Power Line Communication (PLC) is a rapidly growing market. Utilizing Renesas’ third generation of market-leading powerline communication modem solutions, this winning combination illustrates how PLC can be used in an IoT application. In this design, the RL78/I1C MCU is utilized to measure the voltage/current/phase of the AC power line. That data is then transmitted over PLC via the RL78/G13 to the CPX3 modem SoC and the ISL15110 PLC line driver. These devices are powered by the ISL85415 step-down regulator and a Renesas photocoupler is also utilized to detect zero-crossings and to protect the CPX3 from potential voltage spikes.

Key Features:

  • Can be used for any PLC protocol standard, such as PRIME 1.3.6/1.4 and G3
  • 2-chip solution for PLC (CPX3 PLC modem combined with the ISL15110 line driver)
  • Low power design delivers high efficiency in a small space
  • RL78/I1C is designed specifically for the needs of the smart electricity meter market
  • PS2561F-1 photocoupler provides 5000Vrms isolation voltage and high-speed switching

Related Products

Product Description Featured Document Ordering
RL78/G13 Low power, high integration general-purpose microcontrollers RL78/G13 Hardware User's Manual Select Specific Device
RL78/I1C Microcontroller for high precision smart electricity metering RL78/I1C Hardware User's Manual Select Specific Device
Modem IC      
R9A06G037 High performance narrow band power line communication modem IC Datasheet Contact Sales
Buck Regulator      
ISL85415 Wide VIN 500mA synchronous buck regulator Datasheet Buy / Sample
PLC Line Driver      
ISL15110 PLC MIMO line driver Datasheet Buy / Sample
PS2561FL-1 DC input/single transistor output photocoupler Datasheet Buy / Sample