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 3.3V LDO regulator. The NCN5150 can provide communication up to the maximum M-BUS communication speed of 38400 baud (half-duplex).
●Features
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● Single-chip M-Bus transceiver
● UART communication speeds up to 38400 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 -40C to +85C
● Available in:
●\- 16-pin SOIC (pin-to-pin compatible with TSS721A)
●\- 20-pin QFN
● These are Pb-free devices
