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[原创] TI TIDA-00757 5+年电池寿命智能锁参考设计

关键词:ARM Cortex-M3 MCU 无线MCU 智能家居 智能锁 TIDA-00757 5+

时间:2017-10-13 10:46:42       作者:TI       来源:中电网

TI公司的TIDA-00757是采用4节AA电池的有5年电池寿命的基于CC2640无线MCU的智能锁参考设计,具有超低功耗,每天开关锁24次的平均总功耗为58.2 μA,待机电流为4.6μA,61 μA / MHz ARM® Cortex®-M3,DC/DC转换器平均功耗为33.4 μA,主要用在电子智能锁,门键盘和阅读器,建筑物自动化和安全系统,HVAC阀门和激励器控制.本文介绍了SimpleLink™蓝牙无线MCU CC2640主要特性和功能框图,5+年电池寿命的智能锁参考设计TIDA-00757主要特性和指标,框图,电路图,材料清单和PCB设计图.

The CC2640 device is a wireless MCU targeting Bluetooth applications.The device is a member of the CC26xx family of cost-effective, ultralow power, 2.4-GHz RF devices. Verylow active RF and MCU current and low-power mode current consumption provide excellent batterylifetime and allow for operation on small coin cell batteries and in energy-harvesting applications.

The CC2640 device contains a 32-bit ARM Cortex-M3 processor that runs at 48 MHz as the mainprocessor and a rich peripheral feature set that includes a unique ultralow power sensor controller. Thissensor controller is ideal for interfacing external sensors and for collecting analog and digital dataautonomously while the rest of the system is in sleep mode. Thus, the CC2640 device is ideal for a widerange of applications where long battery lifetime, small form factor, and ease of use is important.

The Bluetooth Low Energy controller is embedded into ROM and runs partly on an ARM Cortex-M0processor. This architecture improves overall system performance and power consumption and frees upflash memory for the application.

CC2640主要特性:

• Microcontroller
– Powerful ARM® Cortex®-M3
– EEMBC CoreMark® Score: 142
– Up to 48-MHz Clock Speed
– 128KB of In-System Programmable Flash
– 8KB of SRAM for Cache
– 20KB of Ultralow-Leakage SRAM
– 2-Pin cJTAG and JTAG Debugging
– Supports Over-The-Air Upgrade (OTA)
• Ultralow-Power Sensor Controller
– Can Run Autonomous From the Rest of theSystem
– 16-Bit Architecture
– 2KB of Ultralow-Leakage SRAM for Code andData
• Efficient Code Size Architecture, Placing Drivers,Bluetooth® Low Energy Controller, and Bootloaderin ROM
• RoHS-Compliant Packages
– 4-mm × 4-mm RSM VQFN32 (10 GPIOs)
– 5-mm × 5-mm RHB VQFN32 (15 GPIOs)
– 7-mm × 7-mm RGZ VQFN48 (31 GPIOs)
• Peripherals
– All Digital Peripheral Pins Can Be Routed toAny GPIO
– Four General-Purpose Timer Modules(Eight 16-Bit or Four 32-Bit Timers, PWM Each)
– 12-Bit ADC, 200-ksamples/s, 8-Channel AnalogMUX
– Continuous Time Comparator
– Ultralow-Power Analog Comparator
– Programmable Current Source
– UART
– 2× SSI (SPI, MICROWIRE, TI)
– I2C
– I2S
– Real-Time Clock (RTC)
– AES-128 Security Module
– True Random Number Generator (TRNG)
– 10, 15, or 31 GPIOs, Depending on PackageOption
– Support for Eight Capacitive-Sensing Buttons
– Integrated Temperature Sensor
• External System
– On-Chip internal DC-DC Converter
– Very Few External Components
– Seamless Integration With the SimpleLink™CC2590 and CC2592 Range Extenders
– Pin Compatible With the SimpleLink CC13xx in4-mm × 4-mm and 5-mm × 5-mm VQFN Packages
• Low Power
– Wide Supply Voltage Range
• Normal Operation: 1.8 to 3.8 V
• External Regulator Mode: 1.7 to 1.95 V
– Active-Mode RX: 5.9 mA
– Active-Mode TX at 0 dBm: 6.1 mA
– Active-Mode TX at +5 dBm: 9.1 mA
– Active-Mode MCU: 61 μA/MHz
– Active-Mode MCU: 48.5 CoreMark/mA
– Active-Mode Sensor Controller: 8.2 μA/MHz
– Standby: 1 μA (RTC Running and RAM/CPURetention)
– Shutdown: 100 nA (Wake Up on ExternalEvents)
• RF Section
– 2.4-GHz RF Transceiver Compatible WithBluetooth Low Energy (BLE) 4.2 Specification
– Excellent Receiver Sensitivity (–97 dBm forBLE), Selectivity, and Blocking Performance
– Link budget of 102 dB for BLE
– Programmable Output Power up to +5 dBm
– Single-Ended or Differential RF Interface
– Suitable for Systems Targeting Compliance WithWorldwide Radio Frequency Regulations
• ETSI EN 300 328 (Europe)
• EN 300 440 Class 2 (Europe)
• FCC CFR47 Part 15 (US)
• ARIB STD-T66 (Japan)
• Tools and Development Environment
– Full-Feature and Low-Cost Development Kits
– Multiple Reference Designs for Different RFConfigurations
– Packet Sniffer PC Software
– Sensor Controller Studio
– SmartRF™ Studio
– SmartRF Flash Programmer 2
– IAR Embedded Workbench® for ARM
– Code Composer Studio™

CC2640应用:

• Home and Building Automation
– Connected Appliances
– Lighting
– Locks
– Gateways
– Security Systems
• Industrial
– Logistics
– Production and Manufacturing
– Automation
– Asset Tracking and Management
– Remote Display
– Cable Replacement
– HMI
– Access Control
• Retail
– Beacons
– Advertising
– ESL and Price Tags
– Point of Sales and Payment Systems
• Health and Medical
– Thermometers
– SpO2
– Blood Glucose and Pressure Meters
– Weight Scales
– Vitals Monitoring
– Hearing Aids
• Sports and Fitness
– Activity Monitors and Fitness Trackers
– Heart Rate Monitors
– Running Sensors
– Biking Sensors
– Sports Watches
– Gym Equipment
– Team Sports Equipment
• HID
– Remote Controls
– Keyboards and Mice
– Gaming
• Accessories
– Toys
– Trackers
– Luggage Tags
– Wearables

图1.CC2640功能框图

5+年电池寿命的智能锁参考设计TIDA-00757

With the increasing number of building and homeowners looking to retrofit smart locks (or electroniclocks) to their buildings or homes, wireless batterypoweredsmart locks are becoming increasinglypopular in today’s market. In a smart lock application,the high-current motor and radio often drain the batteryquickly, causing battery life to suffer. Replacingmultiple batteries can be a time-consuming and costlyissue, therefore lowering the average currentconsumption is often a key design consideration.

智能锁参考设计TIDA-00757主要特性:

• Five Years of Battery Life Using Four AA Batteries
• Ultra-Low-Power Consumption:
– Total Average Current Consumption of 58.2 μA(24 Locks and Unlocks Per Day)
– 4.6-μA Standby Current
– 61 μA / MHz ARM® Cortex®-M3
– DC-DC Converter Uses 33.4 μA of AveragePower (500-ms Advertisement Interval)
• Integrated Bluetooth® Radio and MCU for SmallerForm Factor
• Motor Driver Has Integrated FETs and CurrentSense Comparator, Enabling Easy Design andSmall Solution Size With Minimal Discretes
• Configurable Advertisement Interval up to 4Seconds

智能锁参考设计TIDA-00757应用:

• Electronic Smart Lock
• Door Keypads and Readers
• Building Automation
• Building Security Systems
• HVAC Valve and Actuator Control
智能锁参考设计TIDA-00757主要指标:


图2.智能锁参考设计TIDA-00757外形图

图3.智能锁参考设计TIDA-00757框图

图4.SmartRF06评估板和TI参考设计TIDA-00757的编车程和调试连接图

图5.智能锁参考设计TIDA-00757电路图(1)

图6.智能锁参考设计TIDA-00757电路图(2)

图7.智能锁参考设计TIDA-00757电路图(3)
智能锁参考设计TIDA-00757材料清单:


图8.智能锁参考设计TIDA-00757 PCB设计图(1)

图9.智能锁参考设计TIDA-00757 PCB设计图(2)

图10.智能锁参考设计TIDA-00757 PCB设计图(3)

图11.智能锁参考设计TIDA-00757 PCB设计图(4)

图12.智能锁参考设计TIDA-00757 PCB设计图(5)

图13.智能锁参考设计TIDA-00757 PCB设计图(6)

图14.智能锁参考设计TIDA-00757 PCB设计图(7)

图15.智能锁参考设计TIDA-00757 PCB设计图(8)

图16.智能锁参考设计TIDA-00757 PCB设计图(9)

图17.智能锁参考设计TIDA-00757 PCB设计图(10)
详情请见:
http://www.ti.com/lit/ds/symlink/cc2640.pdf
http://www.ti.com/lit/ug/tidubv3a/tidubv3a.pdf
以及http://www.ti.com/lit/df/tidrmq3/tidrmq3.pdf
http://www.ti.com/lit/df/tidrmq4/tidrmq4.pdf
http://www.ti.com/lit/df/tidrmq6/tidrmq6.pdf
cc2640.pdf
tidrmq3.pdf
tidrmq4.pdf
tidrmq6.pdf
tidubv3a.pdf

 

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