• 3µA shutdown current 

• 4 strings in parallel and up to 18 LEDs per 

  string 

• External PWM Dimming Control 

• Output voltage up to 65V 

• Up to 180mA Drive Capability for Each String 

• Wide Input voltage range 4.5V to 28V 

• Better than 1.5% LED Current Regulation 

  Accuracy Between Strings 

• Boost Switching frequency can be programmed 

  by external resistor 

•Multiple Fault Protections 

  -Current Limit protection 

  -Output Short circuit detection 

  -Over-temperature protection 

  -Output Over-voltage protection 

• LED current turn off in shutdown mode 

• Integrated UVLO/ Over Thermal protection 

• Minimal 0.5µs LED On-Time regulation 

• Thermal Enhanced 16pin SOP-16 Package 

• RoHS Compliant and 100% Lead (Pb)-Free 

  Halogen-Free