Home / Products / Wireless Sensor nodes / AS3935 Franklin Lightning Sensor™ IC


  • Detection of both cloud to ground and cloud to cloud lightning activity within a 40km range
  • Intelligent algorithm provides for false disturber rejection
  • Supply voltage range of 2.4-5.5V with power down, listening and active power modes
  • Antenna auto tuning
  • Small MLPW-16 (4mmx4mm) package



  • Provides early warning beyond human senses and gives distance estimation to head of storm
  • Algorithm reduces false indications
  • Selectable power modes make it suitable for low power portable devices
  • Antenna auto tuning provides for optimal receive performance
  • Suitable for portable battery powered applications


Product properties

Channels [#]
Wake-Up Sensitivity [µVpp]
LF Carrier Freq. Range [kHz]
Data Rate (Manch.) [kbit/s]
Dynamic Range [dB]
RSSI Step [dB]
MLPQ-16 (4x4)
Distance estimation up to 40km in 14 steps \ Embedded distance estimation algorithm & auto antenna tuning
Supply [V]
2.4 - 5.5
Current Consumption [(PD/Listening/Active) µA]
1 / 60 / 350
SPI or I²C
Temperature Range [°C]
-40 to +85


  • Watches
  • Key chains
  • Golf carts
  • Portable GPS
  • Bike computers
  • Weather stations
  • Sports equipment
  • Uninterruptible power supply
  • Power line conditioners
  • Smart grid systems
  • Environmental monitoring systems