Smart Lock Reference Design: Extended Battery Life

This document presents a reference design by Texas Instruments for a smart lock system engineered for exceptional battery longevity. Addressing the common challenge of rapid battery drain in wireless smart locks, this design focuses on achieving over five years of operation using standard AA batteries.

Key Features & Benefits

• Extended Battery Life: Engineered for over five years of operation on four AA batteries.
• Ultra-Low Power Consumption: Achieves an average current consumption of 58.2 µA for typical daily usage (24 lock/unlock events).
• Optimized System Design: Utilizes efficient power topologies, an integrated Bluetooth® low energy MCU, and a low-power motor driver.
• Reduced Complexity: Integrates key components for a smaller form factor and easier design implementation.

Applications

This reference design is suitable for a variety of applications, including:

• Electronic Smart Locks
• Door Keypads and Readers
• Building Automation Systems
• Building Security Systems
• HVAC Valve and Actuator Control

Learn More

Discover the detailed system design, component selection, and performance analysis. Visit Texas Instruments for more information on this and other innovative solutions.