Sense the Storm www.ams.com/AS3935 We provide innovative AS3935 Franklin Lightning Sensor IC analog solutions to the most challenging - Early warning indication of lightning storm activity within a 40km range applications in sensor - Provides distance estimation to the head of the storm and sensor interfaces, - Detects both cloud-to-ground and intra-cloud (cloud-to-cloud) ashes power management, - Intelligent algorithm provides for false disturber rejection - Suitable for low power portable devices and wireless.General Description The AS3935 is a programmable lightning sensor IC that detects the presence and approach of potentially hazardous lightning activity in the vicinity. It detects intracloud plication. Personal safety can be set at the most conservative alert, whereas equipment approaching storms. The US National Weather Bureau suggests the 30-30 rule when thresholds, and false disturber rejection, enable current consumption to be optimized 30 seconds later, the storm is within 10 km. Head immediately for a safe shelter. both indoors as well as outdoors, just by changing the gain setting in a register. Stay in the shelter for 30 minutes after the last sound of thunder you hear). Portable devices such as GPS, watches, bike computers and hand-helds can moni- The AS3935 detects lightning activity as it approaches from up to 40km away which tor the environment to warn of potential lightning strikes. Devices such as weather provides a much longer distance for lightning warning. In addition, the AS3935 telecom, smart grid systems, medical equipment and computers can switch to battery distance of the storm activity can be statistically calculated from the measured signals. backed or generator power when strikes threaten the integrity of the power system. Applications Features - Watches - Franklin Lightning Sensor provides early warning indication of lightning - Golf carts storm activity within a 40km range - Pool safety - Provides distance estimation to the head of the storm - Portable GPS - - Bike computers - Intelligent algorithm provides for false disturber rejection - Weather stations - Programmable detection levels enable threshold setting - Sports equipment 2 - Uninterruptible power supply - SPI and I C interface is used for control and register reading - Power line conditioners - Automatic antenna tuning - Smart grid systems - Supply voltage range 2.4 to 5.5V - Environmental monitoring systems - Power-down, listening and active mode - Temperature range: -40C to 85C AS3935 Block Diagram AS3935 Awards and Mentions I2CL/ I2CD/ CS SCL MISO MOSI SINT ADD0 ADD1 VDD VREG EN VREG - Sensors Expo 2012: Gold Award Winner - EDNs list ofHot 100 Products 2012 Voltage - Elektra Award: Finalist 2012 Regulator SPI I2C I2C ADD - Electronic Product Magazine:Product of the Yea 2012 ACG - Wireless Design & Development: 2012 Readers Choice Award Register Noise Floor - - Elektronik Product of the Year 2013 Noise Floor Level Evaluation POR Generation - ACE-Awards:Ultimate Produc 2013 INP TEST AFE INN LC-Oscillator Watchdog Signal Validation IRQ Calibration Energy Calculation AS3935 TRCO SRCO Bias Statistical Distance Estimation Block Clock Generators Lightning Algorithm GND www.ams.com products ams.com 03/2013 by ams Subject to change without notice Headquarters ams AG sales-europe ams.com Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria sales-asia ams.com Phone +43 3136 500-0 Fax +43 3136 525-01 sales-americas ams.com