Renesas has developed a cutting-edge reference design for flammable gas leakage detection, leveraging the capabilities of the RZ/A2M Microcontroller Unit (MCU). This winning combination system features smart connectivity through Bluetooth Low Energy (LE) 5.1 communication, enhancing its utility in both industrial and household applications.
The key component of this system is the single MCU, which integrates Bluetooth LE communication, a DC/DC block, and a 10-bit ADC. This integration simplifies the implementation process, allowing for a quick and seamless setup of a reliable gas leakage detection system. The MCU's built-in Bluetooth LE capability enables wireless connectivity, facilitating remote monitoring and control of the system.
Moreover, the system incorporates a 1200 V built-in bipolar junction transistor (BJT) based AC/DC system, making it compatible with various industrial power line systems. This feature ensures the system's versatility and adaptability to different environmental conditions and power requirements.
Overall, Renesas' reference design represents a significant advancement in flammable gas leakage detection technology, offering a comprehensive and efficient solution for enhancing safety in industrial and household environments. With its innovative features and smart connectivity options, this system sets a new standard for gas detection systems, providing users with a reliable and user-friendly solution for mitigating potential risks associated with gas leaks.
Very high AC operating range with the iW1821 switched-mode power supply (SMPS) IC
Single MCU + Bluetooth LE 5.1 chip is used for detection and connectivity
Built-in 900 V BJT, isolated flyback AC/DC
LED indication is given for Bluetooth LE connectivity indication
Buzzer indication for safety/security risk from gas leak
Stand alone, wall-mounted system is very small in size and has a low component count
DA14531MOD Bluetooth LE module
SmartBond TINY™ module with small and low power Bluetooth 5.1 SoC
SGAS711 gas sensor
Flammable gas sensor: methane, propane, hydrogen, and LPG
RAA214401 linear regulator (LDO)
150 mA wide input range ultra-low quiescent current linear regulator
iW1822 PWM controller
900 V AccuSwitch™ AC/DC digital primary-side converter for industrial applications up to 18 W
Liquefied petroleum gas (LPG) leak detection
Industrial gas leak detection
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