onsemi NCN51xx KNX transceiver

NCN51XX is either a PHY-only transceiver or both MAC and PHY transceiver which handles the transmission and reception of data on the bus.

NCN51XX is either a PHY-only transceiver or both MAC and PHY transceiver which handles the transmission and reception of data on the bus.

It generates from the unregulated bus voltage stabilized voltages for its own power needs as well as to power external devices. NCN51XX assures safe coupling to and decoupling from the bus and does not require external XTAL for proper operation.

NCN5110

• bit (or PHY-only) transceiver 

 

NCN5120      

• is ideal for high power applications
• It integrates a 20 V regulator and two high efficient DC-DC converters generating a fixed 3.3 V and a selectable 3.3 to 21 V regulated voltage

 

NCN5121, 
NCN5130

• embeds both PHY and MAC layers
• Various monitors (bus voltage, current, temperature...) are made available through an analog pin.

 

Key features

 

Additional features

• KNX certified TP transceiver with embedded PHY and MAC layers (TP1-256). 9600 Bauds communication speed.
• Two high efficient DC-DC converters + one linear regulator :
  • DC-DC1: fixed 3.3 V
  • DC-DC2: adjustable between 1.2 and 21 V
  • 20 V linear regulator
• Supervision of temperature, KNX bus voltage and current
• Supervision of temperature and of the power regulators
• Extended ambient temperature range -40 to +105° C

 

Applications

• Smart Home
• Building Automation
• Smart lighting and switches
• Ventilation and air conditioning
• Thermostats
• Alarms and smoke detectors
• Shutters and blinds
• Occupancy detection

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