CT81xx Smart Locks
■New keyless, smart locks are emerging and replacing the traditional key deadbolt locks. With this new technology, the key is no longer used, and the deadbolt position is now controlled by the smart lock itself and not the user with their key. Manufacturers of the new smart locks use various methods to determine the dead bolt position and travel. As with any security-based product, reliability and repeatability are a stringent requirement. The absolute position of the deadbolt needs to be known for the lock to accurately work with no issue. Hence, implementation of a sensor system to determine absolute position is the best solution. Crocus Technology offers switches that when used with a complementary magnet will provide absolute position feedback. This solution will be plug ‘n play and does not require the user to run through a complicated calibration procedure for some smart locks. As the smart locks are battery operated, the CT81xx Series will provide extended life drawing less than 110 nA of current.
■Also of note, an additional switch can be integrated into the smart lock design to determine if the door is open or closed. This is an added feature that can alert the user of any security issues.
●Features and Benefits
■Accurate deadbolt position detection
■Long battery life with less than 110 nA
■Plug and play implementation
■Digital output
■Cost Competitive
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2021/8/19 |
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Rev0.4 |
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AN109 |
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668 KB |
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