Crocus Technology CT81xx Series Sensors for Window and Door Sensor Applications Brings High Sensitivity and Low Power Consumption
Security concerns are on the rise and the requirement for reliable, cost-effective solutions increases. At the core, that means high sensitivity, low-power digital switches, and latches.
Legacy solutions, like Reed switches, have traditionally been used because of their relatively low power consumption. The bad news is that they are fragile and can easily crack during manufacturing or during the lifetime of the product. They’re also difficult to acquire, due to manufacturing and supply chain delays.
The Global Home Security System market size continues to rapidly gain steam, with Acumen Research predicting a market size of $106.3 billion by 2030, growing at a CAGR of 8.6% from 2022 to 2030.
Security concerns are on the rise and the requirement for reliable, cost-effective solutions increases. At the core, that means high sensitivity, low-power digital switches, and latches.
Hall-effect sensors have also been used in smart lock systems for tamper detection and position sensing of doors and windows. Yet Hall-effect sensors routinely struggle with high power consumption output, temperature drift, and sensitivity.
Today, smart lock systems are moving to Tunneling Magnetoresistance sensors(TMR sensors), which have the decided advantage of offering both extremely high magnetic sensitivity and the lowest power consumption while being less susceptible to temperature change. Their high sensitivity performance and smaller form factor enable the designer to reduce the size of the magnet or select a lower-cost magnetic material with no rare-earth materials. And, unlike reed or Hall-effect sensors, even if the alignment is slightly off, TMR can detect from a longer distance/air gap and pick up the signal.
The Crocus CT81xx digital latches from Crocus Technologies offer stable magnetic performance over temperature for both indoor and outdoor conditions. The CT81xx series’ high sensitivity also enables the use of smaller magnets to realize lower cost and reduce form factor. On the flip side, it can also sense larger distance/air gaps, and its low power consumption is ideal for battery-operated applications, with longer operation time before recharging the battery. Critically, their current consumption is down to 110nA @ VDD=1.8V and fS=2Hz, with a supply voltage of 1.7V to 5.5V.
Also, a Smart Lock can incorporate a CT81xx series switch to signal an “open” or “closed” door or window condition by aligning the switch and magnet to the strike of the door (sensor output will signal low for a closed door or high for an open door).
Stable Magnetic Performance over Temperature also eliminates the need for additional overhead to compensate for variation which saves design time and cost, while their small form factor means they occupy only 2.10mm² of PCB area – ideal for use in portable devices and window and door sensors.
Their low profile, small form factor package offerings (3-lead SOT23, 5-lead SOT23, and 4-lead LGA, 1.45 x 1.45 x 0.44mm are RoHS and Green compliant excelling in reliability, with long operational lifetime over a wide temperature range. These are solid-state devices, so there are no failures due to mechanical fatigue – the opposite of, for example, fragile Reed switches, which often break during the manufacturing process or during the lifetime of the product.
The wide variety of Crocus Technology CT81xx series sensor applications ranges from IoT Devices, Wearable medical devices, and Smart Utility Meters to Door/Window Sensors and Fluid Level Detection.
Ultimately, security sensors are about peace of mind. The high sensitivity, low power consumption, small form factor, and durability of the Crocus CT81xx family of digital latches delivers just that.
- +1 Like
- Add to Favorites
Recommend
- Crocus’ XtremeSense® TMR CT81xx Sensors: a Combination of High Sensitivity, Low Power and Small Footprint for Medical Wearables Applications
- Crocus TMR Sensors Offer High Magnetic Sensitivity and Low Power Consumption for Smart Lock Systems
- Nxp Licenses Advanced TMR Sensor Technology From Crocus Technology
- US Patent and Trademark Office rules in favor of Crocus Technology in patent invalidation case
- Crocus Technology Acquired by Allegro MicroSystems to Accelerate Innovation in TMR Sensing Technology
- Crocus Technology and TowerJazz Qualified CTSX Magnetic Sensors and Volume Manufacturing Launched
- Crocus Technology’s new line of contactless current sensors with a signal-to-noise ratio as high as 77 dB
- Crocus Technology Launches First True Z-axis TMR Sensor Delivering Unparalleled Performance for Next-Gen Position and Current Sensing Applications
This document is provided by Sekorm Platform for VIP exclusive service. The copyright is owned by Sekorm. Without authorization, any medias, websites or individual are not allowed to reprint. When authorizing the reprint, the link of www.sekorm.com must be indicated.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
