Smart lock reference design enables long battery life
With the increasing number of building and home owners looking to retrofit smart locks (or electronic locks) to their building or home, wireless battery powered smart locks are becoming increasingly popular in today’s market. In a smart lock application, the high current motor and radio often drains the battery quickly, causing battery life to suffer.
Replacing multiple batteries can be a time consuming and costly issue, and thus lowering the average current consumption is often a key design consideration. This reference design from Texas Instruments tackles these problems.
Features
- Over five years battery life on 4x AA batteries in series.
- 24 lock or unlock events per day.
- BLE radio connection period.
- Motor Driver has integrated FET’s and a current sense comparator which enables easy design and small solution size with minimal discrete components.
- Voltage-based battery gas gauge, integrated DC-DC converter.
- BLE tested using third party BLE iOS and Android applications.
- Configurable advertisement interval up to four seconds.
To find the reference design, click here.
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