3rd Generation AC direct LED driver IC

The POLARIS Series ELK-EE3200 is an AC direct LED power drive IC with earthquake sensing. ELK-EE3200 includes 32bit programmable MCU, Earthquake sensor, LED drive circuit, Power outage switch. It helps developer makes simple design of earthquake and emergency lighting and time to market. The ELK-EE3200 is available in 24pin QFN package

  • No SMPS, No chemical capacitor
  • High Power Factor: >95%
  • High Efficiency: >90%
  • Adjustable LED power consumption with external resistors
  • Low THD line current : <20%
  • Drive LEDs up to 36W(220AVC), 15W(100AVC)
  • 32bit ARM Cortex M0+ / 192KB Flash. 20KB SRAM, 6KB EEPROM
  • MEMS 3-axis accelerometer
  • Battery monitoring / Battery charging output
  • Earthquake pattern analysis, alarm decision algorism
  • Only one 18650 Li-Ion battery(2,000mAh): around 300min(5hours) lighting ON when power outage
  • Internal programmable MCU: analysis and decision according to conditions(Magnitude of earthquake, Power outage, control battery current)
  • Scalable: Wireless IoT(BLE or ZigBee) / Sensor(Motion sensor, fire sensor, Temp/Humidity)
  • 14mm x 14mm QFN 24pin package


SMPS + MEMS 3-axis accelerometer + 32bit ARM + overvoltage/overheating regulation + battery charging function

Over Voltage 200%

Capable of withstanding an over-voltage range up to 200%

Lighting management technology

During non-power recovery time in the event of an earthquake, it can be operated by an emergency light and the amount of light driving can be adjusted.



  • Small size earthquake sensor light

  • Sensor LED lighting

  • Down-light

  • Security lighting & Street lighting