ON Semiconductor has introduced a new integrated slave transceiver for use in two-wire Meter Bus (M-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 (UART) 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 (V) low drop-out (LDO) 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.
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.
For more information, visit http://www.onsemi.com.