The TSS721A from Texas Instruments is a dedicated Meter-Bus transceiver IC, designed to provide a cost-effective, high-performance communication interface for metering applications. It is compliant with the European EN 13757-2 standard for remote meter reading systems, making it an ideal choice for utility meters such as water, gas, electric, and heat meters.

Key Features

• Communication: The TSS721A supports bidirectional data communication on the Meter-Bus (M-Bus) and is capable of handling up to 250 kbit/s, ensuring fast and reliable data transfer.
• Power Supply Range: It operates over a wide supply voltage range from 4.5V to 5.5V, which is suitable for various metering applications.
• Integrated Functions: The device includes a voltage regulator and level shifter, reducing the need for external components and simplifying the design process.
• Low Power Consumption: It features a low current consumption mode, making it suitable for battery-powered applications where power efficiency is crucial.
• Protection: The TSS721A incorporates thermal shutdown and current limitation to protect against fault conditions, enhancing the reliability of the metering system.

Applications

The TSS721A is specifically designed for the implementation in automatic meter reading (AMR) systems and can be used across a range of metering applications including:

• Residential and commercial energy meters
• Water and gas meters
• Heat meters and heating cost allocators

Technical Specifications

For detailed technical specifications, the TSS721A datasheet provides in-depth information including electrical characteristics, pin configurations, and application circuit examples.

In summary, the TSS721A Meter-Bus transceiver from Texas Instruments stands out for its robust communication capabilities, low power consumption, and integrated protective features, making it a top choice for developers and engineers in the field of smart metering.