSOR VREF TIME Vdd Bop/Brp Comparators B RP = 5G Characteristic North Pole Null or Weak Magnetic Field South Pole DUTY CYCLE CONTROL OUTPUT LOGIC & LATCH HYSTERESIS B OP -B RP = 50% B OP Conditions B > BOP B < BRP B > BOP OUTPUT HIGH = OFF OUTPUT LOW = ON Output Low High High DIGITAL OUTPUT
8 TMR TECHNICAL & APPLICATIONS INFORMATION TMR SENSOR & SWITCH PACKAGING Standard packaging is Tape & Reel containing,000 pieces. Below is a chart of Tape & Reel dimensions for standard TMR products. 4.0 ± 0.0 Ø ± ± 0..5 ± ± ± 0.0 see Fig. A below see Fig. B below Ø. ± ± º MAX.(X) Ao. ± 0.. ± 0. 5º MAX.(X) 5º MAX.(X) R0. 5º MAX. R0. R0. Bo. ± ± R0. Ko.47 ± 0. Fig. A mm mm Ø78.0±0.05 Ø60.0±0.05 Ø78.0±0.05 Ø60.0±0.05 Fig. B.± EIAJ Ø.5± COTO TECHNOLOGY tel: (40) cotorelay.com
9 TMR TECHNICAL & APPLICATIONS INFORMATION SUGGESTED SOLDER PAD LAYOUT SUGGESTED REFLOW PROFILE X X Temperature (ºC) s Typical Soak Preheat at - ºC/s 60 SECONDS MAXIMUM 60 ºC Max (Lead-Free) ºC Max Range (Leaded) Cool Down -4 ºC/s Time (s) (Units in mm) Notes:. Fully compatible with standard no-lead solder profile, 60 ºC for minute max ( cycles max). Profile shown as example. Users are advised to develop their own board-level profile. Temperature tolerance: +0 ºC, as measured at any point on the package or leads 4. MSL rating of compatible with J-STD-00 or equivalent. APPLICATION CIRCUITS V dd V dd R V OUT OR Constant Current V OUT V dd 0.mF RR0 V OUT V dd 0.mF RR0 V SYS R PULLUP RR0 RR0 V OUT RR0 Magnetoresistance Application Circuit The RR0 can be configured with a constant voltage source and a fixed resistor to create a voltage divider circuit. Alternatively, a constant current source eliminates the need for a fixed resistor. RR0 Digital Output Application Circuit The output voltage on the RR0 is active low, meaning that while a sufficiently strong magnetic field is present, the output voltage is low. The output voltage can be connected to a digital I/O pin on a microcontroller. A decoupling capacitor between the supply voltage and ground is required with placement close to the magnetic sensor. A typical capacitor value of 0. mf will suffice. RR0 Open Drain Output Application Circuit With the open drain output, the system voltage can range up to V dd + 0.V. Please keep in mind the supply voltage to the RR0 must remain at.6v. A decoupling capacitor between the supply voltage and ground is required with placement close to the magnetic sensor. A typical capacitor value of 0. mf will suffice. COTO TECHNOLOGY tel: (40) cotorelay.com 9
10 TMR TECHNICAL & APPLICATIONS INFORMATION GLOSSARY OF TERMS Hysteresis: Hysteresis refers to the difference between two points of interest for a particular device. For digital sensors and switches, it represents the difference between the operate sensitivity and the release sensitivity, expressed either as an absolute value (B OP B RP ) or the % difference (B OP B RP )/B OP. For an analog sensor, the hysteresis is the difference between the magnet approach curve and the magnet recede curve. Magnet Approach Curve: The magnet approach curve is the characteristic change in resistance of an analog TMR sensor as an applied magnetic field approaches the sensor, typically plotted as a function of the magnetic field strength. Magnet Recede Curve: The magnet recede curve is the characteristic change in resistance of an analog TMR sensor as an applied magnetic field recedes from the sensor, typically plotted as a function of the magnetic field strength. Magnetoresistance: Magnetoresistance is a phenomenon wherein the electrical resistance of certain materials changes when exposed to an externally-applied magnetic field. Magnetic Transfer Curve: The magnetic transfer curve defines the characteristic behavior of an analog TMR sensor by combining both the magnet approach curve and the magnet receive curve together. Operate Sensitivity: The operate sensitivity defines the upper limit of the strength of an applied magnetic field that a digital TMR sensor or switch must operate. Operate Time: The operate time is the difference, in time, between the application of a magnetic field and the output response of the device. In an analog sensor, the response is a change in output resistance. In a digital sensor, the response is a change in state of the electrical output. Release Sensitivity: The release sensitivity defines the lower limit of the strength of an applied magnetic field that a digital TMR sensor or switch must release. Release Time: The release time is the difference, in time, between the removal of an applied magnetic field and the output response of the device. In an analog sensor, the response is a change in output resistance. In a digital sensor, the response is a change in state of the electrical output. Tunnel Magnetoresistance (TMR): Tunnel Magnetoresistance is the magnetoresistive effect that occurs in a magnetic tunnel junction. Magnetic Tunnel Junction: A magnetic tunnel junction is a thin film structure consisting of two magnetic layers separated by a thin insulator. Because the insulating layer is thin enough (typically a few nanometers), electrons can tunnel from one magnetic layer into the other. 0 COTO TECHNOLOGY tel: (40) cotorelay.com
11 TMR TECHNICAL & APPLICATIONS INFORMATION MAGNETIC SENSITIVITY MAPS Magnetic sensitivity maps show the operate and release loci in threedimensional space when a magnet is presented to a magnetically operated switch or sensor. The absolute operate and release distances between the magnet and the sensor will vary depending on the sensitivity of the switch and the strength of the magnet. However, the shape and direction of the operate loci stay relatively constant except for cases where the magnet is physically much larger than the sensor. These plots were generated using a mm^ cubic shaped NdFeB N5 magnet with its North pole presented to the ground pin and a South pole presented to the opposite side. RR0/RR0 Magnetic Sensitivity Pattern, perspective view RR0/RR0 Magnetic Sensitivity Pattern, YZ plane Operate Points 0 Release Points RR0/RR0 Magnetic Sensitivity Pattern, XY plane RR0/RR0 Magnetic Sensitivity Pattern, XZ plane COTO TECHNOLOGY tel: (40) cotorelay.com
12 66 Whitecap Drive North Kingstown, RI Fax: Copyright Coto Technology 07. All rights reserved.
2 Features. u High sensitivity. u Stable temperature performance. u Resistant to mechanical stress. u Low power consumption
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