• BL15721B_V1.0_en.pdf

  （Documentation）

  ALL

• 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
• SOP16 package

The BL15721B is a single chip transceiver developed for Meter-Bus standard (EN1434-3) applications.The BL15721B interface circuit adjusts the different potentials between a slave system and the Meter-Bus master. The receiver has dynamic level recognition, and the transmitter has a programmable current sink. The circuit is supplied by the master via the bus. Therefore, this circuit offers no additional load for the slave battery.