Integrated slave transceiver for M-BUS remote metering

12th September 2013
Posted By : Nat Bowers
Integrated slave transceiver for M-BUS remote metering

ON Semiconductor announce the new NCN5150 integrated slave transceiver for use in two-wire Meter Bus slave devices and repeaters. The NCN5150 provides all necessary functionality to satisfy the EN 13757-2 and EN 1434-3 standards that describe the physical layer requirements for remote meter reading M-BUS applications in multi-energy, heating and cooling, water and gas meters.

The NCN5150 achieves Universal Asynchronous Receiver/Transmitter communication speeds of up to 38400 baud and includes a programmable power level of up to two (SOIC-packaged version) or six (QFN-packaged version) unit loads which are available for use in external circuits through an integrated 3.3 volt low drop-out regulator. Low internal power consumption makes extra power available for the sensor in the application, while low voltage bus operation (down to 9.2 V) allows operation on extended M-BUS networks.

The NCN5150 is available in a choice of SOIC-16 and QFN-20 packages; the SOIC-16 offers pin-to-pin compatibility with existing devices currently on the market, plus a number of performance improvements. The dimensions of the QFN package make it ideal for use in the growing number of space constrained applications.

Designed using ON Semiconductor’s latest mixed-signal technology, the NCN5150 is robust and has a wide operating temperature range of -40 °C to +85 °C, making it suitable for use in the varied and often unpredictable operating environments typical in this market sector. Other key features of the polarity independent devices include a power fail function, fast start-up, and the ability to support the powering of a slave device from either the bus or an external power supply.

Ryan Cameron, vice president of Industrial and Timing products at ON Semiconductor, comments: “Remote meter reading is a rapid growth market in both domestic and industrial sectors said. The NCN5150 integrated slave harnesses ON Semiconductor’s advanced mixed-signal technology know-how to provide the required performance levels for these applications, not only in terms of standards compliance, but also ruggedness, efficiency, speed and flexibility.”

Packaging and pricing

The RoHS-compliant NCN5150 is priced at $1.30 USD for the SOIC-16 version in 3,000 unit quantities, and at $1.26 USD for the QFN-20 version in 2,500 unit quantities.

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