NCN5150

NCN5150 Wired M-BUS Slave Transceiver Description The NCN5150 is a single-chip integrated slave transceiver for use in two-wire Meter Bus (M-BUS) slave devices and repeaters. The transceiver provides all of the functions needed to satisfy the European Standards EN 13757−2 and EN 1434−3 describing the physical layer requirements for M-BUS. It includes a programmable power level of up to 2 (SOIC version) or 6 (NQFP version) unit loads, which are available for use in external circuits through a 3.3 V LDO regulator. The NCN5150 can provide communication up to the maximum M-BUS communication speed of 38,400 baud (half-duplex). Features Single-chip MBUS Transceiver UART Communication Speeds Up to 38,400 baud Integrated 3.3 V VDD LDO Regulator with Extended Peak Current Capability of 15 mA Supports Powering Slave Device from the Bus or from External Power Supply Adjustable I/O Levels Adjustable Constant Current Sink up to 2 or 6 Unit Loads Depending on the Package Low Bus Voltage Operation Extended Current Budget for External Circuits: at least 0.88 mA Polarity Independent Power-Fail Function Fast Startup − No External Transistor Required on STC Pin Industrial Ambient Temperature Range of −40°C to +85°C Available in: ♦ 16-pin SOIC (Pin-to-Pin Compatible with TSS721A) ♦ 20-pin QFN These are Pb-free Devices Typical Applications Multi-energy Utility Meters ♦ Water ♦ Gas ♦ Electricity ♦ Heating systems Related Standards − European Standard EN 13757−2, EN ...