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Features
Meter-Bus Transceiver
BL15721A
Meter-Bus Transceiver (for Slave) Meets Standard EN-1434-3 Adjustable Constant-Current Sink via Resister Receiver Logic With Dynamic Level Recognition Module Supply Voltage Switch 3.3V Constant Voltage Source Remote Powering Polarity Independent Power Fail Function Up to 9600 Baud in Half Duplex for UART Protocol Slave Power Support – Supply From Meter-Bus via Output VDD – Supply From Meter-Bus via Output VDD or From Backup Battery – Supply From Battery – Meter-Bus Active for Data Transmission Only SOP16 package
General Description
BL15721A is a single chip transceiver developed for Meter-Bus standard (EN1434-3) applications. The BL15721A interface circuit adjusts the different potentials between a slave system and the Meter-Bus master.